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Journal articles on the topic 'Zn(II) Spectroscopic'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

Al-Rasbi, Nawal K., Bushra AlWihibi, and Nada AlNofali. "Synthesis and spectroscopic properties of a fluorosensor for Zn2+ ions." Sultan Qaboos University Journal for Science [SQUJS] 19, no. 1 (2014): 8. http://dx.doi.org/10.24200/squjs.vol19iss1pp8-14.

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The new Schiff base ligand L: (E)-N'-(pyridin-2-ylmethylene)acetohydrazide, was synthesized, and its reaction with Zn(II) ions form the complex: [ZnL2](ClO4)2, as confirmed by X-ray crystallography. This complex is stable in polar and non-polar solvents as proven by NMR. A significant enhancement in the fluorescence was observed from L upon coordination to Zn(II) ions over other transition metals such as Fe(II), Co(II), Ni(II), Cu(II), Cd(II) and Ag(I). These results suggest that L can be used as a selective flourosensor for the detection of Zn(II) ions.

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2

Spinu, Cezar, Angela Kriza, Aurelia Meghea, and Cristian Tigae. "STUDIES ON N-[2-THIENYLMETHYLIDENE)-2-AMINOPYRIDINE COMPLEXES OF Fe(II), Co(II), Ni(II), Cu(II), Zn(II) AND Cd(II)." SOUTHERN BRAZILIAN JOURNAL OF CHEMISTRY 9, no. 10 (2001): 17–22. http://dx.doi.org/10.48141/sbjchem.v9.n10.2001.20_2001.pdf.

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Metal complexes ML2Cl2, where M is Fe(II), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) and L is Schiff base formed by condensation of 2-thiophenecarboxaldehyde and 2-aminopyridine, N-[2-thienylmethylidene]-2-arninopyridine (TNAPY), have been prepared and characterized by elemental analysis, magnetic and spectroscopic measurements. IR and NMR spectra show that the nitrogen of the azomethyne group and the sulphur of the thiophene ring take part in coordination. Magnetic, ESR and electronic spectral studies show a distorted octahedral structure for the Fe(II), Co(II), Ni(II) and Cu(II) complexes an

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3

Odunola, Olusegun A. "Spectroscopic and Magnetic Properties of Zn(II), Cd(II) and Hg(II) Carboxylates." Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 23, no. 8 (1993): 1241–49. http://dx.doi.org/10.1080/15533179308016683.

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4

Mansour, Ahmed M. "Terpyridine Zn(II) azide compounds: Spectroscopic and DFT calculations." Journal of Molecular Structure 1242 (October 2021): 130737. http://dx.doi.org/10.1016/j.molstruc.2021.130737.

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5

Konstantinovic, Sandra, Blaga Radovanovic, Zivojin Cakic, and Vesna Vasic. "Synthesis and characterization of Co(II), Ni(II), Cu(II) and Zn(II) complexes with 3-salicylidenehydrazono-2-indolinone." Journal of the Serbian Chemical Society 68, no. 8-9 (2003): 641–47. http://dx.doi.org/10.2298/jsc0309641k.

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Complexes of Co(II), Ni(II), Cu(II) and Zn(II) with 3-salicylidenehydrazono-2-indolinone were prepared. Their structure was established to be [MLCl].Cl by using elemental analysis and molar conductivity, as well as AA, FTIR, UV/VIS and 1H-NMR spectroscopic methods. The spectral studies indicated a square-planar geometry for the Ni(II) and Cu(II) complexes and a tetrahedral one for the Co(II) and Zn(II) complexes. The complexes were tested for antibacterial activity against Staphylococcus aureus, Enterococcus D, Proteus mirabilis, Escherichia coli, Bacillus anthracis, Pseudomonas aeruginosa and

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6

Guney Eskiler, Gamze, and Ibrahim Kani. "In vitro apoptotic effect of Zinc(II) complex with N-donor heterocyclic ligand on breast cancer cells." Turkish Journal of Biochemistry 44, no. 6 (2019): 761–68. http://dx.doi.org/10.1515/tjb-2019-0013.

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Abstract Background The synthesis of new ligand and transition metal complexes have drawn great attention in cancer treatment due to excellent DNA cleavage activities and high antitumor activity. Objective The purpose of this study was to synthesize a new Zn(II) complex with 2,2′-bipyridine (bpy) ligand, [Zn(bpy)2(H2O)]2(ClO4), and to investigate the potential therapeutic activity against breast cancer. Materials and methods Zn(II) complex was obtained and structurally characterized using crystallography and other spectroscopic methods. The cytotoxic and apoptotic effects of Zn(II) complex on

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7

Journal, Baghdad Science. "Preparation and Characterization of Cu (II), Mn(II) and Zn(II)complexes with new sulfamethoxazole Compounds." Baghdad Science Journal 14, no. 3 (2017): 575–81. http://dx.doi.org/10.21123/bsj.14.3.575-581.

