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1

Shekhawat, A. S., N. P. Singh, and N. S. Chundawat. "Synthesis, Characterization and Biological Activities of Schiff's Base Metal Complexes Derived from Hydroxy Trizene and Aromatic Aldehyde." Journal of Scientific Research 14, no. 1 (2022): 387–94. http://dx.doi.org/10.3329/jsr.v14i1.54814.

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Schiff's bases are one of the important classes of the ligands, which are obtained by the condensation of amine and aromatic aldehyde. The metal complexes of Schiff's bases are widely considered because they show excellent biological activities. Such as antimicrobial, antitumor, antibacterial, and anti-fungal properties. The present studies deal with synthesis and characterization of Schiff's base transition metal complexes synthesized from general formula (ML) M=Co(II) and Cu(II); L = Schiff's base ligand derived from hydroxy trizene and aromatic aldehyde. The Synthesized complexes were chara
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2

Hussein, Kawther Adeeb, Naser Shaalan, Aliaa Khauon Lafta, and Janan Majeed Al Akeedi. "Preparation, Characterization, and Biological Activity of La(III), Nd(III), Er(III), Gd(III), and Dy(III) Complexes with Schiff Base Resulted from Reaction of 4-Antipyrinecarboxaldehyde and 2-Aminobenzothiazole." Indonesian Journal of Chemistry 24, no. 2 (2024): 358. http://dx.doi.org/10.22146/ijc.87262.

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The research includes the preparation of several complexes of the internal transition elements lanthanide (Ln = La, Nd, Er, Gd, and Dy) containing the 4f shell, with Schiff bases resulting from condensation reactions between 4-antipyrinecarboxaldehyde and 2-aminobenzothiazoles. Schiff's base was identified using FTIR spectra, UV-vis spectroscopy, elemental microanalysis CHNSO, nuclear magnetic resonance, mass spectrometry, and TGA thermal analysis. The complexes were studied and identified with elemental microanalysis CHNSO, FTIR spectroscopy, UV-vis spectroscopy, TGA thermal analysis, conduct
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3

Rasheed, Anaam M., Sinan M. M. Al-Bayati, Dr Rehab A. M. Al-Hasani, and Muna Ali Shakir. "Synthesizing, Structuring, and Characterizing Bioactivities of .Cr(III), La(III), and Ce(III) .Complexes with Nitrogen, Oxygen .and Sulpher donor bidentate Schiff base ligands." Baghdad Science Journal 18, no. 4(Suppl.) (2021): 1545. http://dx.doi.org/10.21123/bsj.2021.18.4(suppl.).1545.

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Two Schiff bases, namely, 3-(benzylidene amino) -2-thioxo-6-methyl 2,5-dihydropyrimidine-4(3H)-one (LS])and 3-(benzylidene amino)-6-methyl pyrimidine 4(3H, 5H)-dione(LA)as chelating ligands), were used to prepare some complexes of Cr(III), La(III), and Ce(III)] ions. Standard physico-chemical procedures including metal analysis M%, element microanalysis (C.H.N.S) , magnetic susceptibility, conductometric measurements, FT-IR and UV-visible Spectra were used to identify Metal (III) complexes and Schiff bases (LS) and (LA). According to findings, a [Cr(III) complex] showed six coordinated octahed
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4

D.T., Biradar, and M. B. Swami Dr. "Synthesis of Schiff's Bases from 2-Amino-4H-1, 3-Oxazine / Thiazine and Substituted Aldehydes and their Transition Metal Complexes." International Journal of Current Science Research and Review 04, no. 07 (2021): 677–83. https://doi.org/10.47191/ijcsrr/V4-i7-09.

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Abstract : Objective: Many methods can be found in literature for the synthesis a Oxazines and Thiazines. Few are reported for one-pot multi component cyclo-condensation of an alkayane urea / Thiourea and Aldehyde to 2- amino-4H-1, 3-Oxazines or Thiazines. Different catalysts are reported like Trifluoro-acetic acid, glacial acetic acid under reflux condition Mandal and Co-workers have utilized perchloric acid (HClO4) supported on silica gel as catalyst under solvent free condition ytterbium trifluorate [Yb(OTF)3] plays role of Lewis acid. It is also used in several Diel’s-Alder cyclo-add
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5

Jain, Pallavi, Dinesh Kumar, and Sulekh Chandra. "Synthesis, Spectroscopic Studies, Biological Screening and Geometrical Optimization of Bidentate Schiff's Base Ligand and their Mn(II) and Co(II) Complexes." Asian Journal of Chemistry 30, no. 7 (2018): 1664–70. http://dx.doi.org/10.14233/ajchem.2018.21347.

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6

Ganjali, Mohammad Reza, Mehdi Tavakoli, Farnoush Faridbod, Siavash Riahi, Parviz Norouzi, and Masoud Salavati-Niassari. "Interaction Study of a new Bis-Bidentate Schiff's Base with some Metal Ions and its Application in Fabrication of Sm(III) Potentiometric Membrane Sensor." International Journal of Electrochemical Science 3, no. 12 (2008): 1559–73. http://dx.doi.org/10.1016/s1452-3981(23)15539-8.

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7

Kumar, Anil, G. L. Choudhry, Hasmat Ali, Aditya Kumar, and D. K. Yadav. "Synthesis, Spectral Characterization and Microbial Activity of Ni (II) Complex with DBAP Schiff’s Base Ligand." RESEARCH REVIEW International Journal of Multidisciplinary 4, no. 4 (2019): 2465–72. http://dx.doi.org/10.31305/rrijm.2019.v04.i04.528.

