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Journal articles on the topic 'Thiosemicarbazone complexes'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Verma, K. K., N. Nirwan, R. Singh, and N. Bhojak. "Microwave Assisted Synthesis, Characterisation and Biological Activities of Cu(II) Complexes of Few Thiosemicarbazones Ligands." Journal of Scientific Research 15, no. 1 (2023): 275–83. http://dx.doi.org/10.3329/jsr.v15i1.60772.

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Thiosemicarbazones are class of compounds which are obtained by the condensation of thiosemicarbazide with carbonyl compounds. The transition metal complexes of thiosemicarbazones are widely considered due to their broad spectrum of biological activities such as antibacterial, antitumor and antifungal activities. In present research work a series of four novel Cu(II) aryl thiosemicarbazones complexes having the general composition [Cu(L1)2Cl2], [Cu(L2)2Cl2], [Cu(L3)2Cl2] and [Cu(L4)2Cl2]{where L1= 4-nitroacetophenone thiosemicarbazones (4NAT), L2 = 3-nitrobenzaldehyde thiosemicarbazone (3NBT),

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2

Vaishnav, Brijesh Kumar, and S. K. Verma. "Development of Nickel(II) Thiosemicarbazone Complexes as Potential Antibacterial Agents: Microwave Assisted Synthesis, Spectral Characterization and Antibacterial Studies." Oriental Journal Of Chemistry 41, no. 1 (2025): 193–200. https://doi.org/10.13005/ojc/410123.

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Some novel Nickel(II) aryl thiosemicarbazone complexes with the formula [Ni(LIGAND-1)2(NO3)2], [Ni(LIGAND-2)2(NO3)2], [Ni(LIGAND-3)2(NO3)2], and [Ni(LIGAND-4) 2(NO3)2] have been successfully synthesized. LIGAND-1 corresponds to 4-Phenyl-3-buten-2-one thiosemicarbazone (PBTSC), LIGAND-2 is 4-Hydroxy-3-methylbenzaldehyde thiosemicarbazone (HMBTSC), LIGAND-3 refers to 4-Methoxybenzaldehyde thiosemicarbazone (MBTSC), and LIGAND-4 represents Propiophenone thiosemicarbazone (PTSC). The Ligands were synthesized by reacting thiosemicarbazide with substituted aromatic aldehydes and ketones using microw

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3

Martínez-Estévez, Mónica, Soledad García-Fontán, Saray Argibay-Otero, Inmaculada Prieto, and Ezequiel M. Vázquez-López. "Synthesis, Characterization, and Cytotoxicity Studies of N-(4-Methoxybenzyl) Thiosemicarbazone Derivatives and Their Ruthenium(II)-p-cymene Complexes." Molecules 27, no. 22 (2022): 7976. http://dx.doi.org/10.3390/molecules27227976.

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The reaction of [Ru2Cl2(μ-Cl)2(η6-p-cymene)2] with two thiosemicarbazones obtained by the condensation of N-(4-methoxybenzyl) thiosemicarbazide and 1,4-hydroxy-3-methoxyphenyl)ethan-1-one (HL1) or 2-fluoro-4-hydroxybenzaldehyde (HL2) was studied. The cationic complexes of formula [RuCl(η6-p-cymene)(HL)]+ were isolated as solid chloride and trifluoromethylsulfate (TfO) salts. A study of the solid state and NMR spectra suggests the presence in the material of two isomers that differ in the configuration in the iminic bond, C2=N3, of the coordinated thiosemicarbazone in the triflate salts and onl

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4

P., Verma, K. Arya K., and Ahmad S. "Oxovanadium(Iv), oxomolybdenum(v) and manganese(II) complexes of Schiff bases derived from thiosemicarbazide." Journal of Indian Chemical Society Vol. 83, Apr 2006 (2006): 327–31. https://doi.org/10.5281/zenodo.5835686.

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Department of Chemistry, Bareilly College, Bareilly-243 00 I, Uttar Pradesh, India <em>Manuscript received 28 October 2003, revised 14 November 2005, accepted 2 December 2005</em> Metal complexes formed by the interaction of bis(furfuryl-2-aldehyde) thiosemicarbazonc [FAL TSC], bis(indole-3-aldehyde) thiosemicarbazone [IALTSC], bis(3-methyl salicylaldehyde) thiosemicarbazone [MSALTSC], bis(S-methyl salicylaldehyde) thiosemicarbazone [M'SALTSC] and bis(S-bromo salicylaldehyde) thiosemicarbazone [BSALTSC] with oxovanadium(Iv), oxo·molybdenum(v) and managanese(n) chloride have been pre

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5

Kamal, Kishor Verma, and Kumar Verma Suresh. "Microwave Assisted Synthesis, Spectroscopic Characterization and Antimicrobial Activities of Co(II) Complexes Containing Biologically Active Thiosemicarbazone Derivatives." Chemistry Research Journal 6, no. 5 (2021): 80–86. https://doi.org/10.5281/zenodo.11805215.

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<strong>Abstract </strong>In present study two thiosemicarbazone ligands i.e. 4HAT and 3NBT and their  novel Cobal(II) aryl thiosemicarbazones complexes having the general composition [Co(L<sub>1</sub>)<sub>2</sub>Cl<sub>2</sub>], [Co(L<sub>2</sub>)<sub>2</sub>Cl<sub>2</sub>],{where L<sub>1</sub>= 4-Hydroxyacetophenone thiosemicarbazones (4HAT), L<sub>2 </sub>= 3-Nitrobenzaldehyde thiosemicarbazones (3NBT), have been synthesized by the reaction of thiosemicarbazide with substituted aromatic aldehydes and ketones by conventional heating as well as microwave irradiations method followed by

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6

Castiñeiras, Alfonso, Nuria Fernández-Hermida, Isabel García-Santos, Lourdes Gómez-Rodríguez, Antonio Frontera, and Juan Niclós-Gutiérrez. "Synthesis, Structural Characterisation, and Electrochemical Properties of Copper(II) Complexes with Functionalized Thiosemicarbazones Derived from 5-Acetylbarbituric Acid." Molecules 29, no. 10 (2024): 2245. http://dx.doi.org/10.3390/molecules29102245.