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Acetophenone sulfamethoxazole and 3-Nitrobenzophenone sulfamethoxazole were prepared from the reaction of sulfamethoxazole with two ketones. The prepared ligands were identified by (C.H.N) analysis and UV-VIS, FT-IR spectroscopic techniques. Metal complexes of the two ligands were prepared in an aqueous alcohol with Zn (II), Mn (II) and Cu (II) ions with a molar ratio1:1. The proposed general formula for the resulting complexes was [ML.CL2.H2O]H2O .The complexes were characterized by (C.H.N) technique , spectroscopic methods ,conductivity, atomic absorption ,magnetic susceptibility measurement

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8

Turan, Nevin, Kenan Buldurun, Naki Çolak, and İsmail Özdemir. "Preparation and spectroscopic studies of Fe(II), Ru(II), Pd(II) and Zn(II) complexes of Schiff base containing terephthalaldehyde and their transfer hydrogenation and Suzuki-Miyaura coupling reaction." Open Chemistry 17, no. 1 (2019): 571–80. http://dx.doi.org/10.1515/chem-2019-0074.

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AbstractThis study describes synthesis, spectroscopic characterization and catalytic activities of Fe(II), Ru(II), Pd(II) and Zn(II) complexes with a novel Schiff base ligand (L) derived from methyl 2-amino-5,5,7,7-tetramethyl-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate and terephthalaldehyde. We used spectroscopic techniques including IR, UV-Vis, 1H-NMR, 13C-NMR, elemental analysis and also mass analysis and magnetic susceptibility measurements to identify the products. The Pd(II) complex was used as a potential catalyst for Suzuki-Miyaura coupling reaction of some aryl halides under op

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9

Yan, Yupeng, Biao Wan, Yanyi Zhang, Limei Zhang, Fan Liu, and Xionghan Feng. "In situ ATR-FTIR spectroscopic study of the co-adsorption of myo-inositol hexakisphosphate and Zn(II) on goethite." Soil Research 56, no. 5 (2018): 526. http://dx.doi.org/10.1071/sr17333.

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The coexistence of myo-inositol hexakisphosphate (IHP; phytate) and aqueous Zn(II) may affect the adsorbed amounts and speciation of each other on minerals, which can further influence the transport and fate of IHP and Zn(II) in soils and sediments. The objective of this study was to investigate the co-adsorption mechanism of IHP and Zn(II) on goethite (Gt). A combination of macroscopic experiments and in situ attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) was used to investigate the co-adsorption of IHP and Zn(II) at the Gt–water interface in the pH range of 3

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10

Salman, Mahmoud, Moamen S. Refat, Sabry A. El-Korashy, and Mostafa A. Hussien. "Synthesis and spectroscopic characterization of Zn(II), Cd(II), and Hg(II) ciprofloxacin complexes." Russian Journal of General Chemistry 84, no. 9 (2014): 1841–46. http://dx.doi.org/10.1134/s1070363214090345.

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11

Osowole, Aderoju A., Ingo Ott, and Oladunni M. Ogunlana. "Synthesis, Spectroscopic, Anticancer, and Antimicrobial Properties of Some Metal(II) Complexes of (Substituted) Nitrophenol Schiff Base." International Journal of Inorganic Chemistry 2012 (January 23, 2012): 1–6. http://dx.doi.org/10.1155/2012/206417.

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The Schiff base, 2-[(2,3-dihydro-1H-inden-4-ylimino)methyl]-5-nitrophenol coordinates to Mn(II), Cu(II), Zn(II), and Pd(II) ions through the phenolic O and imine N atoms. The complexes are characterized by physicochemical and spectroscopic methods. The metal complexes formed as [ML2]xH2O with exception of the Cu(II) complex which is anhydrous. Spectroscopic data corroborate the adoption of a four-coordinate, tetrahedral geometry for the Mn(II), and Zn(II) complexes, and a four-coordinate, square planar geometry for the Cu(II) and Pd(II) complexes. None is an electrolyte in DMSO. The in vitro a

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12

Ha, Jeong-Hyon, Hyun Sun Cho, Dongho Kim, Jong-Cheol Lee, Tae-Young Kim, and Young Key Shim. "Time-Resolved Spectroscopic Study on Photoinduced Electron-Transfer Processes in Zn(II)porphyrin-Zn(II)chlorin-Fullerene Triad." ChemPhysChem 4, no. 9 (2003): 951–58. http://dx.doi.org/10.1002/cphc.200300695.

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13

Chandra, Sulekh, Shikha Parmar, and Yatendra Kumar. "Synthesis, Spectroscopic, and Antimicrobial Studies on Bivalent Zinc and Mercury Complexes of 2-Formylpyridine Thiosemicarbazone." Bioinorganic Chemistry and Applications 2009 (2009): 1–6. http://dx.doi.org/10.1155/2009/851316.

