Synthesis, structure and properties of a trinuclear compound [Cu2Cd(tren)2(NCS)6]:: Example of dynamic molecular ion, [Cd(NCS)6-n(SCN)n]4- (n=0-6)

被引：20

作者：

Bose, D

Mostafa, G

Walsh, RDB

Zaworotko, MJ

Ghosh, BK ^{[1
]}

机构：

[1] Univ Burdwan, Dept Chem, Burdwan 713104, W Bengal, India

[2] Jadavpur Univ, Dept Phys, Kolkata 700032, W Bengal, India

[3] Univ S Florida, Dept Chem, Tampa, FL 33620 USA

来源：

POLYHEDRON | 2006年 / 25卷 / 06期

关键词：

copper(II)/cadmium(II); heterotrinuclear; tris(2-aminoethylamine); molecular ion; supramolecular chemistry;

D O I：

10.1016/j.poly.2005.10.010

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A 1:2:2:6 molar ratio of Cd(NO3)(2) center dot 4H(2)O, Cu(NO3)(2) center dot 3H(2)O, tris(2-aminoethylamine) (tren) and NH4NCS in aqueous solution at room temperature affords trinuclear complex of the type [Cu2Cd(tren)(2)(NCS)(6)] (1). The complex has been characterised using microanalytical, spectroscopic and magnetic results. X-ray diffraction measurements have been made to define the coordination sphere and long-range structure. 1 consists of two pentacoordinated copper(II) occupied by tren N atoms and one bridging SCN- N atom of the central trans-[Cd(NCS)(4)(SCN)(2)](4-) molecular ion which bridges by the 1,3-thiocyanate. Each of these trinuclear units are engaged in intra as well as intermolecular N-H center dot center dot center dot S hydrogen bonding. Variable-temperature magnetic Study shows no significant magnetic interactions among the metal ions. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1477 / 1482

页数：6

共 38 条

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