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Brauer et al. 2006
Brauer, C.S., Sedo, G. and Leopold, K.R. (2006). Dipole moment of the H2SO4-H2O complex. Geophysical Research Letters 33: doi: 10.1029/2006GL028110. issn: 0094-8276.

Stark effect measurements have been performed on three rotational transitions of the H2SO4-H2O complex using pulsed-nozzle Fourier transform microwave spectroscopy. The total dipole moment (¿T), as well as its projection onto the a-inertial axis of the complex (¿a), have been determined for each of two tunneling states, designated A and B. For the A state, ¿T is 3.024(94) D and ¿a is 2.630(20) D. For the B state, these values are 3.052(17) and 2.6402(65) D, respectively. Ab initio calculations at the HF/aug-cc-pVTZ, MP2/aug-cc-pVDZ, MP2/aug-cc-pVTZ, MP2/aug-cc-pVQZ, and MP3/aug-cc-pVDZ level/basis set have been performed and compared with experimental values for both H2SO4 and H2SO4-H2O. Models for homogeneous nucleation requiring the dipole moment of the H2SO4-H2O adduct should use the B-state value of ¿T = 3.052(17) D.

BACKGROUND DATA FILES

Abstract

Keywords
Atmospheric Composition and Structure, Aerosols and particles (0345, 4801, 4906), Atmospheric Composition and Structure, Troposphere, constituent transport and chemistry, Atmospheric Processes, Clouds and aerosols
Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/
Publisher
American Geophysical Union
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