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Ni (II) complexes were synthetized from the Schiff Base Ligand. The Schiff base ligand [DBAP] (L) is prepared when 3,4- dimethoxy benzaldehyde reacts with 3- amino pyridine. Elemental Analysis, FTIR, UV analysis, HRMS, Magnetic Susceptibility and Molar Conductance data have concluded information regarding the nature of bonding and geometry of the transition metal complex as well as Schiff base Ligand. The Ligand (L) acts as bidentate and co-ordinate through Nitrogen atom of imine group (azomethine group) & Nitrogen atom of the Pyridine ring. Bacterias like E.coli and Bacillus Subtilis (by
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8

SEKHAR, SRIVASTAVA, and MISHRA RICHA. "Some Mercury(II) Complexes with Bidentate Aromatic Schiff Base Ligands." Journal of Indian Chemical Society Vol. 72, Oct 1995 (1995): 719–20. https://doi.org/10.5281/zenodo.5909212.

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School of Studies in Chemistry, Jiwaji Umveristy, Gwalior-474 011 <em>Manuscript received 30 November 1993, accepted 12 April 1994</em> Some Mercury(II) Complexes with Bidentate Aromatic Schiff Base Ligands
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9

RAJIB, LAL DE, and KUMAR BHAR SANJIB. "Mixed-ligand Complexes of Cobalt(III) with Dimethylglyoxime." Journal of Indian Chemical Society Vol. 71, May 1994 (1994): 245–48. https://doi.org/10.5281/zenodo.5894738.

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Department ot Chemistry, lnorganic Chemistry Section, Jadavpur University, Calcutta-700 032 <em>Manuscript received 9 February 1993, revised 17 June 1993, accepted 23 June 1993</em> Mixed-ligand complexes of cobalt(III) of the types [Co(SBx)(DMGH)] and [Co(SBy)(DMGH)], where SBx = dianion of tetradentate Schiff base; SBy = monoanion of bidentate Schiff base; DMGH = monoanion of dimethylglyoxime, were isolated from the reaction of alcoholic suspension of cobalt(III) dimethylglyoximate dihydrate with Schiff bases in 1 : 1 and 1 : 2 molar ratios for SBx and SHy respectively. Further mixed-ligand
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10

Bipin, H. Mehta, and D. Disale Sameer. "Synthesis, physicochemical characteristics and biological activity of ruthenium(III) complexes with bidentate (N, 0) Schiff bases." Journal of Indian Chemical Society Vol. 89, Mar 2012 (2012): 315–22. https://doi.org/10.5281/zenodo.5760246.

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Department of Chemistry, University of Mumbai, Vidyanagari, Kalina, Santacruz (E), Mumbai-400 098, India <em>E-mail </em>: bipin_281050@yahoo.com <em>Manuscript received 11 November 2010, revised 05 May 2011, accepted 20 June 2011</em> The octahedral ruthenium(lll) complexes have been prepared with bidentate Schiff bases derived from condensation of 2-amino-4-methylpyridine and 4-methylaniline with aromatic aldehydes. The obtained complexes were characterized on the basis of their elemental analysis, electronic spectra, magnetic moment, <strong>IR and <sup>1</sup>H NMR</strong> spectroscopy as
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11

Labidi, N. S. "Nonlinear Optical Properties of Novel Mono-O-Hydroxy Bidentate Schiff Base: Quantum Chemical Calculations." International Journal of Metals 2013 (December 17, 2013): 1–5. http://dx.doi.org/10.1155/2013/964328.

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The semiempirical AM1 SCF method is used to study the first static hyperpolarizabilities β of some novel mono-O-Hydroxy bidentate Schiff base in which electron donating (D) and electron accepting (A) groups were introduced on either side of the Schiff base ring system. Geometries of all molecules were optimized at the semiempirical AM1. The first static hyperpolarizabilities of these molecules were calculated using Hyperchem package. To understand this phenomenon in the context of molecular orbital picture, we examined the molecular HOMO and molecular LUMO generated via Hyperchem. The study re
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12

Kigoshi, Sensho, Arihiro Kanazawa, Shokyoku Kanaoka, and Sadahito Aoshima. "Screening of metal complex catalysts using bidentate Schiff base ligands for controlled cationic polymerization of vinyl ethers using in situ complexation method." Polymer Chemistry 10, no. 30 (2019): 4209–19. http://dx.doi.org/10.1039/c9py00351g.

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13

JUI, CHAKRABORTY, and N. PATEL R. "Copper-, Cobalt- and Zinc(ll) Complexes with Monofunctional Bidentate Schiff Base and Monodentate Neutral Ligands." Journal of Indian Chemical Society Vol. 73, Apr-May 1996 (1996): 191–93. https://doi.org/10.5281/zenodo.5892379.

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Department of Chemistry, Regional Engineering College, Rourkela-769 008 <em>Manuscript received 1 September 1993, revised 18 April 1994, accepted 2 July 1994</em> Copper-, Cobalt- and Zinc(ll) Complexes with Monofunctional Bidentate Schiff Base and Monodentate Neutral Ligands.
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14

Antil, Nidhi, Mahak Dalal, K. K. Verma, and Sapana Garg. "Organyltellurium(IV) Bidentate Schiff Base Metal Complexes: Synthesis, Characterization and Biological Activities." Asian Journal of Chemistry 34, no. 8 (2022): 2008–16. http://dx.doi.org/10.14233/ajchem.2022.23679.

