Sterically encumbered charge-compensated carbaboranes: Synthesis and reactivity - Molecular structures of 7-Ph-11-SMe2-7,8-nido-C2B9H10 and 1-Ph-3,3-(CO2-7-SMe)(2)-3,1,2-closo-RhC2B9H8

被引：27

作者：

Rosair, GM ^{[1
]}

Welch, AJ ^{[1
]}

Weller, AS ^{[1
]}

Zahn, SK ^{[1
]}

机构：

[1] HERIOT WATT UNIV,DEPT CHEM,EDINBURGH EH14 4AS,MIDLOTHIAN,SCOTLAND

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1997年 / 536卷 / 1-2期

关键词：

boron; rhodium; carbaboranes; steric effects; crystal structure;

D O I：

10.1016/S0022-328X(96)06740-X

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reaction between K[7-Ph-7,8-nido-C2B9H11] and dmso in H2SO4 affords a mixture of the isomers 7-Ph-9-SMe2-7,8-nido-C2B9H10 (1a) and 7-Ph-11-SMe2-7,8-nido-C2B9H10 (1b). Similarly, starting from K[7,8-Ph-2-7,8-nido-C2B9H10], the diphenyl analogue 7,8-Ph-2-9-SMe2-7,8-nido-C2B9H9 (2) was produced. These three new nido carbaboranes have been characterised spectroscopically, including B-11-B-11 COSY and H-1-H-1 NOESY experiments, and by a single crystal diffraction study on 1b. Deprotonation of 1a followed by addition of [RhCl(CO)(2)](2) affords the carbametallaborane 1-Ph-3,3-(CO)(2)-7-SMe2-3,1,2-closo-RhC2B9H9 (3), characterised by R-1 and H-1 and B-11 NMR spectroscopies and by a crystallographic study. (C) 1997 Elsevier Science S.A.

引用

页码：299 / 308

页数：10

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