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The reaction between 5-acetylbarbituric acid and 4-dimethylthiosemicarbazide or 4-hexamethyleneiminyl thiosemicarbazide produces 5-acetylbarbituric-4-dimethylthiosemicarbazone (H2AcbDM) and 5-acetylbarbituric-4N-hexamethyleneiminyl thiosemicarbazone (H2Acbhexim). Eight new complexes with different copper(II) salts have been prepared and characterized using elemental analysis, molar conductance, UV–Vis, ESI-HRMS, FT-IR, magnetic moment, EPR, and cyclic voltammetry. In addition, three-dimensional molecular structures of [Cu(HAcbDM)(H2O)2](NO3)·H2O (3a), [Cu(HAcbDM)(H2O)2]ClO4 (4), and [Cu(HAcbHe

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7

Nagoor Meeran M and Narayanan Ravisankar. "Synthesis and characterization of substituted acetophenone-4, 4-dimethyl-3-thiosemicarbazone derivatives with an evaluation of antimicrobial and antioxidant activities." International Journal of Research in Pharmaceutical Sciences 11, no. 4 (2020): 7192–97. http://dx.doi.org/10.26452/ijrps.v11i4.3844.

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Thiosemicarbazones are organic compounds; these are widely used in the medical field. It is primarily in the manufacture of pharmaceutical drugs and bio molecules. These compounds have the azomethine functional group (-N=CH-) used to derive organic open chain and heterocyclic compounds. Thiosemicarbazones are similar to semicarbazones, and carbonyl group oxygen is replaced by sulphur. Thiosemicarbazone contains nitrogen and sulfur atoms, so they are used as ligands in coordination chemistry and form metal complexes. Thiosemicarbazone and its metal complexes are used in a variety of ways. It is

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8

Castiñeiras, Alfonso, Maria Gil, Elena Bermejo, and Douglas X. West. "Structural and Spectral Studies of Palladium (II) Complexes of Pyridil bis{3-Piperidyl-, bis{Hexamethyleneiminyl-, bis{N(4)-Diethyl- and bis{N(4)-Dipropylthiosemicarbazone}." Zeitschrift für Naturforschung B 55, no. 9 (2000): 863–70. http://dx.doi.org/10.1515/znb-2000-0910.

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Pyridil bis{N(4)-substituted thiosemicarbazones}, in which the substituents replacing the NH2 group on the thiosemicarbazone moieties are piperidyl, H2Plpip; hexamethyleneiminyl, H2Plhexim; diethylamino, H2Pl4DE; and dipropylamino, H2PI4 DP, have been synthesized. Representative palladium(II) complexes of these bis (thiosemicarbazones) have been characterized by IR, electronic, mass, and 1H and 13C NMR spectroscopy. Crystal structures have been determined for H2Plhexim and two of its palladium(II) complexes. H2Plhexim is in the Z isomeric form with intramolecular hydrogen bonding from both thi

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9

Pino-Cuevas, Arantxa, Ana Graña, Ulrich Abram, Rosa Carballo, and Ezequiel M. Vázquez-López. "Structural study of mono-, di- and tetranuclear complexes of the {Re(CO)3}+ fragment with thiosemicarbazone/thiosemicarbazonate ligands containing benzothiazole or benzoxazole groups." CrystEngComm 20, no. 33 (2018): 4781–92. http://dx.doi.org/10.1039/c8ce00874d.

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10

Muthukumar, Manisekar, and Periasamy Viswanathamurthi. "Synthesis, spectral characterization and catalytic studies of new ruthenium(II) chalcone thiosemicarbazone complexes." Open Chemistry 8, no. 1 (2010): 229–40. http://dx.doi.org/10.2478/s11532-009-0116-x.

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AbstractA series of new hexa-coordinated ruthenium(II) complexes of the type [Ru(CO)(EPh3)(B)(L)] (E = P or As; B = PPh3, AsPh3 or Py; L = chalcone thiosemicarbazone) have been prepared by reacting [RuHCl(CO)(EPh3)2(B)] (E = P or As; B = PPh3, AsPh3 or Py) with chalcone thiosemicarbazones in benzene under reflux. The new complexes have been characterized by analytical and spectroscopic (IR, UV-vis, 1H, 31P and 13C NMR) methods. On the basis of data obtained, an octahedral structure was assigned for all of the complexes. The chalcone thiosemicarbazones behave as dianionic tridentate O, N, S don

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11

Cobeljic, Bozidar, Marijana Zivkovic, Ivana Matic, et al. "Synthesis, characterization and biological activity of Pt(II) complexes with steroidal thiosemicarbazones." Journal of the Serbian Chemical Society, no. 00 (2020): 83. http://dx.doi.org/10.2298/jsc201211083c.

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In this work, Pt(II) complexes of previously synthesized steroidal thiosemicarbazones were synthesized and characterized. The ligands and their metal complexes were studied by analytical and spectroscopic data (elemental analysis, IR, 1D NMR and 2D NMR, HSQC, HMBC, NOESY, COSY), the analysis of which enabled complete 1H and 13C assignments of each compound including E and Z isomers. All the synthesized ligands and complexes were screened for their cytotoxic and antimicrobial activity. The results demonstrate that new steroidal thiosemicarbazone complexes were significantly less cytotoxic than

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12

Čobeljić, Božidar R., Marijana B. Živković, Ivana Z. Matić, et al. "Synthesis, characterization and biological activity of pt(ii) complexes with steroidal thiosemicarbazones." J Serb Chem Soc 85, no. 5 (2021): 459–68. https://doi.org/10.2298/JSC201211083C.

