Reactions of spiked and open chain cluster hydrides with Au complexes:: skeletal rearrangement and crystal structures of heterometallic clusters [Au2Ru4(CO)12(μ4-PCF3)(PMe3)2] and [Au2Ru4(CO)12(μ3-PCF3)2(PPh3)2]

被引:4
作者
Ang, HG [1 ]
Ang, SG [1 ]
Du, SW [1 ]
机构
[1] Natl Univ Singapore, Dept Chem, Singapore 119260, Singapore
关键词
ruthenium; heterometallic cluster; molecular structure; spiked; open chain;
D O I
10.1016/S0022-328X(99)00369-1
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Treatment of the spiked cluster [Ru-4(CO)(13)(mu-H)(2)(mu(4)-PCF3)] with [Au(PMe3)Cl] in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) results in deprotonation and metal core rearrangement from spiked to butterfly, yielding the heterometallic cluster [Au2Ru4(CO)(12)(mu(4)-PCF3)(PMe3)(2)] 1. Reaction of the open chain cluster [Ru-4(CO)(12)(mu-H)(2)(mu(3)-PCF3)(2)] with [Au(PPh3)Cl] under similar conditions gives [Au2Ru4(CO)(12)(mu(3)-PCF3)(2)(PPh3)(2)] 2 where the hydrides are simply replaced by AuPPh3 fragments. Clusters 1 and 2 are characterised by spectroscopy and X-ray crystallography. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:133 / 137
页数:5
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