Communication: Vibrational spectroscopy of atmospherically relevant acid cluster anions: Bisulfate versus nitrate core structures.

Autor: Yacovitch, Tara I., Heine, Nadja, Brieger, Claudia, Wende, Torsten, Hock, Christian, Neumark, Daniel M., Asmis, Knut R.
Předmět:
Zdroj: Journal of Chemical Physics; 6/28/2012, Vol. 136 Issue 24, p241102, 4p, 1 Graph
Abstrakt: Infrared multiple photon dissociation spectra for the smallest atmospherically relevant anions of sulfuric and nitric acid allow us to characterize structures and distinguish between clusters with a bisulfate or a nitrate core. We find that bisulfate is the main charge carrier for HSO4-·H2SO4·HNO3 but not for NO3-·H2SO4·HNO3. For the mixed dimer anion, we find evidence for the presence of two isomers: HSO4-·HNO3 and NO3-·H2SO4. Density functional calculations accompany the experimental results and provide support for these observations. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index