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A series of metal complexes of Zn(II) and Hg(II) having the general composition [where L = 2-formylpyridine thiosemicarbazone; M = Zn(II) and Hg(II); X = , and ] have been prepared and characterized by elemental chemical analysis, molar conductance, and spectral (IR and mass) studies. The IR spectral data suggests the involvement of sulphur and azomethane nitrogen in coordination to the central metal ion. On the basis of spectral studies, a tetrahedral geometry has been assigned for Zn(II) and Hg(II) complexes. The free ligand and its metal complexes have been tested in vitro against a number

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14

Usman, Mohammad, Rais Ahmad Khan, Ali Alsalme, et al. "Structural, Spectroscopic, and Chemical Bonding Analysis of Zn(II) Complex [Zn(sal)](H2O): Combined Experimental and Theoretical (NBO, QTAIM, and ELF) Investigation." Crystals 10, no. 4 (2020): 259. http://dx.doi.org/10.3390/cryst10040259.

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The Zn(II) complex of salen-like scaffold [Zn(sal)](H2O) was synthesized and characterized by elemental analysis, IR, UV–Vis, and 1H-NMR spectroscopic techniques. The structure of complex was confirmed by single crystal X-ray diffraction studies. In the complex, Zn (II) was placed in the inner N2O2 compartment of the salen scaffold in square planar geometry and crystallized in the monoclinic space group P21/n. DFT and TDDFT calculations were performed to reproduce the experimentally observed structural and spectroscopic (IR and UV–vis) findings. The bonding of the Zn(II) framework in the [Zn(s

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15

Annigeri, Satish M., M. P. Sathisha, and Vidyanand K. Revankar. "Spectroscopic studies of bridged binuclear complexes of Co(II), Ni(II), Cu(II) and Zn(II)." Transition Metal Chemistry 32, no. 1 (2007): 81–87. http://dx.doi.org/10.1007/s11243-006-0131-0.

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16

Lebedeva, Natalia Sh, Natalia A. Pavlycheva, Elena V. Parfenyuk, Anatoly I. Vyugin, and Elena A. Malkova. "Crystallosolvates of Zn(II)-tetra-tert-butylphthalocyanine with organic ligands: spectroscopic and thermogravimetric studies." Journal of Porphyrins and Phthalocyanines 07, no. 08 (2003): 558–64. http://dx.doi.org/10.1142/s1088424603000707.

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Molecular complexes of Zn (II)-tetra-tert-butylphthalocyanine ( Zn ( tert - Bu )4 Pc ) with organic ligands (piperidine, morpholine, 1,4-dioxane) were obtained. The stoichiometry, energetic stability and decomposition temperature of the complexes were determined. The effect of specific solvation interactions with the organic solvents on the polymorphic state of Zn ( tert - Bu )4 Pc was determined.

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17

Mendiguchia, Barbara Sanz, Iolinda Aiello, and Alessandra Crispini. "Zn(ii) and Cu(ii) complexes containing bioactive O,O-chelated ligands: homoleptic and heteroleptic metal-based biomolecules." Dalton Transactions 44, no. 20 (2015): 9321–34. http://dx.doi.org/10.1039/c5dt00817d.

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Zn(ii) or Cu(ii) highly stable complexes with chelated O,O-donor ligands from natural extractions give rise to drug delivery systems, new biologically active complexes and potential diagnostic agents due to their intrinsic spectroscopic properties.

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18

Sen, Pinar, S. Zeki Yildiz, Göknur Yasa Atmaca, and Ali Erdogmus. "Five-nuclear phthalocyanine complex bearing terpyridine zinc complex: Synthesis, and photophysicochemical studies." Journal of Porphyrins and Phthalocyanines 22, no. 01n03 (2018): 181–88. http://dx.doi.org/10.1142/s1088424618500116.

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The context of this study is based on the synthesis of tetrakis{4-(2-([2,2[Formula: see text]:6[Formula: see text],2[Formula: see text]-terpyridine]Zn(II)-4[Formula: see text]-yl(methyl)amino)ethoxy)}phthalocyaninato zinc (II) (3) bearing four terpyridine-Zn(II) complexes that are directly linked through oxygen bridges to the macrocyclic core in order to create new supramolecular assemblies. The target phthalocyanine (3) was obtained by cyclotetramerization reaction of terpyridine-Zn (II) complex substituted phthalonitrile (2). All novel compounds synthesized in this study were fully character

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19

Takamuku, Toshiyuki, Mikito Ihara, Toshio Yamaguchi, and Hisanobu Wakita. "Raman Spectroscopic and X-ray Diffraction Studies on Concentrated Aqueous Zinc (II) Bromide Solution at High Temperatures." Zeitschrift für Naturforschung A 47, no. 3 (1992): 485–92. http://dx.doi.org/10.1515/zna-1992-0308.

