Synthesis and structure of 1,12-diethynyl-para-carborane

被引：21

作者：

Batsanov, AS ^{[1
]}

Fox, MA ^{[1
]}

Howard, JAK ^{[1
]}

MacBride, JAH ^{[1
]}

Wade, K ^{[1
]}

机构：

[1] Univ Durham, Dept Chem, Sci Labs, Durham DH1 3LE, England

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2000年 / 610卷 / 1-2期

基金：

英国工程与自然科学研究理事会;

关键词：

crystal structure; pi-conjugation; cage distortion; bond order; carborane; alkyne;

D O I：

10.1016/S0022-328X(00)00351-X

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Base desilylation of the novel compound, 1,12-bis(trimethylsilylethynyl)-para-carbonate 1,12-(Me,SiC=C)(2)-1,12-C2B10H10, gave the previously unknown compound 1,12-bis(diethynyl)-para-carborane, 1,12-(HC=C)(2)-1,12-C2B10H10. In the structure of the latter carborane, determined by X-ray diffraction, the ethynyl substituents induce a distortion of the carborane icosahedron, lengthening the tropical B-B bonds. The structural parameters of the diethynyl carborane are compared with known structures of type 1,12-(XE)(2)B10H10 bearing substituents on antipodal sites particularly the isostructural and isoelectronic 1,12-B12H10(CO)(2). (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：20 / 24

页数：5

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