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Abstract: In this work, Pt(II) complexes of previously synthesized steroidal thiosemicarbazones were synthesized and characterized. The ligands and their metal complexes were studied by analytical and spectroscopic data (elemental analysis, IR, 1D NMR and 2D NMR, HSQC, HMBC, NOESY, COSY), the analysis of which enabled complete 1H and 13C assignments of each compound including E and Z isomers. All the synthesized ligands and complexes were screened for their cytotoxic and antimicrobial activity. The results demonstrate that new steroidal thiosemicarbazone complexes were significantly less cytot

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13

Verochkina, E. A., N. V. Vchislo, L. I. Larina, and E. A. Titov. "Synthesis and characterization of 2,5-dibutylthio-2,3-dihydro-2-formyl-4H-pyran thiosemicarbazones and their copper complexes." Proceedings of Universities. Applied Chemistry and Biotechnology 12, no. 1 (2022): 167–72. http://dx.doi.org/10.21285/2227-2925-2022-12-1-167-172.

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Previously unknown derivatives of thiosemicarbazide were obtained in high yields by the condensation reaction of 2,5-dibutylthio-2,3-dihydro-2-formyl-4H-pyran with 4-phenylthiosemicarbazide or thiosemicarbazide when boiling in EtOH. The reaction products are represented by colored oils. Cu(II) complexes based on 2,5-dibutylthio-2,3-dihydro-2-formyl-4H-pyran carbazones were synthesized by their interaction with copper (II) chloride. All these complexes are soluble in dimethylformamide (DMF) and dimethyl sulfoxide (DMSO) and, according to elemental analysis, have a 1:1 metal-ligand stoichiometry

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14

Ozturk, Ibrahim I., Emine I. Sumer, Grzegorz Dutkiewicz, et al. "Group VA Aromatic Thiosemicarbazone Complexes: Synthesis, Characterization, Biological Activity, and Topological Studies." International Journal of Molecular Sciences 25, no. 19 (2024): 10794. http://dx.doi.org/10.3390/ijms251910794.

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The antiproliferative and antibacterial activities of thiosemicarbazones increase markedly with the presence of metal ions. One of the factors determining the activity of metal thiosemicarbazone complexes is the coordination structure. In this study, the biological effects of new antimony (III) and bismuth (III) thiosemicarbazone complexes with different binding modes and geometrical structures were demonstrated. Three new complexes, with the formulae {[SbCl3(µ2-S-Hacptsc)(η1-S-Hacptsc)], 2/3H2O,1/3CH2Cl2}, {[SbCl3(κ2-S,N-Hacpmtsc)(η1-S-Hacpmtsc)2CH2Cl2]}, and{[BiCl3(η1-S-Hbzmtsc)3]·C2H5OH}, w

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15

Venkatachalam, T. K., G. K. Pierens, Paul V. Bernhardt, et al. "Heteronuclear NMR Spectroscopic Investigations of Gallium Complexes of Substituted Thiosemicarbazones Including X-Ray Crystal Structure, a New Halogen Exchange Strategy, and 18F Radiolabelling." Australian Journal of Chemistry 69, no. 9 (2016): 1033. http://dx.doi.org/10.1071/ch16044.

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Five thiosemicarbazone ligands have been synthesized, and their coordination chemistry with gallium was investigated. The reaction of these thiosemicarbazones with gallium chloride in alcohol solutions in the presence of a base yielded the corresponding penta-coordinated Ga-Cl metal complexes. In contrast, the reaction of gallium nitrate with the ligands in the presence of alkoxides resulted in the formation of the corresponding Ga-alkoxides, rather than the anticipated Ga-nitrate complex. The crystal structures of gallium chloride and gallium methoxide complexes of diphenylthiosemicarbazone c

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16

Khan, Salman A., Abdullah M. Asiri, Khalid Al-Amry, and Maqsood Ahmad Malik. "Synthesis, Characterization, Electrochemical Studies, andIn VitroAntibacterial Activity of Novel Thiosemicarbazone and Its Cu(II), Ni(II), and Co(II) Complexes." Scientific World Journal 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/592375.

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Metal complexes were prepared by the reaction of thiosemicarbazone with CuCl2, NiCl2, CoCl2, Cu(OAc)2, Ni(OAc)2, and Co(OAc)2. The thiosemicarbazone coordinates to metal through the thionic sulfur and the azomethine nitrogen. The thiosemicarbazone was obtained by the thiosemicarbazide with 3-acetyl-2,5-dimethylthiophene. The identities of these compounds were elucidated by IR,1H,13C-NMR, and GC-MS spectroscopic methods and elemental analyses. The antibacterial activity of these compounds was first testedin vitroby the disc diffusion assay against two Gram-positive and two Gram-negative bacteri

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Ashok, N. Patange*1 Ramesh G.Paloti2 Ramesh N.Zade3 Kushal M.Mude4 &. Bhupesh M.Mude5. "DESIGN, SYNTHESIS AND CHARACTERISATION OF SOME SEMICARBAZONE AND THIOSEMICARBAZONE DERIVED FROM 3-PHENYLQUINAZOLINE-2, 4(1H, 3H)-DIONE." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 5, no. 4 (2018): 10–14. https://doi.org/10.5281/zenodo.1211485.

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This paper presents the synthesis and characterizations of some semicarbazone and thiosemicarbazone derivatives of3-phenylquinazoline-2,4(1H,3H)-dione. All compounds reported here had been characterised by<sup>1</sup>H NMR and IR spectral studies and elemental analysis. semicarbazone and thiosemicarbazone derivatives of 3-phenylquinazoline-2,4(1H,3H)-dionewere prepared by treating mixture of phenyl isocyanates and anthanilic acid in ethanol to get 3-phenylquinazoline-2,4(1H,3H)-dionewhich will then condense with substituted4-chloro/bromo/iodoAcetophenones in ethanolto form the chalcones .this

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18

Zalatariov, Mirela, Marta Hammerstad, J. Homayon Arabshahi, et al. "New iminodiacetate-thiosemicarbazone hybrids and their copper(II) complexes are potential ribonucleotide reductase R2 inhibitors with high antiproliferative activity." Inorganic Chemistry 56, no. 6 (2017): 3532–49. https://doi.org/10.1021/acs.inorgchem.6b03178.

