Cover Image, Volume 35, Issue 20
Journal of Computational Chemistry · 2014
Frank A. Weinhold et al. report on page 1499 (DOI: 10.1002/jcc.23654) that quantitative NBO-based evaluations of steric (left) and hyperconjugative (right) interactions in the illustrative model cis-2-butene demonstrate the dominance of steric repulsions over attractive ′H-H bonding′ in biphenyl and related species, contrary to inferences based on QTAIM analysis.