Stability studies on 1:1 or 1:3 stoichiometry complexes of hexaza tripods with zinc(II), copper(II), nickel(II) and cobalt(II)

被引：0
|
作者：
Guo, YH
Ge, QC
Lin, HK [1 ]
Zhu, SR
Lin, H [1 ]
机构：
[1] Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China
[2] Nankai Univ, State Key Lab Funct Polymer Adsorpt & Separat, Tianjin 300071, Peoples R China
来源：
TRANSITION METAL CHEMISTRY | 2004年 / 29卷 / 01期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1023/B:TMCH.0000014481.69308.bd
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The coordination properties of two C-3-symmetry hexaza tripods, 1,3,5-tri(2,5-diazahexyl)benzene (L1) and 1,3,5-tri(2,5-diazaheptyl)benzene (L2), towards Zn2+, Cu2+, Ni2+ and Co2+ ions, studied by potentiometric techniques, are reported. Both ligands form quite stable complexes either in a 1:1 or 1:3 M:L stoichiometry, presenting a preferential coordination order: Zn2+ < Cu2+ > Ni2+ > Co2+. It is observed that the different configurations of metal complexes are achieved due to the fact that tripodal ligands are flexible and not constrained into a rigid geometry.
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页码：42 / 45
页数：4
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