作者:Matthew A. Fender、Yasmin M. Sayed、Frank T. Prochaska
DOI:10.1021/j100160a033
日期:1991.4
Mercury-xenon arc lamp photolysis of argon matrix samples at 12 K containing hydrogen sulfide and sulfur dioxide produced eight new infrared absorptions at 2591, 1209, 1093, 762, 476, 450, 340, and 270 cm-1. Extensive deuterium and oxygen-18 isotopic substitution studies, and normal-coordinate calculations on all isotopomers, allow the assignment of these absorptions to eight vibrational modes of sulfinic acid. The HSO2H molecule is formed by in situ hydrogen atom addition to matrix-isolated sulfur dioxide molecules. This is the first infrared spectroscopic observation of this reactive molecule.