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Abstract Raman and X-ray scattering experiments have been performed on an aqueous zinc (II) bromide solution with molar ratio [ H2 0] / [ ZnBr2 ] =10 at 25 to 140 °C. The intensity of the totally symmetric Zn - Br stretching vibration (ν1) for the dibromozinc(II) complex increased with increasing temperature while that for the tetrabromo complex decreased. A broad band assigned to the symmetric Zn - O stretching vibration ( ν1 ) for the aqua zinc (II) ion decreased in intensity with increasing temperature. The X-ray diffraction data revealed that the average number of the Zn - Br interactions

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20

Journal, Baghdad Science. "Preparation, Characterization and Spectroscopic Study of New Tridentate Schiff Base and its Cu(II), Ni(II) and Zn(II) Metal Complexes." Baghdad Science Journal 10, no. 1 (2013): 198–206. http://dx.doi.org/10.21123/bsj.10.1.198-206.

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A new tridentate ligand has been synthesized derived from phenyl(pyridin-3-yl)methanone. Three coordinated metal complexes were prepared by complexation of the new ligand with Cu(II), Ni(II) and Zn(II) metal salts. The new Schiff base “benzyl -2-[phenyl(pyridin-3-yl)methylidene]hydrazinecarbodithioate” and the new metal complexes were characterized using various physico-chemical and spectroscopic techniques. From the analysis results, the expected structure to the metal complexes are octahedral in geometry for Cu(II) complex, square planner for Ni(II) and tetrahedral for Zn(II) complex. The ne

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21

Ajibade, Peter A., Fartisincha P. Andrew, Nandipha L. Botha, and Nolwazi Solomane. "Synthesis, Crystal Structures and Anticancer Studies of Morpholinyldithiocarbamato Cu(II) and Zn(II) Complexes." Molecules 25, no. 16 (2020): 3584. http://dx.doi.org/10.3390/molecules25163584.

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Cu(II) and Zn(II) morpholinyldithiocarbamato complexes, formulated as [Cu(MphDTC)2] and [Zn(μ-MphDTC)2(MphDTC)2], where MphDTC is morpholinyldithiocarbamate were synthesized and characterized by elemental analysis, spectroscopic techniques and single-crystal X-ray crystallography. The molecular structure of the Cu(II) complex revealed a mononuclear compound in which the Cu(II) ion was bonded to two morpholinyl dithiocarbamate ligands to form a four-coordinate distorted square planar geometry. The molecular structure of the Zn(II) complex was revealed to be dinuclear, and each metal ion was bon

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22

Çakır, Volkan. "Functional chalcone-substituted tetrakis-metallophthalocyanines: Synthesis and spectroscopic characterization." Journal of Chemical Research 44, no. 3-4 (2019): 148–51. http://dx.doi.org/10.1177/1747519819893047.

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In this study, a new phthalonitrile derivative, ( E)-4-(3-(3-(3-methoxyphenyl)acryloyl)phenoxy)phthalonitrile, and four peripherally ( E)-4-(3-(3-(3-methoxyphenyl)acryloyl)phenoxy) tetrasubstituted new Ni(II), Zn(II), Co(II), and Cu(II) phthalocyanine derivatives are synthesized and characterized. ( E)-4-(3-(3-(3-Methoxyphenyl)acryloyl)phenoxy)phthalonitrile is synthesized by heating ( E)-1-(3-hydroxyphenyl)-3-(3-methoxyphenyl)prop-2-en-1-one and 4-nitrophthalonitrile in the presence of K2CO3 in dry DMF at 60°C for 96 h. The metallophthalocyanines are prepared by cyclotetramerization of ( E)-4

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23

Brahman, Dhiraj, and Biswajit Sinha. "Synthesis, characterization and antibacterial activities of Zn(II) and Cd(II) complexes of a quinazoline-4(3H)-one Schiff base." Journal of the Serbian Chemical Society 79, no. 12 (2014): 1505–13. http://dx.doi.org/10.2298/jsc140130093b.

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Zn(II) and Cd(II) complexes of a Schiff base derived from quinazoline-4(3H) one and 2-formylphenoxy acetic acid were prepared and characterized by elemental and different spectroscopic (IR, UV-Visible and NMR) analyses. The elemental analysis indicated the formation of the complexes: [ML(AcO)].H2O, where M stands for Zn(II) and Cd(II) and L stands for quinazoline-4(3H)-one Schiff base. The molar conductivities of the prepared complexes revealed their non-electrolytic nature. The complexes were also investigated for their antimicrobial activities by using turbidometric assay method.

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24

Refat, Moamen S., Deo Nandan Kumar, and Robson F. De Farias. "Spectroscopic and thermal investigations of Cu(II), Zn(II), Cd(II), Pb(II) and Al(III) caproates." Journal of Coordination Chemistry 59, no. 16 (2006): 1857–71. http://dx.doi.org/10.1080/00958970600662932.

