REACTION OF [(ETA-5-C5H4R)CL2W=WCL2(ETA-5-C5H4R)] (R = ME, PR1) WITH ALKYNES - X-RAY CRYSTAL-STRUCTURES OF [(ETA-5-C5H4ME)2W2CL4(MU-C4ME4)] AND [(ETA-5-C5H4ME)2W2CL2(O)(MU-C4ME4)]

被引：18
|
作者：
GREEN, MLH
MOUNTFORD, P
机构：
[1] Inorganic Chemistry Laboratory, South Parks Road
来源：
ORGANOMETALLICS | 1990年 / 9卷 / 03期
关键词：
D O I：
10.1021/om00117a065
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The dimers [(η5-C5H4R)2W2Cl4] (1a, R = Pr1; 1b, R = Me) react with an excess of but-2-yne (C2Me2) to give the flyover bridge compounds cis-[(η5-C5H4R)2W2Cl4(µ-C4Me4)] (2a,b), which undergo thermal rearrangement in solution or in the solid state to the isomeric trans species (3a,b). The X-ray crystal structure of 3b reveals a planar bridging μ-C4Me4 group that lies symmetrically perpendicular to the W–W (2.9295 (7) Å) bond. Hydrolysis of 2 or 3 gives the monooxoditungsten derivatives trans-[(η5-C5H4R)2W2Cl2(O)(µ-C4Me4)] (4a,b). © 1990, American Chemical Society. All rights reserved.
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页码：886 / 888
页数：3
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