The crystal and molecular structure of [Os-6(mu-H)(CO)(21)(NCMe)(mu-PH2)]

被引：0

作者：

Johnson, BFG ^{[1
]}

Lewis, J ^{[1
]}

Nordlander, E ^{[1
]}

Raithby, PR ^{[1
]}

机构：

[1] UNIV CAMBRIDGE,CHEM LAB,CAMBRIDGE CB2 1EW,ENGLAND

来源：

POLYHEDRON | 1997年 / 16卷 / 19期

关键词：

osmium; phosphide bridge; crystal structure; LIGAND-SUBSTITUTED DERIVATIVES; METAL PHOSPHIDO-COMPLEXES; X-RAY STRUCTURES; L = PPH3; CLUSTER CHEMISTRY; CARBONYL CLUSTERS; RU3(CO)12; STEREOCHEMISTRY; P(OCH2CF3)3; OS3(CO)12;

D O I：

10.1016/S0277-5387(97)00060-0

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The crystal structure of the phosphide-bridged cluster [Os-6(mu-H)(CO)(21)(NCMe)(mu-PH2)] 4 has been determined. The cluster consists of two Os-3 triangles which are linked by a PH2, moiety which is terminally bound to each triangle. The acetonitrile ligand is axially coordinated and the hydride bridges the Os-Os edge to which the phosphide moiety and the acetonitrile are coordinated. The molecular structure of 4 resembles those of the related clusters [Os-6(mu-H)(CO)(22)(mu-PH2)] 1 and [Os-6(mu-H)(CO)(21)(CNBut)(mu-PH2)] 2 although the dihedral angles between the two osmium triangles vary for 1, 2 and 4. The relative orientation of the two linked metal triangles in 4 (as well as 1 and 2) differs from that of the phosphite-substituted analogue [Os-6(mu-H)(CO)(20)(P(OMe)(3))(2)(mu-PH2)](3); this difference is attributed to steric factors. (C) 1997 Elsevier Science Ltd.

引用

页码：3463 / 3467

页数：5

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