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25

Veselinović, Aleksandar M., and Goran M. Nikolić. "Influence of Zn(II) Ion on the Autoxidation of Pyrogallol and Gallic Acid in Weakly Acidic Aqueous Solutions / Uticaj Zn(II) jona na autooksidaciju pirogalola i galne kiseline u slabo kiselim vodenim rastvorima." Acta Facultatis Medicae Naissensis 32, no. 2 (2015): 127–35. http://dx.doi.org/10.1515/afmnai-2015-0013.

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SUMMARY Pyrogallol-type phenolic compounds are widespread in nature and may have significant impact on human health. As Zn(II) ion was proved to be capable of enhancing some biological activities of pyrogallol-type natural phenolic compounds, we decided to study its influence on the autoxidation of pyrogallol and gallic acid in weakly acidic aqueous solutions. UV-Vis spectrophotometric measurements showed that autoxidation of pyrogallol was initiated by the influence of Zn(II) ions at pH 5.5 and pH 6.5. The differences in UV-Vis spectra of the first autoxidation products resolved by the applic

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26

Lapouge, Christine, Laetitia Dangleterre, and Jean-Paul Cornard. "Spectroscopic and Theoretical Studies of the Zn(II) Chelation with Hydroxyflavones." Journal of Physical Chemistry A 110, no. 45 (2006): 12494–500. http://dx.doi.org/10.1021/jp064362q.

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27

Valduga, Giuliana, Elena Reddi, and Giulio Jori. "Spectroscopic studies on Zn(II)-phthalocyanine in homogeneous and microheterogeneous systems." Journal of Inorganic Biochemistry 29, no. 1 (1987): 59–65. http://dx.doi.org/10.1016/0162-0134(87)80012-0.

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28

Kafarska, Karolina, Michał Gacki, and Wojciech M. Wolf. "Synthesis, Spectroscopic, and Thermal Investigations of Metal Complexes with Mefenamic Acid." Journal of Chemistry 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/6172626.

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The novel metal complexes with empirical formulae M(mef)2·nH2O (where M = Mn(II), Co(II), Ni(II), Cu(II), Zn(II), and Cd(II); mef is the mefenamic ligand) were synthesized and characterized by elemental analysis, molar conductance, FTIR-spectroscopy, and thermal decomposition techniques. All IR spectra revealed absorption bands related to the asymmetric (νas) and symmetric (νs) vibrations of carboxylate group. The Nakamoto criteria clearly indicate that this group is bonded in a bidentate chelate mode. The thermal behavior of complexes was studied by TGA methods under non-isothermal condition

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29

Smékal, Zdeněk, Zdeněk Trávníček, Milan Nádvorník, Zdeněk Šindelář, Roman Klička та Jaromír Marek. "Synthesis and Characterization of (μ-Oxalato)nickel(II), Copper(II) and Zinc(II) Complexes with Chelating Polyamines". Collection of Czechoslovak Chemical Communications 63, № 6 (1998): 783–92. http://dx.doi.org/10.1135/cccc19980783.

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New binuclear complexes of the type [(Ni(aep)2)2ox](ClO4)2 (1) (aep = 2-(2-aminoethyl)pyridine, H2ox = oxalic acid), [(Ni(ept)H2O)2ox](NO3)2 (2), (ept = N-(2-aminoethyl)-1,3-diaminopropane), [(Cu(aep)H2O)2ox](ClO4)2 (3), [(Cu(ept))2ox](NO3)2·H2O (4) and [(Zn(L))2ox](ClO4)2·nH2O (L = ept, n = 0 (5); L = N,N'-bis(3-aminopropyl)-1,2-diaminoethane (3,2,3-tet), n = 4 (6)) have been prepared and studied by IR and UV-VIS spectroscopies. Spectroscopic data are consistent with oxalate-bridged structures between six-coordinate (N4O2 or N3O3) Ni(II) (compounds 1 and 2), (N2O3 or N3O2) Cu(II) (compounds 3

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30

Gull, Parveez, and Athar Adil Hashmi. "Synthesis, XRD and spectroscopic characterization of pharmacologically active Cu(II) and Zn(II) complexes." Journal of Molecular Structure 1139 (July 2017): 264–68. http://dx.doi.org/10.1016/j.molstruc.2017.03.053.

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31

Basu, Arghya, and Gopal Das. "Zn(II) and Hg(II) complexes of naphthalene based thiosemicarbazone: Structure and spectroscopic studies." Inorganica Chimica Acta 372, no. 1 (2011): 394–99. http://dx.doi.org/10.1016/j.ica.2011.01.097.

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32

Ghose, Ranjana, and Rajesh Kumar. "Powder diffraction study of some mixed ligand complexes of Mn(II), Ni(II), Cu(II), Zn(II), and Cd(II)." Powder Diffraction 26, no. 1 (2011): 82–87. http://dx.doi.org/10.1154/1.3543995.

