A New Synthetic Method of Zinc(II) Complexes Based on Mixing

Takaya, Masahiro

doi:10.1248/yakushi.125.829

Cited by 5 publications

(5 citation statements)

References 13 publications

(33 reference statements)

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“…only a very small amount of impurities that could not be analysed. M. Takaya [ 47 ] has recently published a new method of obtaining zinc(II) complexes at high yields by direct mixing of solid ligands and solid Zn(OH) 2 or ZnO with or without the addition of small amount water. The author described the synthesis of the bis(imidazolato)zinc(II) complex, and its characterization by elemental analysis and FT-IR spectroscopy but not by the single-crystal X-ray diffraction.…”

Section: Resultsmentioning

confidence: 99%

Zn(II) halide coordination compounds with imidazole and 2-methylimidazole. Structural and computational characterization of intermolecular interactions and disorder

Tašner

Vušak

Kekez

et al. 2022

Heliyon

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Section: Resultsmentioning

confidence: 99%

Zn(II) halide coordination compounds with imidazole and 2-methylimidazole. Structural and computational characterization of intermolecular interactions and disorder

Tašner

Vušak

Kekez

et al. 2022

Heliyon

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“…Thus only the zinc complexes 1-4 exhibited their binding with DNA (Figures 1, 2, 3, 4) out of all the coordination products (1)(2)(3)(4)(5)(6)(7)(8)(9)(10). None of the copper complex showed any tendency to bind with DNA.…”

Section: Dna Interaction Studiesmentioning

confidence: 96%

Untitled

2019

AJC

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The hydrated complexes 1, 3, 7 and 8 with the general formula (RCOO) 2 M.xH 2 O (where M = Zn & x = 6; M = Cu & x = 5,6) were synthesized by the reaction of sodium salt of 2,2`-diphenyl acetic acid or 2-(4-hydroxyphenyl)acetic acid (RCOONa) with Zn(NO 3 ) 2 .6H 2 O or CuSO 4 .5H 2 O in an aqueous medium. The addition of methanolic solution of either bipyridine (bpy) or 1,10-phenanthroline (phen) to an aqueous suspension of 1, 3, 7 and 8 (produced in situ) result in the formation of mixed ligand products with the general formulae (RCOO) 2 M(bpy).xH 2 O (2, 4, 9 and 10) and (RCOO) 2 M(phen).xH 2 O (5 and 6). The complexes were characterized by microanalysis, FTIR and NMR ( 1 H and 13 C) spectroscopic techniques. The FTIR data suggested a bidentate coordination mode of the carboxylate ligand and complexes exhibited four/six-coordinated geometry in the solid state. The spectroscopic data also revealed the presence of coordinated water molecules in all complexes. 1 H and 13 C NMR data demonstrated the coordination between ligand and the metal in complex 1. The complexes were tested for their binding with salmon sperm DNA (SS-DNA). The DNA binding potential of the complexes owed to the presence of zinc metal and the nature of the incorporated ligand. The complexes showed a significant hypochromic effect and an intercalating mode of binding with SS-DNA. The complexes were screened against various bacterial and fungal strains to check their biological activity. All the complexes showed significant antibacterial activity but none of complex exhibit antifungal activity.

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“…The complex was synthesized according to a general procedure proposed by Takaya [37]. A homogeneous solid mixture of 0.5 mmol of Cu(OH) 2 CuCO 3 , 2 mmol of glycine, and 2 mmol of sodium saccharinate dihydrate was moistened with a few drops of distilled water and incubated at 80°C for 5 h in a porcelain dish.…”

Section: Reagentsmentioning

confidence: 99%

“…The complex was synthesized according to a general procedure proposed by Takaya [37]. A homogeneous mixture of 0.5 mmol of Zn(OH) 2 ZnCO 3 , 2 mmol of aminoacids, Fig.…”

Section: Synthesis Of the Complexesmentioning

confidence: 99%

Synthesis and Characterization of Heteroleptic Copper and Zinc Complexes with Saccharinate and Aminoacids. Evaluation of SOD-like Activity of the Copper Complexes

Santi

Viera

Mombrú

et al. 2011

Biol Trace Elem Res

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Five new copper and zinc heteroleptic complexes with saccharin and aminoacids with general stoichiometry Na(2)[M(sac)(2)(aa)(2)].nH(2)O (M denotes Cu or Zn, sac the saccharinate ion, and aa the aminoacids) were synthesized and characterized by elemental and thermogravimetric analysis, conductimetric measurements and IR, Raman and UV-vis spectroscopies. In all the complexes, copper and zinc ions coordinated with the aminoacids through the terminal amine and carboxylate residues and with saccharin through the heterocyclic nitrogen atom. Besides, the superoxide dismutase-like activity of the heteroleptic copper complexes was evaluated and compared with the homoleptic copper amino acid complexes with the aim to observe the influence of the saccharin coordination.

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A New Synthetic Method of Zinc(II) Complexes Based on Mixing

Abstract: An environmentally benign new synthetic method of zinc(II) complexes without the use of organic solvents and alkali was developed, and several types of zinc(II) complexes in high yields were prepared by mixing solid ligands with solid Zn(OH) 2 or ZnO.

Cited by 5 publications

References 13 publications

Zn(II) halide coordination compounds with imidazole and 2-methylimidazole. Structural and computational characterization of intermolecular interactions and disorder

Zn(II) halide coordination compounds with imidazole and 2-methylimidazole. Structural and computational characterization of intermolecular interactions and disorder

Untitled

Synthesis and Characterization of Heteroleptic Copper and Zinc Complexes with Saccharinate and Aminoacids. Evaluation of SOD-like Activity of the Copper Complexes

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