- Matrix Isolation and Mass Spectrometric Studies of the Vaporization of Alkali Metal Oxoselenium Salts: Characterization of Molecular M2SeO4, M2SeO3, and MSeO2
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Solid samples of alkali metal selenates (M2SeO4) and selenites (M2SeO3) have been heated in vacuo, and the vaporization products studied by using a combination of mass spectrometric and matrix isolation IR techniques.Although some decomposition was observed, evidence was obtained for the existence of the ternary molecular salts M2SeO4 and M2SeO3 (M = Na, K, Rb, Cs) and also for the novel Se(III) species MSeO2.The molecular symmetries are identified as D2d, Cs, and C2v respectively, on the basis of vibrational selection rules, and the various O-Se-O bond angles in these species are estimated from selenium isotope shifts and relative band intensities.
- Brisdon, Alan K.,Gomme, Robin A.,Ogden, J. Steven
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p. 2927 - 2931
(2007/10/02)
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