A 10-ELECTRON RHENIUM HYDRIDE CLUSTER

被引：6

作者：

HOFFMAN, DM ^{[1
]}

LAPPAS, D ^{[1
]}

PUTILINA, E ^{[1
]}

机构：

[1] HARVARD UNIV,DEPT CHEM,CAMBRIDGE,MA 02138

来源：

INORGANIC CHEMISTRY | 1992年 / 31卷 / 01期

关键词：

D O I：

10.1021/ic00027a015

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reactions of Re3(mu-Cl)3Cl6(thf)3 and 9 equivalents of LiNMe2 gave triangulo-Re3(mu-3-H)2(mu-NMe2)3(NMe2)6 in low but reproducible yields. The dihydride cluster was characterized by chemical analysis and spectroscopic methods. The latter indicate that Re3(mu-3-H)2(mu-NMe2)3(NMe3)6 has virtual D3h, D3, or C3h molecular symmetry. Rotation about the Re-N bonds of the terminal NMe2 groups occurs with activation parameter DELTA-G double-ended dagger (298 K) = 11.1 kcal/mol. The source of the hydride ligands is proposed to be amido ligand methyl groups. A qualitative analysis of the bonding in Re3(mu-3-H)2(mu-NMe2)3(NMe2)6 indicates that there are 10 electrons available for Re-Re bonding.

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页码：79 / 81

页数：3

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