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As ribonucleotide reductase (RNR) plays a crucial role in nucleic acid metabolism, it is an important target for anticancer therapy. The thiosemicarbazone Triapine is an efficient R2-inhibitor, which has entered about 20 clinical trials. Thiosemicarbazones are supposed to exert their biological effects through effectively binding transition metal ions. In this study, six iminodiacetate-thiosemicarbazones able to form transition metal complexes, as well as six dicopper(II) complexes were synthesized and fully characterized by analytical, spectroscopic techniques (IR; UV‒vis, 1H and 13C NMR), ES

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19

Agarwal, Ram K., and Surendra Prasad. "Synthesis, Spectroscopic and Physicochemical Characterization and Biological Activity of Co(II) and Ni(II) Coordination Compounds with 4-Aminoantipyrine Thiosemicarbazone." Bioinorganic Chemistry and Applications 3, no. 3-4 (2005): 271–88. http://dx.doi.org/10.1155/bca.2005.271.

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We describe the synthesis and characterization of cobalt(II) and nickel(II) coordination compounds of 4[N-(furan-2’-aldimine)amino]antipyrine thiosemicarbazone (FFAAPTS) and 4[N-(4'-nitrobenzalidene) amino]antipyrine thiosemicarbazone (4'-NO2BAAPTS). All the isolated compounds have the general composition MX2(L)(H2O) (M = Co2+or Ni2+; X = Cl, Br, NO3, NCS or CH3COO; L = FFAAPTS or 4'-NO2BAAPTS) and M(ClO4)2(L)2(M = Co2+or Ni2+; L = FFAAPTS or 4'-NO2BAAPTS). Infrared spectral studies indicate that both the thiosemicarbazones coordinate in their neutral form and they act as {N,N,S} tridentate ch

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20

Dipke, S. S. "Synthesis, structural characterization, thermal analysis and antimicrobial assay of Co (II) complexes derived from benzaldehyde N4-substituted thiosemicarbazone." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 008 (2024): 1–6. http://dx.doi.org/10.55041/ijsrem37435.

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Microwave assisted Co (II) complexes of N4 -Substituted thiosemicarbazone were synthesized (TSC-La-f) and characterized by UV-visible spectra, IR spectra, 1H and 13C NMR spectra, elemental analysis, TGA, magnetic measurements and molar conductance. On the basis of spectral data, magnetic moment and thermal analysis square planar geometry assigned to Co(II) complexes. The electrolytic nature of the complexes was confirmed by their moderately high molar conductance values. All the metal complexes were screened for antimicrobial assay. Among all the complexes (TSC-Le) showed more activity than ot

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21

Huang, Yanmin, Erbin Kong, Chunfang Gan, Zhiping Liu, Qifu Lin, and Jianguo Cui. "Synthesis and Antiproliferative Activity of Steroidal Thiosemicarbazone Platinum (Pt(II)) Complexes." Bioinorganic Chemistry and Applications 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/742592.

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Steroidal compounds exhibit particular physiological activities. In this paper, some steroidal thiosemicarbazones platinum (Pt(II)) complexes were synthesized by the condensation of steroidal ketones with thiosemicarbazide using estrone, chenodeoxycholic acid, and 7-deoxycholic acid as starting materials and complexation of steroidal thiosesemicarbazones with Pt(II). The complexes were characterized by IR, NMR, and MS, and their antiproliferative activities were evaluated. The results showed that some steroidal thiosemicarbazones platinum (Pt(II)) complexes displayed moderate cytotoxicity to H

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22

Badannavar, Dr. N. Y. "Exploring the Coordination Chemistry and Biological Applications of Compartmental Complexes of Thiosemicarbazones: Synthesis, Characterization, and Functional Insights." International Journal of Advance and Applied Research 5, no. 44 (2024): 48–57. https://doi.org/10.5281/zenodo.14685664.

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<strong>Abstract:</strong> Compartmental complexes of thiosemicarbazones, a class of versatile ligands derived from thiosemicarbazide and aldehydes or ketones, have garnered significant attention in coordination chemistry due to their ability to form stable chelates with a wide range of metal ions, and their structural flexibility, arising from the presence of both sulfur and nitrogen donor atoms, enables them to adopt diverse coordination modes that facilitate the formation of mono-, bi-, and polynuclear complexes with well-defined geometries, which are not only of theoretical interest but al

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Dipke, S. S., and J. R. Gujarathi. "4(N)-ARYL/ALKYL SUBSTITUTED THIOSEMICARBAZONE DERIVED METAL COMPLEXES, THEIR SPECTRAL AND BIOCHEMICAL STUDIES: A REVIEW." International Journal of Advanced Research 12, no. 11 (2024): 584–636. https://doi.org/10.21474/ijar01/19870.

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N(4)-alkyl/aryl substituted thiosemicarbazones and their metal complexes show significantly enhanced biochemical properties than well-known standard drugs. In this review, we extensively focused on the synthesis, biological applications, and structural characterization of the aforementioned compounds over the past decade. A detailed description of the structures of thiosemicarbazone derivatives substituted at the N(4)-position and their metal complexes is presented here. The structures of the compounds were elucidated with respect to their bonding interactions with metal ions and their geometr

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Ali, Al-Ameen Bariz Omar. "Synthesis, Characterization and Kinetic Study of Monomeric Complexes of Cyclohexane-1, 2- bis (Thiosemicarbazone) with Cobalt (II), Nickel (II) and Copper (II)." Al-Mustansiriyah Journal of Science 28, no. 2 (2018): 48. http://dx.doi.org/10.23851/mjs.v28i2.499.

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Cyclohexane-1,2-bis(thiosemicarbazone) (CHTSC) was synthesized via the condensation reaction of cyclohexane-1,2-dione and thiosemicarbazide. Series of metal complexes of the prepared lig-and, of general formula [M(CHTSC)(NO3)2], were reported. The prepared coordination complex-es were characterized and their structures elucidated using different techniques. These showed that all complexes are octahedral geometries. The kinetics of the formation of these complexes have been investigated using stopped-flow spectrophotometry. These studies revealed that the reactions are completed on the second’s

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25

Vishwakarma, Ananya, S. K. Sengupta, and O. P. Pandey. "Synthesis, Characterization and Photo-Physical Properties of Europium(III) and Terbium(III) Complexes with Thiosemicarbazones." Asian Journal of Chemistry 32, no. 4 (2020): 952–58. http://dx.doi.org/10.14233/ajchem.2020.22532.

