Paramagnetic alkyl, hydride, and alkene complexes of the Tpt-Bu,MeCo moiety

被引：67
作者：
Jewson, JD [1 ]
Liable-Sands, LM [1 ]
Yap, GPA [1 ]
Rheingold, AL [1 ]
Theopold, KH [1 ]
机构：
[1] Univ Delaware, Dept Chem & Biochem, Newark, DE 19716 USA
来源：
ORGANOMETALLICS | 1999年 / 18卷 / 03期
关键词：
D O I：
10.1021/om980844f
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The paramagnetic 15-electron alkyls Tp(t-Bu-Me)Co(R) (R = Me, Et, n-Bu) have been prepared, and the closely related Tp(t-Bu)Co(Me) has been structurally characterized. Hydrogenation of Tp(t-Bu,Me)Co(N-2) produced the analogous hydride, Tp(t-Bu,Me)Co(H), the crystal structure of which has been determined. Reactions of Tp(t-Bu,Me)Co(N-2) with ethylene and propane yielded the corresponding olefin complexes Tp(t-Bu,Me)Co(C2H3R) (R = H, Me). Tp(t-Bu,Me)Co(C2H4) has been structurally characterized by X-ray diffraction as well. The alkyls are thermally stable and show no tendency to beta-eliminate; upon exposure to CO homolytic cleavage of the Co-C bond is observed rather than migratory insertion.
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页码：300 / 305
页数：6
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