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Condensation of 5-(hydroxymethyl)furan-2-carboxaldehyde with 4-toluidine yielded a Schiff base (5-((p-tolylimino)methyl)furan-2-ol). A series of seven novel hexa-coordinated organyltellurium(IV) complexes of type TeCl4·HMeFPT, RTeCl3·HMeFPT and R2TeCl2·HMeFPT (where R belongs to 4-methoxyphenyl, 4-hydroxyphenyl and 3-methyl-4-hydroxyphenyl; L belongs to HMeFPT i.e. Schiff base have been prepared and characterized by molar conductance, IR, UV, 1H NMR, 13C NMR, mass spectroscopy and elemental analysis. Thus according to spectroscopic studies, Schiff base ligand functions as a NO donor bidentate
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15

Radanovic, Mirjana, Sladjana Novakovic, Marko Rodic, Ljiljana Vojinovic-Jesic, Christoph Janiak, and Vukadin Leovac. "Synthesis and structural characterization of Cd(II) complexes with 2-acetylpyridine-aminoguanidine - a novel coordination mode." Journal of the Serbian Chemical Society, no. 00 (2022): 72. http://dx.doi.org/10.2298/jsc220613072r.

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The structures of the first two complexes with bidentate coordination of aminoguanidine Schiff base, i.e., 2-acetylpyridine-aminoguanidine (L), are reported. The complex of the formula [Cd2Cl6(HL)2] (1) was obtained in the reaction of warm aqueous solutions of chloride salts of Cd(II), Zn(II), and the ligand, while the reaction of cadmium bromide and the ligand in the presence of deprotonating agent as well as ammonium thiocyanate resulted in the formation of the complex in which Schiff base has both the role of the ligand and the counterion, viz. [HL][Cd(HL)(NCS)2XY]?H2O (2), where X = Cl?/Br
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16

El‐Boraey, Hanaa A., Randa M. Abdel‐Rahman, Ensaf M. Atia, and Ohyla A. EL‐Gammal. "Synthesis, spectral and thermal studies of new Schiff base copper(II) complexes with their biological effect on Entomopathogenic nematodes." Vietnam Journal of Chemistry 60, no. 2 (2022): 140–56. http://dx.doi.org/10.1002/vjch.202100080.

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AbstractNew Schiff base ligands; (Z)‐1,5‐diphenyl‐2‐((thiophen‐2‐ylmethylene)amino)‐1H‐pyrrole‐3‐carbonitrile (L1); or (Z)‐2‐((2,4‐dihydroxybenzylidene)amino)‐1,5‐diphenyl‐1H‐pyrrole‐3‐carbonitrile (H2L2) and their Cu(II) complexes have been isolated and characterized using elemental analysis, spectral (FT‐IR, 1H NMR, UV/vis, EPR), molar conductivity and magnetic moment measurements, in addition to thermal techniques. FT‐IR spectra established that the Schiff base L1 coordinates as neutral bidentate or tridentate ligand. While the Schiff base H2L2 ligates as neutral or monobasic bidentate liga
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17

P., Viswanathamurthi, Kavitha R., and Muthukumar M. "Synthesis and characteristics of NiII and CoII complexes of Schiff base ligands containing triphenylphosphine." Journal of Indian Chemical Society Vol. 85, July 2008 (2008): 735–38. https://doi.org/10.5281/zenodo.5817131.

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Department of Chemistry, Periyar University, Salem-636 011, Tamilnadu, India <em>E-mail :</em> viswanathamurthi@yahoo.com <em>Manuscript received 22 November 2007, revised 16 April 2008, accepted 28 April 2008</em> The reactions of nickel(ll) and cobalt(ll) complexes, [MCI<sub>2</sub>(PPh<sub>3</sub>)<sub>2</sub>]&nbsp;(M = Ni or Co) with bidentate Schiff base ligands derived from acetylacetone or benzoylacetone with aniline, <em>o-</em>, <em>m</em>-nitroaniline have been carried out. The complexes were characterized by elemental analysis, spectral (IR, electronic) and cyclic voltammetric stud
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18

Dutta, Arpan, Surajit Biswas, Malay Dolai, et al. "Mononuclear manganese(iii) complexes of bidentate NO donor Schiff base ligands: synthesis, structural characterization, magnetic and catecholase studies." RSC Advances 5, no. 30 (2015): 23855–64. http://dx.doi.org/10.1039/c5ra00239g.

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19

Coles, Simon J., Michael B. Hursthouse, David G. Kelly, Andrew J. Toner, and Neil M. Walker. "Schiff base insertion in titanium alkyls; reduction of imine functions by benzyl addition." Canadian Journal of Chemistry 77, no. 12 (1999): 2095–98. http://dx.doi.org/10.1139/v99-205.

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TiBz4 reacts with N-2-fluorenyl(salicylideneimine) to afford a crystallographically characterized titanium(IV) complex containing two conventional bidentate Schiff base ligands and two O-bound ligands in which the imine function has been reduced by the addition of benzyl and hydrogen moieties.Key words: insertion, nucleophilic additions, Schiff bases, titanium
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20

Sharma, Shobhana, Poonam Yadav, Seema, Suman Kumari, and Mamta Ranka. "MICROWAVE-ASSISTED SYNTHESIS OF SCHIFF BASE AND MIXED LIGAND COMPLEXES OF Cr(III): COMPARISON WITH CONVENTIONAL METHOD AND ANTIMICROBIAL STUDIES." RASAYAN Journal of Chemistry 16, no. 02 (2023): 884–91. http://dx.doi.org/10.31788/rjc.2023.1628228.

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The Sustainable/Greener approach is prioritized over the conventional approach because of its environment-friendly, less time-consuming, less energy-consuming, less hazardous compounds synthesis, and low expenditure. Using a greener approach involving the use of microwave, Cr complexes were synthesized from Schiff base and various bidentate ligands and compared with conventional methods. Condensing 2-amino pyridine and isatin produced Schiff base. Complexes of Cr(III) were synthesized by using some bio-potent secondary ligands with Schiff base. Both Schiff base and complexes were characterized
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21

A., P. MISHRA. "Synthesis and Characterization of some Metal Ion Complexes with 8-Acetyl-7-hydroxy-4-methylcoumarin-4-chloro/nitroaniline." Journal of Indian Chemical Society Vol. 75, Apr 1998 (1998): 251–52. https://doi.org/10.5281/zenodo.5917158.

