DIFFER
DIFFER Publication

Gas-phase deprotonation of p-hydroxybenzoic acid investigated by IR spectroscopy: solution-phase structure Is retained upon ESI

Label Value
Author
Abstract

The gas-phase structure of the conjugate base of p-hydroxybenzoic acid (and related compounds) and the influence of the solvent used in its generation by electrospray ionization have recently been under debate. While the phenoxide structure is known to be lower in energy in the gas phase, the carboxylate structure is favored in aqueous solution, fuelling the controversy. Here we probe the structure of this gas-phase anion by IR spectroscopy and show that its structure is determined by the protic or aprotic nature of the solvent, which suggests that it is the solution-phase structure that is transferred to the gas phase.

Year of Publication
2009
Journal
Journal of the American Chemical Society
Volume
131
Number
38
Number of Pages
13570-+
Date Published
Sep
Type of Article
Article
ISBN Number
0002-7863
Accession Number
ISI:000270186600003
URL
PId
541016df1ea87ab291118c98e87fb15a
Alternate Journal
J. Am. Chem. Soc.
Journal Article
Download citation