Journal article

Mixing laser spectroscopy and mass spectrometry-infrared spectra of metal cation-hydrogen complexes

Viktoras Dryza, Berwyck LJ Poad, Evan J Bieske

EUROPEAN JOURNAL OF MASS SPECTROMETRY | SAGE PUBLICATIONS LTD | Published : 2010

Abstract

We describe recent experiments in which mass spectrometry and laser spectroscopy are combined to characterize Li(+)-H(2), Na(+)-H(2), B(+)-H(2), and Al(+)-H(2) complexes in the gas-phase. The infrared spectra, which feature full resolution of rotational sub-structure, are recorded by monitoring M(+) photo fragments as the infrared wavelength is scanned. The spectra deliver detailed information on the way in which a hydrogen molecule is attached to a metal cation including the intermolecular separation, the force constant for the intermolecular bond and the H-H stretching frequency. The complexes all possess T-shaped equilibrium geometries and display a clear correlation between the length an..

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University of Melbourne Researchers