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Inorganic Research Laboratories, Department of Chemistry, Dr. H. S. Gour University, Sagar-470 003 <em>Manuscript received 9 June 1997, revised 20 August 1997, accepted 29 August 1997</em> The Schiff base compounds of 8-acetyl-7-hydroxy-4-methylcoumarin with substituted aromatic amines, viz. 4-chloroaniline and 4- nitroaniline have been synthesized and their metal complexes with Cu<sup>II</sup>, Ni<sup>II</sup> and Co<sup>II</sup> have been prepared. The Schiff bases function as bidentate anionic ligands chelating through deprotonated phenolic oxygen and azomethine nitrogen. The ligand field p
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22

Irfan, Rana Muhammad, Daochuan Jiang, Zijun Sun, Dapeng Lu, and Pingwu Du. "Enhanced photocatalytic H2 production on CdS nanorods with simple molecular bidentate cobalt complexes as cocatalysts under visible light." Dalton Transactions 45, no. 32 (2016): 12897–905. http://dx.doi.org/10.1039/c6dt02148d.

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A noble-metal-free photocatalytic hydrogen production system containing a simple bidentate cobalt Schiff base complex as the molecular cocatalyst, CdS nanorods as the photosensitizer, and ascorbic acid as the electron donor is reported in this paper.
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23

Reiss, Aurora, and Irina Dăbuleanu. "New metal(II) complexes with ceftazidime Schiff base." Annals of the University of Craiova Series Chemistry 28, no. 2 (2022): 33–42. http://dx.doi.org/10.52846/aucchem.2022.2.04.

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Schiff base obtained from ceftazidime and thiophene-2-carbaldehyde reacts with transition metallic ions Co(II) and Ni(II) to give octahedral [ML2(H2O)2]Cl2 complexes. These complexes were characterized by physicochemical and spectroscopic methods. The spectra IR indicated that the ligand is a bidentate chelating agent. The molar conductivities of the complexes measured in DMF indicated their electrolyte nature. The antibacterial activity of the metal complexes was found to be better than that of free Schiff base.
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24

Saha, Sanjoy, Dhiraj Brahman, and Biswajit Sinha. "Cu(II) complexes of an ionic liquid-based Schiff base [1-{2-(2-hydroxy benzylidene amino) ethyl}-3-methyl­imidazolium]Pf6: Synthesis, characterization and biological activities." Journal of the Serbian Chemical Society 80, no. 1 (2015): 35–43. http://dx.doi.org/10.2298/jsc140201078s.

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Two Cu(II) complexes of an ionic liquid based Schiff base 1-{2-(2-hydroxybenzylideneamino) ethyl}-3-methylimidazolium hexaflurophosphate, were prepared and characterized by different analytical and spectroscopic methods such as elemental analysis, magnetic susceptibility, UV-Vis, IR, NMR and mass spectroscopy. The Schiff base ligand was found to act as a potential bidentate chelating ligand with N, O donor sites and formed 1:2 metal chelates with Cu(II) salts. The synthesized Cu(II) complexes were tested for biological activity.
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25

Amalina, M. T., B. Hadariah, K. Karimah, and W. I. W. Nazihah. "Pd(II) Complexes with Nitrogen-oxygen Donor Ligands: Synthesis, Characterization and Catalytic Activity for Suzuki-Miyaura Cross-coupling Reaction." ASEAN Journal on Science and Technology for Development 31, no. 1 (2014): 15. http://dx.doi.org/10.29037/ajstd.24.

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Inexpensive bidentate Schiff base ligands (O1, O3) and their Pd(II) complexes (OPd1, OPd3) were successfully synthesized and characterized using CHN elemental analysis, FTIR, 1H and 13C NMR, melting point determination, molar conductivity and magnetic moment. It revealed that these Schiff bases behaved as bidentate ligands in their complexes. The spectral data indicated that the ligands co-ordinated through the phenolic oxygen and the azomethine nitrogen atoms. Magnetic momentdata suggested the existence of square planar Pd(II) complexes, while non-electrolytic behaviour indicated the absence
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26

Singh, Har Lal, and Jangbhadur Singh. "Synthesis of New Zirconium(IV) Complexes with Amino Acid Schiff Bases: Spectral, Molecular Modeling, and Fluorescence Studies." International Journal of Inorganic Chemistry 2013 (February 21, 2013): 1–10. http://dx.doi.org/10.1155/2013/847071.

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New zirconium(IV) complexes were synthesized with bidentate ligands and characterized by elemental analysis, molar conductance measurements, molecular weight determinations, IR, electronic, NMR (1H and 13C), fluorescence and molecular modeling studies. All the complexes are 1 : 2 electrolytes in nature and may be formulated as [Zr(L)2Cl2] (where L is Schiff bases of amino acids and substituted isatin). The analytical data showed that the Schiff-base ligand acts as bidentate toward zirconium ion via the azomethine nitrogen and carboxylate oxygen. The conductivity values between 8.5–12.6 Ω−1, mo
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27

Seeber, Renato, Gian Antonio Mazzocchin, Ulderico Mazzi, Fiorenzo Refosco, and Francesco Tisato. "Electrochemistry of rhenium(V) complexes with bidentate-bidentate and tridentate-bidentate schiff base ligands." Polyhedron 5, no. 12 (1986): 1975–82. http://dx.doi.org/10.1016/s0277-5387(00)87125-9.

