SYNTHESIS AND SPECTRAL STUDIES OF BINUCLEAR TRANSITION-METAL COMPLEXES OF DIAMIDEDIIMINE HEXAAZAMACROCYCLES

被引：62
|
作者：
SHAKIR, M
VARKEY, SP
HAMEED, PS
机构：
[1] Division of Inorganic Chemistry, Department of Chemistry, Aligarh Muslim University, Aligarh
来源：
POLYHEDRON | 1994年 / 13卷 / 09期
关键词：
D O I：
10.1016/S0277-5387(00)81701-5
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The template condensation of alkylacetoacetate with diethylenetriamine resulted in the formation of homodinuclear transition metal complexes of a 20-membered macrocyclic ligand. The overall geometry and the mode of bonding have been inferred from IR, H-1 NMR, EPR and electronic spectral studies as well as magnetic and molar conductance data. An octahedral geometry around the metal ion is suggested for [M2L1X2] and [M2L1'X2] where M = iron(II) and cobalt(II), and X = Cl or NO3. A distorted square planar and a tetrahedral geometry is proposed for [M2L2]X2 and [M2L2']X2 when M = copper(II) and zinc(II) respectively; X = Cl or NO3. The distortion in the copper complexes is confirmed through EPR investigation.
引用
收藏
页码：1355 / 1361
页数：7
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