Bridged multiclusters derived from the face-capped octahedral [Re6III(μ3-Se)8]2+ cluster core

被引：38
|
作者：
Selby, HD
Zheng, ZP [1 ]
Gray, TG
Holm, RH
机构：
[1] Univ Arizona, Dept Chem, Tucson, AZ 85721 USA
[2] Harvard Univ, Dept Chem & Chem Biol, Cambridge, MA 02138 USA
来源：
INORGANICA CHIMICA ACTA | 2001年 / 312卷 / 1-2期
基金：
美国国家科学基金会;
关键词：
clusters; electrochemistry; mass spectrometry; rhenium; supramolecular assemblies;
D O I：
10.1016/S0020-1693(00)00324-8
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The face-capped octahedral cluster cis-[Re-6(mu (3)-Se)(8)(PEt3)(4)(MeCN)(2)](SbF6)(2), site-differentiated with protecting PEt3, and substitutionally labile MeCN ligands, reacts with bidentate ligands (L) 4,4'-bipyridyl, (E)-1,2-bis(4-pyridyl)ethene, and 1,2-bis(4-pyridyl)ethane to give the first examples of cluster-based molecular squares of the general formula cyclo-[Re-6(mu (3)-Se)(8)(PEt3)(4)L](4)(SbF6)(8). The complexes were characterized by microanalysis, H-1 and P-31 NMR, and time-of-flight electrospray ionization mass spectrometry. Cyclic voltammetry reveals in each case one quasi-reversible oxidation and, for two compounds, one reversible and one irreversible reduction process. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：205 / 209
页数：5
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