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The mixed ligand complexes of manganese(II), nickel(II), copper(II), zinc(II), and cadmium(II) involving aspartic acid and benzoic acid have been synthesized. The complexes were studied by various spectroscopic techniques such as infrared, electronic, X-ray diffraction, and magnetic measurements. The complexes were found to have octahedral geometry. The X-ray powder diffraction results show that the crystal systems of Mn(II)-Asp-Ben complex are hexagonal, and Ni(II)-Asp-Ben, Cu(II)-Asp-Ben, Zn(II)-Asp-Ben, and Cd(II)-Asp-Ben complexes are found to be triclinic. The value of unit-cell parameter

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33

Asadi, Mozaffar, Hajar Sepehrpour, and Khosro Mohammadi. "Tetradentate schiff base ligands of 3,4- diaminobenzophenone: Synthesis, characterization and thermodynamics of complex formation with Ni(II), Cu(II) and Zn(II) metal ions." Journal of the Serbian Chemical Society 76, no. 1 (2011): 63–74. http://dx.doi.org/10.2298/jsc100104004a.

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Some new symmetrical diimino tetradentate Schiff base ligands were synthesized by the reaction of 3,4-diaminobenzophenone with salicylaldehyde derivatives, such as [N,N?-bis(4-methoxysalicylaldehyde)- 3,4-diaminobenzophenone] (L1), [N,N?-bis(5-methoxysalicylaldehyde)- 3,4-diaminobenzophenone] (L2), [N,N?-bis(5-bromosalicylaldehyde)-3,4- diaminobenzophenone] (L3), [N,N?-bis(5-nitrosalicylaldehyde)-3,4- diaminobenzophenone] (L4). Additionally, a tetradentate Schiff base ligand [N,N?-bis(3-methoxysalicylaldehyde)-3,4-diaminobenzophenone] (L5), was synthesized. All the Schiff bases and their Ni(II

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34

Tajmir-Riahi, H. A. "Carbohydrate metal ion complexes. Interaction of D-glucono-1,5-lactone with Zn(II), Cd(II), and Hg(II) ions in the solid and aqueous solution, studied by 13C-NMR, FT-IR, and X-ray powder diffraction measurements." Canadian Journal of Chemistry 67, no. 4 (1989): 651–54. http://dx.doi.org/10.1139/v89-098.

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D-Glucono-1,5-lactone interaction with zinc group metal ions has been studied in aqueous solution and solid salts of the type Zn(D-gluconate)2.2H2O, Cd(D-gluconate)2 and Hg(D-gluconate)2 have been isolated. These metal sugar salts were characterized by elemental analysis, 13C-NMR, FT-IR spectroscopy, and X-ray powder diffraction measurements.X-ray powder diffraction diagrams and other spectroscopic evidence showed that Zn(D-gluconate)2.2H2O is isomorphous with the structurally identified Mn(D-gluconate)2.2H2O, suggesting a similar metal–sugar binding mode, through a carboxylate oxygen atom (O-

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35

Karcz, Dariusz, Karolina Starzak, Ewa Ciszkowicz, et al. "Novel Coumarin-Thiadiazole Hybrids and Their Cu(II) and Zn(II) Complexes as Potential Antimicrobial Agents and Acetylcholinesterase Inhibitors." International Journal of Molecular Sciences 22, no. 18 (2021): 9709. http://dx.doi.org/10.3390/ijms22189709.

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A series of coumarin-thiadiazole hybrids and their corresponding Cu(II) and Zn(II) complexes were synthesized and characterized with the use of spectroscopic techniques. The results obtained indicate that all the coumarin-thiadiazole hybrids act as bidentate chelators of Cu(II) and Zn(II) ions. The complexes isolated differ in their ligand:metal ratio depending on the central metal. In most cases, the Zn(II) complexes are characteristic of a 1:1 ligand:metal ratio, while in the Cu(II) complexes the ligand:metal ratio is 2:1. All compounds were tested as potential antibacterial agents against G

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36

Bajju, Gauri Devi, Sujata Kundan, Madhulika Bhagat, Deepmala Gupta, Ashu Kapahi, and Geeta Devi. "Synthesis and Spectroscopic and Biological Activities of Zn(II) Porphyrin with Oxygen Donors." Bioinorganic Chemistry and Applications 2014 (2014): 1–13. http://dx.doi.org/10.1155/2014/782762.

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Results of investigation of the physicochemical properties of zinc complexes containing substituted phenols as axial ligand having general formula [X-Zn-t(p-CH3) PP] [where X = different phenolates as axial ligand] in impurity-free organic solvent are presented. The four-coordinated zinc porphyrin accepts one axial ligand in 1 : 1 molar ratio to form five-coordinated complex, which is purified by column chromatography and characterized by physicochemical, biological evaluation and TGA/DTA studies. Absorption spectra show two principal effects: a red shift for phenols bearing substituted electr

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37

Anusuya, A. M., B. S. Krishna, S. B. Benaka Prasad, K. Yogesh Kumar, R. Raveesha, and M. K. Prashanth. "Novel Heterocyclic Transition Metal Complexes: Synthesis, Characterization, Antimicrobial and Anticancer Activity." Asian Journal of Chemistry 33, no. 10 (2021): 2519–24. http://dx.doi.org/10.14233/ajchem.2021.23519.

