STERIC EFFECTS IN HETEROBORANES .7. THE SYNTHESIS AND CHARACTERIZATION OF ARENE-RUTHENIUM COMPLEXES OF C-SUBSTITUTED CARBABORANES - MOLECULAR-STRUCTURES OF 1-PH-3-(MES)-3,1,2-CLOSO-RUC2B9H10 (MES=C6H3-1,3,5) AND 1-PH-2-ME-3-(P-CYM)-3,1,2-CLOSO-RUC2B9H9 (P-CYM=C(6)H(4)ME-1-PR-I-4), THE LATTER SHOWING AN INCIPIENT DEFORMATION

被引：46

作者：

COWIE, J ^{[1
]}

REID, BD ^{[1
]}

WATMOUGH, JMS ^{[1
]}

WELCH, AJ ^{[1
]}

机构：

[1] UNIV EDINBURGH, DEPT CHEM, EDINBURGH EH9 3JJ, MIDLOTHIAN, SCOTLAND

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1994年 / 481卷 / 02期

关键词：

HETEROBORANES; CARBABORANES; RUTHENIUM; ARENE COMPLEXES; CRYSTAL STRUCTURE;

D O I：

10.1016/0022-328X(94)85037-2

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis and characterization of Tl-2[7-Ph-7,8-nida-C2B9H10], 3-(p-cym)-3,1,2-closo-RuC2B9H11 (1), 1-Ph-3-(mes)-3,1,2-closo-RuC2B9H10 (2), 1-Ph-3-(p-cym)-3,1,2-closo-RuC2B9H10 (3) and 1-Ph-2-Me-3-(p-cym)-3,1,2-closo-RuC2B9H9 (4) are reported. The ruthenium-containing species are obtained from the reactions between the appropriate [(arene)RuCl2](2) and either Tl-2[7,8-nido-C2B9H11], Tl-2[7-Ph-7,8-nido-C2B9H10] or Tl-2[7-Ph-8-Me-7,8-nido-C2B9H9]. Crystallographic studies on 2 and 4 reveal that whereas the former contains an essentially undistorted {RuC2B9} framework, there is some indication that in the latter, a polyhedral deformation from close towards pseudocloso has just begun. This idea gains support from comparison of the B-11 NMR shifts for 1, 3 and 4 with those for reference carbaboranes.

引用

页码：283 / 293

页数：11

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