Ring slippage in indenyl derivatives of molybdenum and tungsten

被引：38

作者：

Ascenso, JR

Goncalves, IS

Herdtweck, E

Romao, CC

机构：

[1] UNIV NOVA LISBOA,INST TECNOL QUIM & BIOL,P-2780 OEIRAS,PORTUGAL

[2] INST SUPER TECN,CTR QUIM ESTRUTURAL,P-1096 LISBON,PORTUGAL

[3] TECH UNIV MUNICH,INST ANORGAN CHEM,D-85478 GARCHING,GERMANY

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1996年 / 508卷 / 1-2期

关键词：

molybdenum; tungsten; indenyl complexes; ring slippage; X-ray structure;

D O I：

10.1016/0022-328X(95)05859-N

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Ring slippage of the indenyl occurs upon dissolution of the complexes [eta(5)-IndM(CO)(2)L(2)]BF4 (M = Mo or W; L = NCMe or dimethylformamide) in an excess of L, to give [(eta(3)-Ind)M(CO)(2)L(3)]BF4. Other ring-slipped complexes synthesized are [(eta(3)-Ind)Mo(CO)(2)L(3)]BF4 (L(3) = HC(pz)(3), [HB(pz)(3)](-), Me(3)tacn or {en(NCMe)}). Addition of NCMe or an excess of L failed to give ring slippage in [eta(5)-IndMo(CO)(2)L(2)]BF4 (L(2) = bipy, dppe, (PMe(3))(2), {P(OMe)(3)}(2) or triphos). NMR and X-ray studies reveal a large folding of the eta(3)-indenyl ring. The structure complex [(eta(3)-Ind)W(CO)(2)(NCMe)(3)]BF4 (5) was determined by X-ray analysis.

引用

页码：169 / 181

页数：13