Infrared and computational studies of weakly and strongly hydrogen bonded complexes of atmospheric interest

European Chemistry Congress

June 16-18, 2016 Rome, Italy

A Loewenschuss

The Hebrew University of Jerusalem, Israel

Posters & Accepted Abstracts: Chem Sci J

Abstract :

We shall report the FTIR spectra of several H-bonded complexes of atmospheric and environmental interest matrix isolated in frozen rare gases at cryogenic temperatures. The substances between which the interactions are studied involve water, sulfuric acid, formic acid, ammonia, trimethyl-amine, methyl alcohol, sulfur trioxide, carbon monoxide and dioxide as well as xenon. The hydrogen bonds involved range from almost complete proton transfer to strong to weak and to very weak interactions. We examine the correlation between number and position of new bands not observed for the parent molecules and assigned to be the results of intermolecular complexation, on one hand and the induced hydroxyl stretch frequency shifts and hydrogen bond strengths and lengths, on the other. Our experimental work is accompanied by high-level computational results. loewena@mail.huji.ac.il