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Europium(III) and Terbium(III) complexes of type [Eu(L)Cl(H2O)2] and [Tb(L)OAc(H2O)2] (H2L = thiosemicarbazone ligands derived from substituted thiosemicarbazide and benzil/diacetyl) were synthesized. The ligands and synthesized complexes were characterized on the basis of elemental analysis, FT-IR and 1H NMR and X-ray diffraction studies. Photo-physical properties such as excitation spectra, emission spectra and luminescence curves of complexes were investigated. The most intense peak of Eu3+ ion found at 618 nm attributed to 5D0 → 7F2 transition and peak of Tb3+ ion at 549 nm attributed to 5

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Yousif, Enaam Ismail, Nihad Kadhum Hasan, and Mohamad J. Al Jeboori. "New Metal Complexes of Thiosemicarbazone Mannich base Ligand; Synthesis, Structural Characterisation and Biological Activity." Pakistan Journal of Medical and Health Sciences 16, no. 6 (2022): 565–70. http://dx.doi.org/10.53350/pjmhs22166565.

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The synthesis of a new tridentate Schiff-base thiosemicarbazone ligand (HL) that derived from the reaction of ((R)-2-((4-(dimethylamino)phenyl)((2-nitrophenyl)amino)methyl)-5,5-di methyl- cyclohexane-1,3-dione with thiosemicarbazide is reported. The reaction of the title ligand(E)-2-((R)-2-((R)-(4-(dimethylamino)phenyl)((2-nitrophenyl)amino)methyl)-5,5-dimethyl-3-oxocyclohexylidene)hydrazine-1-carbothioamide with selected metal ions of Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) gave the title monomeric complexes. Analytical and spectroscopic techniques were used, as required, to characterise th

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27

Jyothi, N. Rama, N. A. Mohamed Farook, Jaya Madhuri, and K. Gowthami. "Synthesis, Characterization of Copper Complexes of 9H-Carbazole-3-carbaldehyde-4-phenylthiosemicarbazone, 10-Hexyl-10-H-phenothiazine-3-carbaldehyde-4-phenylthio semicarbazone and 2-Thiophenecarboxaldehyde-4-methyl- thiosemicarbazone and Anti-bacterial Activity Studies of Ligands and Complexes." Oriental Journal Of Chemistry 36, no. 6 (2020): 1119. http://dx.doi.org/10.13005/ojc/360615.

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In Coordination chemistry metal chelating agents has a vital role, among them thiosemicarbazones occupies an important place due to their a range of applications in different fields, such as analytical and biological. In the literature we can find many thiosemicarbazones which has a wide range of applications both in pharmacy and chemical fields. But still there is a scope is there to synthesize new thiosemicarbazone ligands and their metal complexes due to their utility is still there in modern chemistry also. In this present study we synthesized the copper(II) complexes of 9H-Carbazole-3-car

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Hernández, Wilfredo, Juan Paz, Fernando Carrasco, et al. "Synthesis and Characterization of New Palladium(II) Thiosemicarbazone Complexes and Their Cytotoxic Activity against Various Human Tumor Cell Lines." Bioinorganic Chemistry and Applications 2013 (2013): 1–12. http://dx.doi.org/10.1155/2013/524701.

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The palladium(II) bis-chelate complexes of the type [Pd(TSC1-5)2] (6–10), with their corresponding ligands 4-phenyl-1-(acetone)-thiosemicarbazone, HTSC1(1), 4-phenyl-1-(2′-chloro-benzaldehyde)-thiosemicarbazone, HTSC2(2), 4-phenyl-1-(3′-hydroxy-benzaldehyde)-thiosemicarbazone, HTSC3(3), 4-phenyl-1-(2′-naphthaldehyde)-thiosemicarbazone, HTSC4(4), and 4-phenyl-1-(1′-nitro-2′-naphthaldehyde)-thiosemicarbazone, HTSC5(5), were synthesized and characterized by elemental analysis and spectroscopic techniques (IR and1H- and13C-NMR). The molecular structure of HTSC3, HTSC4, and [Pd(TSC1)2] (6) have bee

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Gaber, Ahmed, Moamen S. Refat, Arafa A. M. Belal, et al. "New Mononuclear and Binuclear Cu(II), Co(II), Ni(II), and Zn(II) Thiosemicarbazone Complexes with Potential Biological Activity: Antimicrobial and Molecular Docking Study." Molecules 26, no. 8 (2021): 2288. http://dx.doi.org/10.3390/molecules26082288.

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Herein, we report the synthesis of eight new mononuclear and binuclear Co2+, Ni2+, Cu2+, and Zn2+ methoxy thiosemicarbazone (MTSC) complexes aiming at obtaining thiosemicarbazone complex with potent biological activity. The structure of the MTSC ligand and its metal complexes was fully characterized by elemental analysis, spectroscopic techniques (NMR, FTIR, UV-Vis), molar conductivity, thermogravimetric analysis (TG), and thermal differential analysis (DrTGA). The spectral and analytical data revealed that the obtained thiosemicarbazone-metal complexes have octahedral geometry around the meta

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David, G. Calatayud, López-Torres Elena, Antonia Mendiola M., J. Pastor César, and R. Procopio Jesús. "Structural Trends in Divalent Benzil Bis(thiosemicarbazone) Complexes." European Journal of Inorganic Chemistry 2005 (September 19, 2005): 4401–9. https://doi.org/10.1002/ejic.200500363.