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28

Halder, Kalpataru, and Utpal Saha. "Synthesis and Evaluation of Cr (III), Mn (III) and Fe (III) Schiff Base of Metals Complexes." Journal of Drug Delivery and Therapeutics 9, no. 3 (2019): 114–16. http://dx.doi.org/10.22270/jddt.v9i3.2609.

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A novel synthesized Schiff base metal complexes Cr (III), Mn (III) and Fe (III) of 2-hydroxy-5-chloro acetophenone 2-imino-4-phenyl thiazole were prepared by condensed from 2-hydroxy-5-chloro acetophenone and 2-amino-4-phenyl thiazole have been synthesized and characterized on the basis of elemental analysis, Infrared, 1H NMR, molar conductance and magnetic susceptibilities analysis. The Schiff base acts as a monobasic bidentate ligand commonly coordinates through the oxygen atom of phenolic OH group and the nitrogen atom of azomethine group, which is confirmed by IR spectral data. All the met
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29

S. Sharma, S., J. V. Ramani, D. P. Dalwadi, et al. "New Ternary Transition Metal Complexes of 2-{[(2-aminophenyl)imino] methyl}Phenol and Metformin: Synthesis, Characterization and Antimicrobial Activity." E-Journal of Chemistry 8, no. 1 (2011): 361–67. http://dx.doi.org/10.1155/2011/723491.

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Complexes of Co(II), Ni(II) and Cu(II) were synthesized from Schiff base 2-{[(2-aminophenyl)imino]methyl}phenol and metformin. The authenticity of the transition metal complexes were characterized by elemental analyses, conductance and magnetic susceptibility measurements, as well as spectroscopic (IR, electronic) and thermal studies. IR spectral studies revealed the existence of the ligands in the amine form in the solid state. The magnetic and electronic spectral studies suggest an octahedral geometry for all the complexes. The metformin acts as a bidentate ligand and Schiff base ofo-phynele
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30

Abdul Manan, Mohd Abdul Fatah, Hadariah Bahron, Karimah Kassim, Mohd Asrul Hafaz Mohamad, and Syed Nazmi Sayed Mohamad. "Synthesis, Characterization and Biological Activity of Nitrogen­ Oxygen-Sulfur (NOS) Transition Metal Complexes Derived from Novel S-2,4-dichlorobenzyldithiocarbazate with 5-fluoroisatin." Scientific Research Journal 7, no. 2 (2010): 67. http://dx.doi.org/10.24191/srj.v7i2.9420.

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A novel Schiff base containing nitrogen-oxygen-sulfur (NOS) donor atoms formed from the condensation reaction of S-2,4-dichlorobenzyldithiocarbazate (S-2,4BDTC) with 5-fluroisatin has been synthesized. Complexes of cobalt(II), nickel(II), copper(II), zinc(II) and cadmium(II) with this Schiff base have been prepared and characterized using elemental analysis and various physico-chemical techniques. In the cobalt(II) and nickel(II) complexes the Schiff base behaves as a uninegatively charged tridentate nitrogen-oxygen-sulfur (NOS) chelating ligand, bonding through the azomethine nitrogen, thiola
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31

Undegaonkar, Mahesh G., Sadashiv N. Sinkar, Vijay N. Bhosale, and Sunil R. Mirgane. "Solvent Free Synthesis and Characterization of Few Metal Complexes of Schiff Base Derived from 2-Amino-5, 6-dimethyl Benzimidazole and Syringaldehyde." International Journal of Pharmaceutical Sciences and Drug Research 13, no. 03 (2020): 240–45. http://dx.doi.org/10.25004/ijpsdr.2021.130301.

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A solvent-free synthesis of bidentate Schiff base ligand was carried out by treating 2-Amino-5, 6-dimethyl benzimidazole with Syringaldehyde in 1:1 molar proportion in a scientific microwave oven. The excellent yield was obtained after purification. Few metal complexes of Schiff base were synthesized by using Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II), Cd(II), and Ag(I) metal salts in microwave oven under solvent-freecondition. All metal complexes showed distinct color at the end of the reaction, and the melting point of each complex preliminary confirmed the formation of the product. A d
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32

Khalaj, Mehdi, Abolfazl Olyaei, Mahdieh Sadeghpour, Arash Lalegani, Janusz Lipkowski, and Alan J. Lough. "Platinum(II) complex with 4-nitro-N-(pyridin-2-ylmethylidene)aniline: synthesis, characterization, crystal structure and antioxidant activity." Acta Crystallographica Section C Structural Chemistry 76, no. 11 (2020): 1005–9. http://dx.doi.org/10.1107/s205322962001308x.

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A novel complex has been prepared using the (E)-4-nitro-N-(pyridin-2-ylmethylidene)aniline bidentate Schiff base ligand and PtCl2, namely, dichlorido[(E)-4-nitro-N-(pyridin-2-ylmethylidene)aniline-κ2 N,N′]platinum(II) acetonitrile hemisolvate, [PtCl2(C12H9N3O2)]·0.5CH3CN, 1. According to the X-ray measurements of the crystal structure, the PtII ion adopts a PtCl2N2 square-planar coordination. The coordination of the Schiff base ligand to the PtII ion occurs in a cyclic bidentate fashion, as a result of which a five-membered metallacycle is formed. Furthermore, in the structure of 1, the neutra
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B., H. Mehta, A. Pawanoji A., and A. Shaikh J. "Spectral and magnetic studies of cobalt(II), nickel(II) and palladium(II) metal with bidentate Schiff base ligands." Journal of Indian Chemical Society Vol. 87, Jul 2010 (2010): 779–84. https://doi.org/10.5281/zenodo.5792516.

