Published in
Royal Society of Chemistry, Chemical Communications, 20, p. 2164
DOI: 10.1039/b602116f
Links
Tools
Bond length and bond multiplicity: ${σ}$-bond prevents short$ {π} $-bonds
Journal article published in 2006 by
Eluvathingal D. Jemmis 
,
Biswarup Pathak,
R. Bruce King,
R. Bruce King,
Bruce R. King,
Henry F. Schaefer
,
Biswarup Pathak,
R. Bruce King,
R. Bruce King,
Bruce R. King,
Henry F. Schaefer
This paper is available in a repository.
Full text: Download
Published version:
archiving forbidden
Data provided by 
Abstract
Analysis of model compounds such as Fe-2(CO)(6), C-2 and HBBH shows that pi-bonds left to themselves are shorter than sigma-bonds; in many ways sigma-bonds prevent pi-bonds from adopting their optimal shorter distances.