Microwave Spectra and Structures of H_2S-CuCl and H_2O-CuCl.

Details Microwave Spectra and Structures of H_2S-CuCl and H_2O-CuCl. Microwave Spectra and Structures of H_2S-CuCl and H_2O-CuCl.

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010mss..confemh03w&link_type=abstract

"International Symposium On Molecular Spectroscopy, 65th Meeting, Held 21-25 June, 2010 at Ohio State University. http://molspec

Physics

Mini-Symposium: Metal Containing Molecules

Scientific paper

A Balle-Flygare FT-MW spectrometer coupled to a laser ablation source has been used to measure the pure rotational spectra of H2S-CuCl and H2O-CuCl. Both molecules are generated via laser ablation (532 nm) of a metal rod in the presence of CCl4, argon, a low partial pressure of H2S or H2O and are stabilized by supersonic expansion. Rotational constants and centrifugal distortion constants have been measured for eight isotopologues of H2S-CuCl with substitutions available at the copper, chlorine and hydrogen atoms. Transitions in the spectra of nine isotopologues of H2O-CuCl have been measured with isotopic substitutions achieved for every atom. The spectra of both H2S-CuCl and H2O-CuCl are consistent with a linear arrangement of sulphur or oxygen, metal and chlorine atoms. The structure of H2S-CuCl is pyramidal with CS symmetry. The structure of H2O-CuCl is either C2v planar at equilibrium or CS pyramidal but with a low potential-energy barrier to planarity such that the v=0 and 1 states associated with the motion that inverts the configuration at the O atom are well separated. Nuclear quadrupole coupling constants have been measured for the chlorine and copper atoms in each molecule. Nuclear spin-rotation constants have been determined for the copper atom.

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