Acc Chem Res. 2002 Apr;35(4):247-54. doi: 10.1021/ar0101077.
Accounts of chemical research
Stephen F Nelsen, Jack R Pladziewicz
PMID: 11955053 DOI: 10.1021/ar0101077
Electron-transfer cross-reactions between neutral molecules and their radical cations spanning a wide range of structural type and intrinsic reactivity have been analyzed using classical Marcus theory. The principal factor found to govern intrinsic reactivity is the inner-shell bond reorganization energy. The HOMO-LUMO overlap of alkyl groups on reacting molecules is generally sufficient to provide facile electron transfer; however, a significant steric effect on this overlap is observed for hydrazines with alkyl groups larger than methyl.