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A heterocyclic ligand, 5-(2-(4-chlorophenyl)-1H-benzo[d]imidazol-1-yl)quinolin-8-ol and its Co(II), Ni(II), Cu(II) and Zn(II) complexes were synthesized and characterized by elemental analysis and spectroscopic techniques. According to the spectral analysis, the ligand acts as a bidentate ligand and coordinating through the nitrogen and deprotonated oxygen atoms. For Cu(II) and Ni(II) complexes, spectral analysis reveals square planer geometry, whereas Co(II) and Zn(II) complexes have tetrahedral geometry. The antibacterial results show that Zn(II) complex is more effective than the other meta

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38

Gaber, Ahmed, Arafa A. M. Belal, Ibrahim M. El-Deen, et al. "Synthesis, Spectroscopic Characterization, and Biological Activities of New Binuclear Co(II), Ni(II), Cu(II), and Zn(II) Diimine Complexes." Crystals 11, no. 3 (2021): 300. http://dx.doi.org/10.3390/cryst11030300.

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Metal-ligand complexes have attracted major interest due to their potential medical applications as anticancer agents. The work described in the current article aimed to synthesize, spectroscopic, thermal, and biological studies of some metal-diimine complexes. A diimine ligand, namely 2-{[2-(4-chlorophenyl)-2-hydroxyvinyl]-hydrazonomethyl}phenol (diim) was prepared via the reaction of p-chlorophenacyl bromide with hydrazine hydrate in ethanol, then condensation was completed with 2-hydroxybenzaldehyde in acetic acid. The Co(II), Ni(II), Cu(II), and Zn(II) complexes were prepared with a metal:

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39

Swamy, S. J., and Someshwar Pola. "Spectroscopic studies on Co(II), Ni(II), Cu(II) and Zn(II) complexes with a N4-macrocylic ligands." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 70, no. 4 (2008): 929–33. http://dx.doi.org/10.1016/j.saa.2007.11.005.

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40

Spînu, C., M. Pleniceanu, and C. Tigae. "Biologically active new Fe(II), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) complexes of N-(2-thienylmethylene)methanamine." Journal of the Serbian Chemical Society 73, no. 4 (2008): 415–21. http://dx.doi.org/10.2298/jsc0804415s.

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Iron(II), cobalt(II), nickel (II), copper (II), zinc(II) and cadmium(II) complexes of the type ML2Cl2, where M is a metal and L is the Schiff base N- -(2-thienylmethylene)methanamine (TNAM) formed by the condensation of 2- -thiophenecarboxaldehyde and methylamine, were prepared and characterized by elemental analysis as well as magnetic and spectroscopic measurements. The elemental analyses suggest the stoichiometry to be 1:2 (metal:ligand). Magnetic susceptibility data coupled with electronic, ESR and M?ssbauer spectra suggest a distorted octahedral structure for the Fe(II), Co(II) and Ni(II)

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41

Wang, Yunfei, and Yuming Zhao. "Carboxylated dithiafulvenes and tetrathiafulvalene vinylogues: synthesis, electronic properties, and complexation with zinc ions." Beilstein Journal of Organic Chemistry 11 (June 3, 2015): 957–65. http://dx.doi.org/10.3762/bjoc.11.107.

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A class of carboxyl and carboxylate ester-substituted dithiafulvene (DTF) derivatives and tetrathiafulvalene vinylogues (TTFVs) has been synthesized and their electronic and electrochemical redox properties were characterized by UV–vis spectroscopic and cyclic voltammetric analyses. The carboxyl-TTFV was applied as a redox-active ligand to complex with Zn(II) ions, forming a stable Zn-TTFV coordination polymer. The structural, electrochemical, and thermal properties of the coordination polymer were investigated by infrared spectroscopy, cyclic voltammetry, powder X-ray diffraction, and differe

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42

Mondal, Satyajit, Moumita Chakraborty, Antu Mondal, et al. "Crystal structure, spectroscopic, DNA binding studies and DFT calculations of a Zn(ii) complex." New Journal of Chemistry 43, no. 14 (2019): 5466–74. http://dx.doi.org/10.1039/c8nj05646c.

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43

Mincione, Giovanna, Andrea Scozzafava, and Claudiu T. Supuran. "Carbonic Anhydrase Inhibitors. Part 461 Inhibition of Carbonic Anhydrase Isozymes I, II and IV With Trifluoromethylsulfonamide Derivatives and Their Zinc(II) and Copper(II) Complexes." Metal-Based Drugs 4, no. 1 (1997): 27–34. http://dx.doi.org/10.1155/mbd.1997.27.

