期刊
JOURNAL OF ORGANOMETALLIC CHEMISTRY
卷 706, 期 -, 页码 84-88出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2012.01.023
关键词
Quantum chemical calculations; Heavy bicyclo[1.1.0]butane; Bond-stretch isomerism
资金
- New Szechenyi Plan [TAMOP-4.2.1/B-09/1/KMR-2010-0002]
- Hungarian Scientific Research Foundation (OTKA) [K76806]
Electronic and steric factors that control the bond-stretch isomerism phenomenon in 2-chalcogen-trimetallabicyclo[1.1.0]butane systems have been investigated using quantum chemical calculations. Beside the short-bond and long-bond extremes we found and characterized a third, stable conformer with significantly elongated central bond and anti arrangement of the bridgehead substituents. Electronic structures of the isomers have been described and interpreted in details within the framework of MO theory. Germanium analogues of trisilirene have been predicted to also react with sulphur to form the corresponding 2-thia-trimetallabicyclo[1.1.0]butane analogues. The systematic analysis of the relative stability dependence on the ring composition as well as the bridgehead substituents revealed that the hitherto unknown anti isomer is a promising synthetic target in germanium bridged bicyclo compounds with bridgehead substituents containing carbon contact atom. (C) 2012 Elsevier B. V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据