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Redox-related changes in the biological properties of copper bis(thiosemicarbazones) are induced by the backbone of the ligand. To get information about how these changes depend on the structural parameters, three X-ray structures of complexes with different behaviour of the benzil bis(thiosemicarbazone) ligand have been determined. These include two almost planar copper(II) complexes with different grades of deprotonation in the ligand and a Zn<sup>II</sup> complex in which the ligand acts as a monoanion and a nitrate group is bonded to the metal ion in a square-based pyramid. The changes in

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31

Adhikari, Hari Sharan, Aditya Garai, Chetana Khanal, Rameshwar Adhikari, and Paras Nath Yadav. "Imidazole-2-carboxaldehyde Chitosan Thiosemicarbazones and their Copper(II) Complexes: Synthesis, Characterization and Antitumorigenic Activity against Madin-Darby Canine Kidney Cell Line." Asian Journal of Chemistry 33, no. 5 (2021): 969–76. http://dx.doi.org/10.14233/ajchem.2021.23078.

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Chitosan oligosaccharide and high molecular weight crab shell chitosan were functionalized as imidazole-2-carboxaldehyde chitosan thiosemicarbazones and their copper(II) complexes were synthesized. The synthesized compounds were characterized by FT-IR, 13C NMR, EPR spectroscopy, powder X-ray diffraction (PXRD) analysis, elemental analysis and magnetic susceptibility measurements. The low molecular weight chitosan thiosemicarbazones showed higher in vitro inhibitory activity as studied by MTT assay against the tumorigenic epithelial Madin-Darby Canine Kidney (MDCK) cell line than the correspond

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Hussien, Nasry Jassim, Jasim M. S. Alshawi, Khalid Tuama Abdullah, Enaam I. Yousif, and Mohamad J. Al-Jeboori. "Dimethyltin (IV) complexes of new thiosemicarbazone ligand with piperazine-1-yimethylene moiety: Synthesis, spectral characterization and antibacterial activity." Edelweiss Applied Science and Technology 9, no. 3 (2025): 266–78. https://doi.org/10.55214/25768484.v9i3.5202.

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Three new thiosemicarbazone ligands and their dimethyltin (IV) complexes are reported. The condensation of piperazine-1-carbaldehyde with thiosemicarbazide, 4-methyl-3-thiosemicarbazide, and 4-ethyl-3-thiosemicarbazide was carried out in an ethanol medium using HBr as a catalyst, resulting in the isolation of the ligands (E)-2-(piperazin-1-ylmethylene) hydrazine-1-carbothioamide (HL1), (E)-N-methyl-2-(piperazin-1-ylmethylene) hydrazine-1-carbothioamide (HL2), and (E)-N-ethyl-2-(piperazin-1-ylmethylene) hydrazine-1-carbothioamide (HL3), respectively. The reaction of ligands HL1 - HL3 with dimet

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Pitucha, Monika, Agnieszka Korga-Plewko, Agnieszka Czylkowska, et al. "Influence of Complexation of Thiosemicarbazone Derivatives with Cu (II) Ions on Their Antitumor Activity against Melanoma Cells." International Journal of Molecular Sciences 22, no. 6 (2021): 3104. http://dx.doi.org/10.3390/ijms22063104.

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A series of thiosemicarbazone derivatives was prepared and their anti-tumor activity in vitro was tested. The X-ray investigation performed for compounds T2, T3 and T5 confirmed the synthesis pathway and assumed molecular structures of analyzed thiosemicarbazones. The conformational preferences of the thiosemicarbazone system were characterized using theoretical calculations by AM1 method. Selected compounds were converted into complexes of Cu (II) ions. The effect of complexing on anti-tumor activity has been investigated. The copper(II) complexes, with Schiff bases T1, T10, T12, T13, and T16

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Siddiqui, Eram Jamal, Iqbal Azad, Dr Abdul Rahman Khan, and Dr Tahmeena Khan. "THIOSEMICARBAZONE COMPLEXES AS VERSATILE MEDICINAL CHEMISTRY AGENTS: A REVIEW." Journal of Drug Delivery and Therapeutics 9, no. 3 (2019): 689–703. http://dx.doi.org/10.22270/jddt.v9i3.2888.

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Objective: Thiosemicarbazones are Schiff based ligands of significant biological importance and their biological relevance has been studied for a considerable amount of time period. When the thiosemicarbazones bind with metal ions, they have shown an array of potential anticancer, antimicrobial and antioxidant activities etc. They have also found numerous applications in Analytical Chemistry. This present review summarizes some of the medicinal benefits of thiosemicarbazone based complexes especially with transition metals. Data Sources: The studies cited in the present review were sourced fro

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Castiñeiras, Alfonso, Isabel Garcia, Elena Bermejo, and Douglas X. West. "Structural and Spectral Studies of 2-Pyridineformamide Thiosemicarbazone and its Complexes Prepared with Zinc Halides." Zeitschrift für Naturforschung B 55, no. 6 (2000): 511–18. http://dx.doi.org/10.1515/znb-2000-0612.

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Reduction of 2-cyanopyridine by sodium in dry methanol in presence of thiosemicarbazide produces 2-pyridineformamide thiosemicarbazone, HAm4DH. The crystal structure of HAm4DH, which has a number of intermolecular interactions involving its five NH hydrogen atoms, has been solved. Crystal structures of the complexes prepared by reaction of HAm4DH with zinc(II) chloride, bromide and iodide have also been obtained. Neutral HAm4DH is coordinated via the pyridyl nitrogen, imine nitrogen and thione sulfur atoms, and each complex is five-coordinate with two halogen ligands. The structures of the thr

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36

Bermejo, Elena, Alfonso Castiñeiras, and Douglas X. West. "Structural Study of an N(4)-Substituted Thiosemicarbazone Prepared from 1-Phenyl-1,2-propanedione-2-oxime, and of a Related Nickel(II) Complex." Zeitschrift für Naturforschung B 56, no. 4-5 (2001): 369–74. http://dx.doi.org/10.1515/znb-2001-4-508.

