CLUSTER CHEMISTRY .114. PREPARATION AND CHARACTERIZATION OF SOME RU5 CLUSTERS CONTAINING VINYLIDENE LIGANDS

被引：13

作者：

ADAMS, CJ

BRUCE, MI

SCHULZ, M

SKELTON, BW

WHITE, AH

机构：

[1] UNIV ADELAIDE,DEPT CHEM,JORDAN LABS,ADELAIDE,SA 5005,AUSTRALIA

[2] UNIV WESTERN AUSTRALIA,DEPT CHEM,NEDLANDS,WA 6009,AUSTRALIA

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1994年 / 472卷 / 1-2期

基金：

澳大利亚研究理事会;

关键词：

RUTHENIUM; CLUSTER; VINYLIDENE; FLUXIONALITY; CRYSTAL STRUCTURE; X-RAY DIFFRACTION; DICARBON;

D O I：

10.1016/0022-328X(94)80214-9

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reactions of the open Ru5C2 cluster complex, Ru5(mu5-C2)(mu-SMe)2(mu-PPh2)2(CO)11 (1), with hydrogen or olefins afforded electron-rich vinylidene complexes Ru5(mu3-CCHR)(mu3-SMe)2(mu-PPh2)2(CO)10 [2; R = H and 3; R = CH = CHR' (R' = H, Me, Ph and CO2Et)]. X-Tay structural determinations have been carried out on 2 and 3 (R' = H, Me and Ph). These complexes contain an Ru5 core consisting of three edge-sharing triangles; the vinylidene ligand, which spans one of the Ru3 faces, is fluxional, with concomitant changes occurring in the orientations of the SMe, PPh2 and CO groups. The clusters have 80 cluster valence electrons, the Ru-Ru separations being elongated (av. 3.03 angstrom) as a result of occupation of Ru-Ru anti-bonding orbitals.

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收藏

页码：285 / 294

页数：10

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