COMPLEXATION AND COORDINATION SELECTIVITIES OF THE TETRADENTATE LIGAND 7-[(2-HYDROXY-5-SULFOPHENYL) AZO]-8-HYDROXYQUINOLINE-5-SULFONIC ACID WITH FE(II), NI(II), ZN(II), CD(II) AND VO(IV)

被引：6
|
作者：
HUANG, H
KAI, FM
HIROHATA, M
NAKAMURA, M
MATSUZAKI, S
KOMORI, KJ
TSUNEMATSU, Y
机构：
[1] KUMAMOTO UNIV,GRAD SCH NAT SCI & TECHNOL,KUMAMOTO 860,JAPAN
[2] KUMAMOTO UNIV,FAC SCI,DEPT CHEM,KUMAMOTO 860,JAPAN
来源：
JOURNAL OF COORDINATION CHEMISTRY | 1993年 / 30卷 / 02期
关键词：
TETRADENTATE LIGANDS; EQUILIBRIA; SELECTIVITY; VO(IV); FE(II); NI(II); ZN(II); CD(II);
D O I：
10.1080/00958979308024665
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The new title tetradentate ligand (SPAHQS), containing both phenylazo and 8-quinolinol fragments, was prepared. Proton-dissociation processes of the ligand and complexing equilibria with Fe(II), Ni(II), Zn(II), Cd(II), and VO(IV) were analyzed spectrophotometrically. Coordination modes of SPAHQS with these metal ions have been investigated by means of polarography and Raman spectroscopy in aqueous solution. It was established that the coordination selectivity of SPAHQS for such metal ions is mainly dependent on steric factors in the chelate ring formed, not on HSAB properties.
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页码：131 / 144
页数：14
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