To complement laboratory studies of new particle formation from methanesulfonic acid (MSA), amines and water, quantum chemical calculations were carried out to determine the structure and stability of initial complexes. MSA, an oxidation product of organosulfur species, does not lead to significant particle formation with water alone. However, MSA could to lead significant particle formation in the atmosphere in the presence of amines and water. Variation in the observed particle concentrations with the precursor amine and the dependence on relative humidity may be related to the calculated structure and stability of the initial complexes.

Complexes leading to particle formation from methanesulfonic acid, amines, and water

248th National Meeting (2014)

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