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Abstract 1-Phenyl-1,2-propanedione-2-oxime reacts with 3-piperidylthiosemicarbazide and 3-hexamethyleneiminylthiosemicarbazide to give the respective 1-phenyl-1,2-propanedione-1-thiosemicarbazone-2-oximes, HPopip and HPohexim. The crystal structure of HPopip shows the oxime and thiosemicarbazone moieties in a conformation single-trans respect to carbon-carbon. A six-coordinate nickel(II) complex, [Ni(Pohexim)2], has two monoanionic (through loss of a proton from the thiosemicarbazone function) oxime-thiosemicarbazone ligands coordinated in a meridonal arrangement via the oxime nitrogen, the th

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Namiecińska, Ewelina, Marta Sobiesiak, Magdalena Małecka, Piotr Guga, Barbara Rozalska, and Elzbieta Budzisz. "Antimicrobial and Structural Properties of Metal Ions Complexes with Thiosemicarbazide Motif and Related Heterocyclic Compounds." Current Medicinal Chemistry 26, no. 4 (2019): 664–93. http://dx.doi.org/10.2174/0929867325666180228164656.

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Antibiotic resistance acquired by various bacterial fungal and viral pathogens poses therapeutic problems of increasing severity. Among the infections that are very difficult to treat, biofilm-associated cases are one of the most hazardous. Complex structure of a biofilm and unique physiology of the biofilm cells contribute to their extremely high resistance to environmental conditions, antimicrobial agents and the mechanisms of host immune response. Therefore, the biofilm formation, especially by multidrugresistant pathogens, is a serious medical problem, playing a pivotal role in the develop

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38

Jayita, Dutta, and Bhattacharya Samaresh. "Mixed-ligand benzaldehyde thiosemicarbazone complexes of palladium containing triphenylphosphine as ancillary ligand : Synthesis, structure and catalytic application in C-N coupling reactions." Journal of Indian Chemical Society Vol. 91, Apr 2014 (2014): 663–70. https://doi.org/10.5281/zenodo.5717981.

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Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata-700 032, India <em>E-mail</em> : samaresh_b@hotmail.com <em>Manuscript received online 24 July 2013, accepted 30 September 2013</em> From reaction of Na<sub>2</sub> [PdCl<sub>4</sub> ] with 4-R-benzaldehyde thiosemicarbazone (HL-R, R = OCH<sub>3</sub> , CH<sub>3</sub> , H, Cl<strong> </strong>and NO<sub>2</sub> ) and 2-picolinic acid in 1 : 1 : 1 mole ratio in refluxing ethanol a group of complexes of type<strong> </strong>[{Pd(NS-R)Cl}<sub>n</sub> ] is formed as minor product, along with another group of comple

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Brajesh, Kumar, K. Sangal S., and Kumar Arun. "Synthesis, magnetic and spectral studies of copper(II) complexes of 2-substituted benzaldehyde semicarbazones and thiosemicarbazones." Journal of Indian Chemical Society Vol. 86, Oct 2009 (2009): 1038–41. https://doi.org/10.5281/zenodo.5820322.

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Department of Chemistry, Meerut College, Meerut-250 001, Uttar Pradesh, India <em>Manuscript received 18 January 2006, revised 12 January 2009, accepted 8 June 2009</em> Some complexes of divalent copper have been synthesized by refluxing the metal salts with the ligands 2- chlorobenzaldehyde semicarbazone/thiosemicarbazone (cbsc, cbtsc) and 2-ethoxybenzaldehyde semicarbazone/ thiosemicarbazone (ebsc, ebtsc). All these complexes are characterized on the basis of elemental analysis, magnetic susceptibility measurements, IR and electronic spectral studies. IR spectral data of the complexes revea

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40

G., Valli, Sivakolunthu S., Muthusubramanian S., and Sivasubramanian S. "Synthesis and biological activity of copper(II) mixed ligand complexes with thiophene-2-aldehyde thiosemicarbazone as the primary ligand." Journal of Indian Chemical Society Vol. 77, May 2000 (2000): 252–53. https://doi.org/10.5281/zenodo.5868022.

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School of Chemistry. Madurai Kamaraj University, Madurai-625 021, India Department of Chemistry, S. F. R. College for Women, Sivakasi-626 123, India <em>Manuscript received 25 November 1999. revised 27 January 2000. accepted 11 February 2000</em> The complexing ability of thiophene-2-aldehyde thiosemicarbazone (L) has been investigated. Copper complexes of the type CuLL<sub>1</sub> have been prepared, where L<sub>1</sub> = salicylaldehyde/salicylaldoximelsalicylaldehyde semicarbazone/salicylaldehyde phenylhydrazone/ salicylaldehyde thiosemicarbazone/8-hydroxyquinoline/2-hydroxypyridine. The co

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Shaker, Shayma A. "Synthesis, Spectral and Magnetic Studies of Newly Mixed-Ligand Complexes of 4-Formyl-Acetanilide Thiosemicarbazone and 3,4-Dihydrocinnamic Acid with Some Metal Ions." E-Journal of Chemistry 7, s1 (2010): S594—S600. http://dx.doi.org/10.1155/2010/307842.

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New complexes with thiosemicarbazone derivative and 3, 4-dihydrocinnamic acid were prepared and characterized by elemental analysis, determination of metal, IR,1H NMR, electronic spectroscopy and magnetic measurements. The thiosemicarbazone derivative forms bidentate ligand complexes of the general formula, [M(Thz)(Caf)] where Thz = 4-formyl- acetanilide thiosemicarbazone, Caf = 3,4-dihydrocinnamic acid and M=Mn2+, Fe2+, Co2+, Ni2+, Cu2+, Zn2+, Cd2+and Pb2+. The IR and1H NMR spectra indicates that the (Thz) was coordinated with the metal ions through the N and S atoms and the (Caf) was negativ

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42

Zhang, Jie, Qing-Xia Liu, A.-Hui Li, Bao-Lin Liu, and Ruo-Jie Tao. "Synthesis, Crystal Structures and Properties of Two Heterometallic Complexes [Cu2M] (M = Cd, Mn) with a Novel Oxamato-bridged Ligand." Zeitschrift für Naturforschung B 69, no. 1 (2014): 49–54. http://dx.doi.org/10.5560/znb.2014-3127.

