%0 Journal Article
%@ 1089-5639
%A Robertson, WH
%A Johnson, MA
%A Myshakin, EM
%A Jordan, KD
%D 2002
%F pittir:17970
%J Journal of Physical Chemistry A
%N 42
%P 10010 - 10014
%T Isolating the charge-transfer component of the anionic H bond via spin suppression of the intracluster proton transfer reaction in the NO<sup>-</sup>·H<inf>2</inf>O entrance channel complex
%U http://d-scholarship-dev.library.pitt.edu/17970/
%V 106
%X We report the vibrational predissociation spectrum of the NO-·H2O complex in the OH stretching region. The ionic H-bonded OH stretch is much less red-shifted and less structured in the vibrational spectrum of NO-·H2O than in that of the O2-·H2O cluster, despite the larger proton affinity of NO- relative to O2-. It is argued that the differences between the spectra of these two species are primarily a consequence of the greater charge-transfer character in the O2-·H2O cluster and that the charge-transfer component is much less important in NO-·H2O because of its triplet spin character.