2 NEW STRUCTURAL TYPES FOR D3-D3 DIMERS OF MOLYBDENUM AND TUNGSTEN - [K(18-CROWN-6)]+[MO2(OCH2BUT)7]- AND [W2(P(C-HEXYL)2)3(OCH2BUT)3(HP(C-HEXYL)2)]

被引：10

作者：

BUDZICHOWSKI, TA

CHISHOLM, MH

MARTIN, JD

HUFFMAN, JC

MOODLEY, KG

STREIB, WE

机构：

[1] INDIANA UNIV,DEPT CHEM,BLOOMINGTON,IN 47405

[2] INDIANA UNIV,CTR MOLEC STRUCT,BLOOMINGTON,IN 47405

来源：

POLYHEDRON | 1993年 / 12卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0277-5387(00)81733-7

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The syntheses and structures (determined by single-crystal X-ray diffraction techniques) are reported for [K(18-crown-6)]+[Mo2(OCH2But)7]- and [W2{P(c-hexyl)3}3 (OCH2But)3{HP(c-hexyl)2}]. The former contains a single bridging (mu-OCH2But) ligand, six terminal alkoxide ligands and an M=M triple bond. The latter contains three bridging (mu-PR2) ligands and an M-M bond distance that is most consistent with the presence of a single bond. These two compounds are the first examples of M2L7 complexes with bridging ligands. They highlight the delicate balance of metal-metal vs metal-ligand bonding in the coordination chemistry of d3-d3 dimers of molybdenum and tungsten.

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收藏

页码：343 / 345

页数：3

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