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Reaction of aromatic/heterocyclic sulfonamides containing a free amino group with triflic anhydride afforded compounds possessing trifluoromethanesulfonamido moieties in their molecule. The Zn(II) and Cu(II) complexes of these new sulfonamides were prepared and characterized by standard procedures (elemental analysis, spectroscopic, magnetic, thermogravimetric and conductimetric measurements). The new derivatives showed good inhibitory activity against three isozymes of carbonic anhydrase (CA), i.e., CA I, II and IV.

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44

Blum, M., J. Kappler, S. H. Schlindwein, M. Nieger, and D. Gudat. "Synthesis, spectroscopic characterisation and transmetalation of lithium and potassium diaminophosphanide-boranes." Dalton Transactions 47, no. 1 (2018): 112–19. http://dx.doi.org/10.1039/c7dt04110a.

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45

Kimber, Marc C., Jason P. Geue, Stephen F. Lincoln, A. David Ward, and Edward R. T. Tiekink. "A Preparative and Preliminary Spectroscopic Study of Analogues of a Zinquin-Related Fluorophore." Australian Journal of Chemistry 56, no. 1 (2003): 39. http://dx.doi.org/10.1071/ch01071.

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The syntheses of the 4- and 5-methoxy isomers of 4-N-(6-methoxy-2-methyl-8-quinolyl)-4-methylbenzenesulfon-amide and of N-(2-methoxy-8-quinolyl)-4-methylbenzenesulfonamide are described. The 6-methoxy compound is a precursor of Zinquin ester, a specific fluorophore for Zn(II). The 2-methoxy analogue was synthesized by nitration of 2-chloroquinoline and subsequent functional group manipulation. The 4-methoxy isomer was synthesized from a 4-quinolone derivative, and the 5-methoxy isomer was synthesized by a standard Skraup quinoline synthesis. The structures of the 4- and 5-methoxy isomers were

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Sunar, Shiva Lall, Keisham Surjit Singh, and Sajal Kundu. "Synthesis and Spectral Studies of Some Zn(II) Complexes with Substituted N,N-Donor Ligands Derived from Pyridine-2-carbaldehyde." Asian Journal of Chemistry 32, no. 1 (2019): 122–26. http://dx.doi.org/10.14233/ajchem.2020.22348.

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A series of four neutral zinc complexes with substituted N,N-donor ligands viz. Ln = (E)-N-(pyridin-2-ylmethylene)anilines of composition [Zn(NO3)2(L1)] (1), [Zn(NO3)2L2] (2), [Zn(NO3)2L3] (3), [Zn(NO3)2L4] (4) were synthesized and characterized. The spectroscopic properties of the Zn(II) complexes were studied by UV-visible, fluorescence, IR and 1H NMR spectral analysis. All the zinc(II) complexes are water soluble and non-electrolyte in solution. Efforts for getting single crystals suitable for X-ray crystal structure could not be achieved. However, on the basis of spectral studies, compound

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Khan, Muhammad S., Nawal K. Al-Rasbi, and Edwin C. Constable. "Synthesis and Characterization of Some Macrocylic Complexes Incorporating Indole and 2,2'-Bipyridine or 1,10-Phenanthroline." Sultan Qaboos University Journal for Science [SQUJS] 20, no. 1 (2015): 20. http://dx.doi.org/10.24200/squjs.vol20iss1pp20-28.

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Complexes of anionic pentadentate macrocyclic ligands by the template condensation of bis(hydrazino)2,2'-bipyridine or 1,10-phenanthroline with an indoledialdehyde have been synthesized. The new Mn(II), Fe(II), Co(II), Ni(II), Cu(II) and Zn(II) macrocyclic complexes have been characterized by analytical and spectroscopic techniques and by conductivity and magnetic susceptibility measurements.

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Pladzyk, Agnieszka, Zbigniew Hnatejko, and Katarzyna Baranowska. "Binuclear Co(II), Zn(II) and Cd(II) tri-tert-butoxysilanethiolates. Synthesis, crystal structure and spectroscopic studies." Polyhedron 79 (September 2014): 116–23. http://dx.doi.org/10.1016/j.poly.2014.04.049.

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Ambrosi, Gianluca, Cristina Battelli, Mauro Formica, et al. "Two polyaminophenolic fluorescent chemosensors for H+and Zn(ii). Spectroscopic behaviour of free ligands and of their dinuclear Zn(ii) complexes." New J. Chem. 33, no. 1 (2009): 171–80. http://dx.doi.org/10.1039/b810228g.

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Jasiewicz, Beata. "Sparteine and α-Isosparteine Complexes with Zn(II) and Cu(II): Structure and Spectroscopic Properties." Mini-Reviews in Organic Chemistry 6, no. 4 (2009): 275–82. http://dx.doi.org/10.2174/157019309789371622.

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