Abstract
(Equation presented) High level ab initio molecular orbital calculations confirm experimental indications that the effect of alkyl substituents (R = Me, Et, i-Pr, t-Bu) on R-X bond dissociation energies varies considerably according to the nature of X. A simple qualitative explanation In terms of valence-bond theory is presented, highlighting the increasing importance of the stabilization of R-X by the ionic R+X- configuration for electronegative X substituents (such as F, OH, and OCH3).
Original language | English |
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Pages (from-to) | 4689-4692 |
Number of pages | 4 |
Journal | Organic Letters |
Volume | 5 |
Issue number | 24 |
DOIs | |
Publication status | Published - 1 Nov 2003 |
Externally published | Yes |