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Department of Chemistry, University of Mumbai, Vidyanagari, Kalina, Santacruz (E), Mumbai-400 098, India <em>E-mail </em>: bipin_281050@yahoo.com <em>Manuscript received 26 June 2009, revised 7 October 2009, accepted 2 February 2010</em> The divalent metal complexes of cobalt, nickel and palladium have been prepared with bidentate Schiff bases derived by condensing 3-hydroxybenzaldehyde and 5-chlorosalicyladehyde with 4-hydroxybenzhydrazide. The complexes obtained were characterized on the basis of their elemental analysis, magnetic moment, conductance, IR, electronic, <sup>1</sup>H NMR as wel
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34

Vadivel, T., M. Dhamodaran, S. Kulathooran, M. Kavitha, and K. Amirthaganesan. "In Vitro Evaluation of Antifungal Activities by Permeation of Ru(III) Complexes Derived from Chitosan-Schiff Base Ligand." Current Applied Polymer Science 3, no. 3 (2020): 212–20. http://dx.doi.org/10.2174/2452271603666191016130012.

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Background: The transition metal complexes are derived from a natural biopolymer which is a very potent material in various research areas of study. Objective: This study aims to show the preparation of ruthenium(III) complexes from chitosan Schiff base ligand for effective application in antifungal studies. Methods: Chemical modification was carried out through a condensation reaction of chitosan with some aromatic aldehydes, which resulted in the formation of a bidentate Schiff base ligand. The Ru(III) complexes were prepared by complexation of ruthenium metal ion with bidentate ligands. The
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35

Rathod, Manik, and Vijaykumar L. Chavan. "Synthesis, Characterization and Biological Application of Rhodium, Platinum and Gold Metal Complexes Derived from Bidentate Schiff Base Ligand (Research Article)." International Journal of Pharmacy and Biological Sciences 11, no. 1 (2021): 38–47. http://dx.doi.org/10.21276/ijpbs.2021.11.1.5.

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36

Rathod, Manik, and Vijaykumar L. Chavan. "Antimicrobial Study of Synthesized and Characterized Rhodium, Platinum and Gold Metal Complexes Derived from Bidentate Schiff Base Ligand. (Research Article)." International Journal of Pharmacy and Biological Sciences 11, no. 1 (2021): 77–86. http://dx.doi.org/10.21276/ijpbs.2021.11.1.10.

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37

Singh, Kiran, Yogender Kumar, Parvesh Puri, Chetan Sharma, and Kamal Rai Aneja. "Thermal, Spectral, Fluorescence, and Antimicrobial Studies of Cobalt, Nickel, Copper, and Zinc Complexes Derived from 4-[(5-Bromo-thiophen-2-ylmethylene)-amino]-3-mercapto-6-methyl-5-oxo-[1,2,4]triazine." International Journal of Inorganic Chemistry 2012 (August 2, 2012): 1–9. http://dx.doi.org/10.1155/2012/873232.

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A new series of cobalt, nickel, copper, and zinc complexes of bidentate Schiff base derived from the condensation of 5-bromothiophene-2-carboxaldehyde with 4-amino-3-mercapto-6-methyl-5-oxo-[1,2,4]triazine were synthesized. Physical (magnetic measurements, molar conductance, TG), spectral (UV-Vis, IR, 1HNMR, fluorescence, ESR), and analytical data have established the structures of synthesized Schiff base and its metal complexes. The presence of coordinated water in metal complexes was confirmed by IR and TG studies. The Schiff base exhibits a strong fluorescence emission, contrast to this par
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38

D, Mohanambal, and Arulantony S. "SYNTHESIS, SPECTRAL CHARACTERIZATION OF SCHIFF BASE COMPLEXES BASED ON PYRIMIDINE MOIETY WITH MOLECULAR DOCKING WITH BIOMOLECULES." Asian Journal of Pharmaceutical and Clinical Research 11, no. 10 (2018): 93. http://dx.doi.org/10.22159/ajpcr.2018.v11i10.26823.

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Objective: Aim of this study is to synthesize new bidentate complexes of type MX2. nH2O with 4 amino antipyrine and ethyl 4-methyl-2-oxo-6- phenylhexahydropyrimidine-5-carboxylate (DHPM) and to characterize their properties, namely elemental analysis, conductivity measurements, and spectral characteristics and to establish the binding between the Schiff base ligands and complexes with human epidermis cancer cells (Hep-2) through molecular docking.Method: A new bidentate complexes were synthesized by condensation reaction of MX2·nH2O (M = Cu (II), Zn (II), Co (II)) with 4-aminoantipyrine (A) an
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Zhang, Sheng, Wenjiao Mo, Bing Yin, Xingqiang Lü та Jiangwei Zhang. "Designing a mononuclear DyIII single-molecule magnet (SMM) by using a N,O,N,O-based multichelating Schiff base ligand and a β-diketonate ligand". New Journal of Chemistry 43, № 1 (2019): 454–62. http://dx.doi.org/10.1039/c8nj04019b.

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Two mononuclear Ln<sup>III</sup> compounds, in which each Ln<sup>III</sup> is eight-coordinated, namely [Ln(L)(tmpd)] (Ln = Dy (1) or Er (2)), have been prepared using a multichelating Schiff base ligand (H<sub>2</sub>L) and a bidentate chelating β-diketonate ligand (tmpd).
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40

Gao, Baojiao, Liqin Zhang, and Dandan Zhang. "Effects of structures of bidentate Schiff base type bonded-ligands derived from benzaldehyde on the photoluminescence performance of polymer–rare earth complexes." Physical Chemistry Chemical Physics 20, no. 6 (2018): 4373–85. http://dx.doi.org/10.1039/c7cp07590a.

