Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
RESEARCH ARTICLE

Bicyclo[2.1.1]hex-1-yl Cation: an Ab Initio Study of the C6H9+ Potential-Energy Surface

CH Schiesser

Australian Journal of Chemistry 46(8) 1301 - 1305
Published: 1993

Abstract

An extensive investigation of the C6H9+ potential-energy surface by ab initio molecular orbital theory is reported. Calculations at the RHF/6-31G* level of theory predict that the bicyclo[2.1.1]hex-1-yl cation (2b) rearranges to the 3-methylenecyclopentyl cation (7b) with an energy barrier of only 0.3 kJ mol-1. Inclusion of electron correlation in the calculation casts doubt on the gas-phase existence of (2b) which is predicted to rearrange without barrier at the MP2/6-31G* level of theory.

https://doi.org/10.1071/CH9931301

© CSIRO 1993


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