SUBMILLIMETER-WAVE SPECTROSCOPY OF NEGATIVE IONS: $SH^{-}, SD^{-}$

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1998

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Ohio State University

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For the first time submillimeter-wave transitions of an anion have been firmly identified. One transition of SH−(J=0−1,564421.869MHz) and two of SD−(J=0−1,292359.129MHz;J=1−2,584629.519MHz) have been observed. The negative ions were created in the positive column of an electric discharge in a mixture of H2S and argon. By studying the Doppler shift brought about the anion by the motion of the charged species in the electric field of the discharge, we were able to distinguish between positively and negatively charged ions and neutral.

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Author Institution: Laboratoire de Spectroscopie Hertzienne, Universite des Sciences et Technologies de Lille

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http://hdl.handle.net/1811/19089

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Abstracts of OSU International Symposium on Molecular Spectroscopy 1990-1999