AN ABINITIO/IGLO/NMR STUDY OF THE NIDO-CARBORANE C2B6H10

被引:30
|
作者
BAUSCH, JW
PRAKASH, GKS
BUHL, M
SCHLEYER, PV
WILLIAMS, RE
机构
[1] UNIV SO CALIF,DONALD P & KATHERINE B LOKER HYDROCARBON RES INST,LOS ANGELES,CA 90089
[2] UNIV SO CALIF,DEPT CHEM,LOS ANGELES,CA 90089
[3] UNIV ERLANGEN NURNBERG,INST ORGAN CHEM,W-8520 ERLANGEN,GERMANY
关键词
D O I
10.1021/ic00040a014
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The structure of the eight-vertex nido-carborane C2B6H10 has been investigated by employing the ab initio/IGLO/NMR method. The experimental B-11 NMR chemical shifts for C2B6H10 are compatible with three different structures (one static and two requiring fluxionality). Ab initio calculations were not able to locate a minimum corresponding to one of the structures requiring fluxionality, but the other two structures are minima on the potential surface. Theoretical IGLO B-11 NMR chemical shift calculations strongly support the static structure and rule out the remaining dynamic structure.
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页码:3060 / 3062
页数:3
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