Analysis of Complexes Pairing Hydroperoxyl Radical with Peroxyformic Acid

Document Type

Article

Journal/Book Title

Journal of Physical Chemistry A

Publication Date

2007

Publisher

American Chemical Society

Volume

111

Issue

42

First Page

10717

Last Page

10721

Abstract

Ab initio quantum calculations are used to analyze the binding of complexes pairing OOH with HOOCHO. Six minima are located on the potential energy surface, all of cyclic geometry. Of particular interest are the OH···O and CH···O H-bonds that arise in the complexes and the manner in which these interactions influence the internal properties of the subunits. The analysis is complicated by the presence of an intramolecular H-bond in the unperturbed HOOCHO molecule, which must be broken in order to form the pair of intermolecular H-bonds that are responsible for the binding in the most stable complex. The CH bond of HOOCHO is contracted, and its stretching frequency undergoes a blue shift, when this group participates in a H-bond.

Comments

Originally published by American Chemical Society in the Journal of Physical Chemistry.

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