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Two kinds of bidentate Schiff base ligands derived from benzaldehyde, benzaldehyde/m-aminophenol (BAMA) type and benzaldehyde/glutamic acid (BAGL) type ligands, were synchronously synthesized and bonded on the backbone of polysulfone (PSF) through molecular design and by polymer reactions, and two functional polymers, PSF-BAMA and PSF-BAGL, were obtained.
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Shekhar, Srivastava, and Kalam Abul. "Synthesis of phenylthallium(III) dichloride and diphenylthallium(III) chloride complexes with bidentate Schiff base ligands : a photoelectron spectroscopic study." Journal of Indian Chemical Society Vol. 79, Jun 2002 (2002): 502–4. https://doi.org/10.5281/zenodo.5843401.

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Department of Chemistry, Allahabad University, Allahabad-211 002, India <em>E-mail </em>: shekharsril @rediffmail.com kalam_abul @rediffmail.com <em>Manusrcript received 20 February 2001, revised 5 September 2001. accepted 10 November 2001</em> Synthesis of phenylthallium(III) dichloride and diphenylthallium(III) chloride complexes with bidentate Schiff base ligands : a photoelectron spectroscopic study
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42

Antil, Nidhi, Manish Kumar, K. K. Verma, and Sapana Garg. "Complexes of Organyltellurium(IV) with Neutral [N,O] Donor Schiff Base Derived from Substituted Furfuraldehyde and Toluidine: Synthesis, Structural Characterization, Computational Studies and Biological Evaluation." Asian Journal of Chemistry 34, no. 5 (2022): 1125–33. http://dx.doi.org/10.14233/ajchem.2022.23615.

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Organyltellurium(IV) complexes of Schiff base (MeFPT = 4-methyl-N-((5-methylfuran-2- yl)methylene)aniline) derived from condensation reaction of 5-methyl furan-2-carboxaldehyde with p-toluidine having formula of type MeFPT·RTeCl3 and MeFPT·R2TeCl2 (R = 4-hydroxy-phenyl, 4-methoxyphenyl or 3-methyl-4-hydroxyphenyl) were reported. These complexes have been characterized by elemental analysis, IR, 1H NMR, 13C NMR, UV-Vis, DFT, molecular modelling and mass spectra. The experimental data demonstrated that formed Schiff base complexes behaved as bidentate ligand with R1TeCl3 and R2TeCl2 chelated by
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Koch, Daniela, Winfried Hoffmüller, Kurt Polborn та Wolfgang Beck. "Metallkomplexe mit biologisch wichtigen Liganden, CXXXVII [1]. Halbsandwich-Komplexe mit N, O-Chelaten und Schiff-Basen von β-Aminosäuren/ Metal Complexes of Biologically Important Ligands, CXXXVII [1]. Halfsandwich Complexes with N, O-Chelates and Schiff Bases of β-Amino Acids". Zeitschrift für Naturforschung B 56, № 4-5 (2001): 403–10. http://dx.doi.org/10.1515/znb-2001-4-513.

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Abstract β-Phenylalanine forms with chloro bridged complexes the chiral N, O-chelates Cp*Ir(Cl)(NH2CH(Ph)CH2CO2) and (p-cymene)Ru(Cl)(NH2CHPhCH2CO2) as mixture of two diastereoisomers. Similarly the palladium(III) and platinum(II) complexes (Et3P)(Cl)M(NH2CH(Ph)CH2CO2) (M = Pd, Pt) were obtained. Schiff base complexes (arene)(Cl)M(O2CC(R)=N-CH(R)CH(R)CH2CO2CH3) (arene = Cp*, p-cymene; M = Ir, Ru) were synthesized from the chloro-bridged compounds, 2-oxocarboxylates and β-alanine or β-phenylalanine methylester. The Cp*Ir complex with a tridendate dianionic Schiff base generated from pyruvate an
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Imran, Muhammad, Mitu Liviu, Shoomaila Latif, et al. "Antibacterial Co(II), Ni(II), Cu(II) and Zn(II) complexes with biacetyl-derived Schiff bases." Journal of the Serbian Chemical Society 75, no. 8 (2010): 1075–84. http://dx.doi.org/10.2298/jsc091026098i.

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The condensation reactions of biacetyl with orthohydroxyaniline and 2-aminobenzoic acid to form bidendate NO donor Schiff bases were studied. The prepared Schiff base ligands were further utilized for the formation of metal chelates having the general formula [ML2.2H2O] where M = Co(II), Ni(II), Cu(II) and Zn(II) and L = HL1 and HL2. These new compounds were characterized by conductance measurements, magnetic susceptibility measurements, elemental analysis, and IR, 1H-NMR and electronic spectroscopy. Both Schiff base ligands were found to have a mono-anionic bidentate nature and octahedral geo
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45

M., T. H. TARAFDER, and C. PAL S. "Mixed Ligand Complexes of Chromium(III) containing some Bidentate Amines and Quadridentate Schiff Base Ligands." Journal of Indian Chemical Society Vol. 72, Sep 1995 (1995): 581–84. https://doi.org/10.5281/zenodo.5909239.

