Protolytic properties of 8-quinolylhydrazones of substituted salicylaldehydes and physicochemical properties of their copper(II) complexes

被引：0
作者：
L. D. Popov
S. I. Levchenkov
I. N. Shcherbakov
V. A. Kogan
机构：
[1] Rostov State University,Southern Research Center
[2] Russian Academy of Sciences,undefined
来源：
Russian Journal of General Chemistry | 2007年 / 77卷
关键词：
General Chemistry; Hydrazones; Salicylaldehyde; Ionization Constant; Dimeric Complex;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Acid-base properties of hydrazones derived from 8-hydrazinoquinoline and substituted salicylaldehydes were studied. Under the experimental conditions, only the first step of ionization of the hydrazones is realized. The ionization constants were calculated quantum-chemically. Copper(II) complexes of these hydrazones, (HL)Cu(X)(CH3OH)n, were isolated (HL− is the monodeprotonated form of hydrazones, and X− is the acid residue). According to the data of elemental analysis, IR spectroscopy, conductometry, and magnetochemistry, the majority of the complexes have a binuclear structure. The copper(II) ions in the dimeric complex show antiferromagnetic exchange coupling. The ionization constants of the hydrazones and the exchange parameters strongly depend on the substituent in the salicylaldehyde moiety.
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页码：1284 / 1292
页数：8
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