DYNAMIC BEHAVIOR OF HIGH-NUCLEARITY OSMIUM MERCURY CLUSTERS IN SOLUTION

被引：10

作者：

GADE, LH ^{[1
]}

JOHNSON, BFG ^{[1
]}

LEWIS, J ^{[1
]}

机构：

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

来源：

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1992年 / 05期

关键词：

D O I：

10.1039/dt9920000933

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The dynamic behaviour of the Hg-capped decaosmium cluster anions [Os10C(CO)24(HgY)]- [Y = Cl, Br, I, CF3 or Mo(CO)3(cp); cp = eta(5)-C5H5] 2a-2e as well as the Hg-linked cluster [{Os10C(CO)24}2Hg]2- 3 in solution has been investigated by variable-temperature C-13 NMR spectroscopy. The mercury fragment HgY has been found to be highly mobile on the surface of the Os10 cluster core and to undergo rapid exchange between the different mu-bridging and mu(3)-capping sites of the parent cluster. Based on the spectroscopic results a unified model for the observed metal-core fluxionality is proposed.

引用

页码：933 / 937

页数：5

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