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Department of Chemistry, University of Rajshahi, Rajshahi, Bangladesh <em>Manuscript received 15 July 1993, revised 27 January 1994, accepted 9 February 1994</em> A number of new mixed ligand complexes of chromium(m) using two diamines and three Schiff bases have been synthesised, having the compositions : [CrL<sub>2</sub>X<sub>2</sub>]X.nH<sub>2</sub>O, [Cr(C<sub>20</sub>H<sub>24</sub>N<sub>4</sub>\(O_2^2-\))(NCS)<sub>2</sub>]NCS, [Cr(C<sub>17</sub>H<sub>16</sub>- N<sub>2</sub>\(O_2^2-\))(NCS)<sub>2</sub>]NCS, [Cr(C<sub>17</sub>H<sub>24</sub>N<sub>4</sub>S<sub>2</sub>)(NCS)<sub>2</sub>]NCS, w
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46

Matozzo, Paola, Alessia Colombo, Claudia Dragonetti, et al. "A Chiral Bis(salicylaldiminato)zinc(II) Complex with Second-Order Nonlinear Optical and Luminescent Properties in Solution." Inorganics 8, no. 4 (2020): 25. http://dx.doi.org/10.3390/inorganics8040025.

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Whereas there is an increasing amount of reports on the second-order nonlinear optical (NLO) and luminescence properties of tetradentate [N2O2] Schiff base–zinc complexes, the study of zinc complexes having two bidentate [NO] Schiff-base ligands is relatively unexplored from an NLO point of view. This work puts in evidence that the known chiral bis{2-[(R)-(+)-1-phenylethyliminomethyl]phenolato-N,O}zinc(II) complex is a fascinating multifunctional molecular inorganic–organic hybrid material characterized by interesting second-order NLO and luminescent properties in solution. The emissive proper
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Hari, S. Yadav, and L. Kumawat Gopal. "Synthesis, Spectroscopic, Biological, and Theoretical Evaluation of Novel Zirconium (IV) N, O Donor Amino Acid Schiff Base Complexes." Chemistry Research Journal 8, no. 1 (2023): 12–22. https://doi.org/10.5281/zenodo.11296500.

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<strong>Abstract </strong>A series of<strong> </strong>novel dichlorozirconium (IV) Schiff bases complexes [ZrCl<sub>2</sub> (L)<sub>2</sub>] (LH = N, O donor Schiff base derived by the condensation of 2-Acetyl-5-methylfuran &amp; 2-acetyl-4-methyl thiophene with amino acids) were synthesized by the reaction of zirconium (IV) chloride and sodium salt of an N, O donor Schiff base ligand and characterized. The authenticity of all the synthesized ligands and their Zr (IV) complexes had been elucidated by microanalysis, various spectroscopic techniques like FT-IR, <sup>1</sup>H NMR, <sup>13</sup>C
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48

Singh, Kamlesh Kumar, and Shamshad Ahmad Khan. "Synthesis and characterization of cobalt(II) complexes with bidentate Schiff base ligand." Research Journal of Chemistry and Environment 25, no. 10 (2021): 76–79. http://dx.doi.org/10.25303/2510rjce7679.

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The coordination complexes of Co(II) have been prepared from bidentate Schiff base. The Schiff base ligand was synthesized by the condensation of 4- hydroxy-3-methoxybenzaldehyde and 2-aminobenzhydroxamic acid in an alcoholic medium at room temperature. The ligand and cobalt (II) complexes were characterized by elemental analysis, molar conductance, electronic spectra, IR spectra, NMR spectra, electrical conductivity and magnetic susceptibility. The cobalt (II) complexes are colored and stable in air. In the metal complexes, the metal -ligand ratio was found to be 1:2. A sharp band at 1630 cm-
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Tang, Li-Hua, Fule Wu, Hui Lin, Ai-Quan Jia, and Qian-Feng Zhang. "Syntheses and crystal structures of ruthenium complexes with bidentate salicylaldiminato and dithiophosphato ligands." Zeitschrift für Naturforschung B 73, no. 5 (2018): 329–35. http://dx.doi.org/10.1515/znb-2018-0045.

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AbstractTreatment of the bidentate Schiff base 2-[(2,6-diisopropyl-phenylimino)-methyl]-phenol (HL1) with one equivalent of (Et4N)[RuCl4(MeCN)2] in the presence of triethylamine afforded (Et4N)[RuCl3(κ2-N,O-L1)(MeCN)] (1), which reacted with two equivalents of K[S2P(OiPr)2] to produce a neutral ruthenium(III) complex [Ru(κ2-N,O-L1){η2-S2P(OiPr)2}2] (2) bearing both salicylaldiminato and dithiophosphato ligands. Reactions of the bidentate Schiff bases 2-[(3-chloro-phenylimino)-methyl]-phenol (HL2) and 2-[(2,4,6-trimethyl-phenylimino)-methyl]-phenol (HL3) with one equivalent of [Ru(CO)2Cl2] in t
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Abdul Manan, Mohd Abdul Fatah, Hadariah Bahron, Karimah Kassim, Mohd Asrul Hafiz Muhamad, and Syed Nazmi Sayed Mohamad. "Synthesis, Characterization and Biological Activity of NitrogenOxygen-Sulfur (NOS) Transition Metal Complexes Derived from Novel S-2,4-dichlorobenzyldithiocarbazate with 5-fluoroisatin." Scientific Research Journal 7, no. 2 (2010): 67. http://dx.doi.org/10.24191/srj.v7i2.5027.

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A novel Schiff base containing nitrogen-oxygen-sulfur (NOS) donor atoms formed from the condensation reaction of S-2,4- dichlorobenzyldithiocarbazate (S-2.4BDTC) with 5-fluroisatin has been synthesized. Complexes of cobalt(ll), nickel(ll), copper(ll), zinc(ll) and cadmium(ll) with this Schiff base have been prepared and characterized using elemental analysis and various physico-chemical techniques. In the cobalt(ll) and nickel(II) complexes the SchifJbase behaves as a uninegatively charged tridentate nitrogen-oxygen-sulfur (NOS) chelating ligand, bonding through the azomethine nitrogen, thiola
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