Syntheses and X-ray crystal structures of [Zn(cyclen)-im-Zn(cyclen)](ClO4)3 and [Ni(cyclen)(imH)(ClO4)](ClO4) (cyclen=1,4,7,10-tetraazacyclododecane, im=imidazolate)

被引：8
|
作者：
Pariya, C [1 ]
Chi, TY [1 ]
Mishra, TK [1 ]
Chung, CS [1 ]
机构：
[1] Natl Tsing Hua Univ, Dept Chem, Hsinchu 300, Taiwan
来源：
INORGANIC CHEMISTRY COMMUNICATIONS | 2002年 / 5卷 / 02期
关键词：
crystal structures; zinc complex; nickel complex; macrocyclic ligand complexes; imidazolate-bridged complex;
D O I：
10.1016/S1387-7003(01)00359-8
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The imidazolate-bridged binuclear zinc(II) macrocyclic complex, [Zn(cyclen)-im-Zn(cyclen)](ClO4)(3) (1) and the free imidazole coordinated mononuclear nickel(II) complex, [Ni(cyclen)(imH)(ClO4)](ClO4) (2) (cyclen=1,4,7,10-tetraazacyclododecane, im = imidazolate) have been synthesized. Complexes 1 and 2 have been characterized by single crystal structural analyses. In complex 1 both zinc(II) ions are five-coordinated with a distorted square pyramidal geometry composed of four nitrogen atoms from cyclen and one nitrogen atom from the bridging imidazolate ion with N-5 chromophore. Complex 2 is mononuclear nickel(II) having six-coordination with distorted octahedral geometry consisting of four nitrogen atoms from cyclen, one nitrogen atom from the imidazole molecule and one oxygen from one of the perchlorate ions to give a N5O chromophore. (C) 2002 Elsevier Science B.V. All rights reserved.
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页码：119 / 123
页数：5
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