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Synthesis, characterization and biological studies of 2-(3,5-dimethylpyrazol-1-yl)benzothiazole complexes of cobalt(II), nickel(II) and copper(II)

✍ Scribed by Virupaxappa H. Arali; Vidyanand K. Revankar; Vinayak B. Mahale

Publisher
Springer
Year
1993
Tongue
English
Weight
421 KB
Volume
18
Category
Article
ISSN
0340-4285

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✦ Synopsis

Thirteen new complexes, MLX.nH20 and ML2(C104) 2. nH20 [M = Co, Ni, Cu; X = CI-, Br-, NO~-, ~SO 41 2-., n = 1 or 2; and L = 2-(3,5-dimethylpyrazol-l-yl)benzothiazole], have been synthesized, and characterized by elemental analysis, conductivity measurements, magnetic moments, thermal studies and electronic, i.r. and e.p.r. spectral studies. On the basis of available data probable structures have been proposed. In a few cases the antibacterial and antifungal activities increase on complexation of the ligand with metals.

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## Abstract 1,2,4‐Triphenyl‐1,3,5‐triazapentadiene (1a), prepared from benzamidine and __N__‐phenylbenzimidoyl chloride, was treated at room temperature with CoCl~2~, Ni(NO~3~)~2~, Na~2~PdCl~4~, CuCl~2~ and ZnCl~2~ to form the corresponding six‐membered 1:1 chelate complexes 1a·CoCl~2~, 1a·Ni(NO~3~