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Two novel trinuclear oxamato-bridged thiosemicarbazone complexes, [Cu(obte)]2Cd(DMF)2 (2) and [Cu(obte)]2Mn(DMF)2 (3) (H2obte = N-(2-benzaldehyde) oxamic acid ethyl ester thiosemicarbazone (1); DMF=dimethylformamide), have been synthesized and characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis (TGA) and single-crystal X-ray diffraction. Complexes 2 and 3 are isostructural, displaying a trinuclear structure. The luminescence properties of complexes 2 and 3 were investigated in the solid state at room temperature. The ligand 1 and its complex 2 have been evaluated f

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Nandaniya, Bansuri, Siva Prasad Das, and Darshan Jani. "New thiosemicarbazone derivatives and their Mn(II), Ni(II), Cu(II) and Zn(II) complexes: Synthesis, characterization and in-vitro biological screening." Current Chemistry Letters 12, no. 2 (2023): 289–96. http://dx.doi.org/10.5267/j.ccl.2022.12.010.

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In the present work, we synthesized new thiosemicarbazone based Schiff base ligands and their Mn(II), Ni(II), Cu(II) and Zn(II) complexes. The synthesized compounds were characterized and their antimicrobial activities were studied. Elemental analysis, IR, 1H-NMR and mass spectrometry were done to fully characterize all the compounds. The ligands and their complexes were screened for in-vitro biological study against Gram positive (Bacillus subtilis) and Gram negative (E. coli, Klebsiella pneumonia, Pseudomonas aeruginosa) bacteria for the Zone of Inhibition method. The thiosemicarbazone based

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Bikash, Kali Dey, Paul Piyali, and Bhattacharya Samaresh. "A mononuclear organoruthenium complex of a polydentate thiosemicarbazone ligand and its utilization as a building block for the synthesis of heterodinuclear Ru-Pd and Ru-Pt complexes." Journal of Indian Chemical Society Vol. 91, Mar 2014 (2014): 359–66. https://doi.org/10.5281/zenodo.5716160.

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Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata-700 032, India E-mail : samaresh_b@hotmail.com <em>Manuscript received online 24 May 2013, revised 03 June 2013, accepted 04 June 2013</em> Reaction of 2,6-diacetylpyridine thiosemicarbazone with [Ru(CO)<sub>2</sub> (PPh<sub>3</sub> )2Cl<sub>2</sub> ] in refluxing ethanol affords a mononuclear ruthenium complex [Ru], in which the thiosemicarbazone is coordinated to ruthenium as dianionic CNS-donor, along with two triphenylphosphines and a carbonyl. Using the unutilized donor atoms in the free wing of the thiosem

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Grödler, Dennis, Alexander Haseloer, Christian Tobeck, et al. "Thiosemicarbazone Complexes of Uranium(IV)." European Journal of Inorganic Chemistry 2021, no. 12 (2021): 1137–39. http://dx.doi.org/10.1002/ejic.202001118.

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Baker, Paul K., Michel J. M. Campbell, and Michael V. White. "Thiosemicarbazone organometallic complexes of molybdenum." Inorganica Chimica Acta 98, no. 2 (1985): L27—L28. http://dx.doi.org/10.1016/s0020-1693(00)84906-3.

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47

Kothari, R. "Anti-cancer activity of novel Schiff base copper (II) complex: synthesis and characterization." Journal of Optoelectronic and Biomedical Materials 15, no. 4 (2023): 127–40. http://dx.doi.org/10.15251/jobm.2023.154.127.

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A novel thiosemicarbazone substituted schiff base ligand and its Cu(II) complex have been prepared and characterized. Schiff bases are considered as an important pro ligand in coordination chemistry because they easily form stable complexes with biologically active transition metal ions. Such as Cu 2+, Zn2+, Ni2+ etc. In this paper, novel Cu (II) complexes of thiosemicarbazone ligands were synthesised by refluxing thiosemicarbazone substituted pro ligands with copper salts in 1:1 molar ratio in absolute ethanol under thermal condition at 80o c for 5-6 hour. The resulting brown coloured copper

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48

Mohamed Subarkhan, M., R. N. Prabhu, R. Raj Kumar, and R. Ramesh. "Antiproliferative activity of cationic and neutral thiosemicarbazone copper(ii) complexes." RSC Advances 6, no. 30 (2016): 25082–93. http://dx.doi.org/10.1039/c5ra26071j.

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Al-Bayati, Redha I., Ahmed AbdulAmier, Hussain Al-Amiery, and Yasmien K. Al-Majedy. "Synthesis and Antimicrobial Studies of novel metal complexes of testosterone thiosemicarbazone and methandrostenolon thiosemicarbazone." Journal of Biotechnology Research Center 4, no. 1 (2010): 73–84. http://dx.doi.org/10.24126/jobrc.2010.4.1.99.

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This work involves the chemical synthesis of novel complexes derived from steroid hormones using testosterone and methandrostenolon as starting materials. When these starting materials react with thiosemicarbazide, L1 (testosteronthiosemicarbazone ) and L2 (methandrostenolonthiosemicarbazone ) are formed, and when they react with Cr (III), Co (II), Ni (II), and Cu (II) metal ions a new complexes are formed. The chemical structures for all the prepared compounds were characterized by elemental analysis, FT-IR, and UV/visible spectra. Moreover molar ratio M:L, metal content M%, and magnetic mome

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50

Kumar, Sandeep, and Nitin Kumar. "Synthesis and biological activity of acetylacetone thiosemicarbazone and their metallic complexes." International Current Pharmaceutical Journal 2, no. 4 (2013): 88–91. http://dx.doi.org/10.3329/icpj.v2i4.14057.

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In present work, Ligand acetylacetone thiosemicarbazone and their 11 complexes of the type ML2X2, ML2X, where M = Cu(II), Cd(II), Co(II), Zn(II), Hg(II); L = acetylacetone thiosemicarbazone; X = Cl, NO3 or CH3COO; X = SO4 have been synthesized and characterized with the help of molar conductance, magnetic susceptibility measurements, infra-red and ultra-violet spectroscopy. The spectral data revealed that the thiosemicarbazone act as bidentate ligand, making use of thionic sulphur and the azomethine nitrogen atom for co-ordination to the central metal atom. All the compounds have been screen

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