Rotational excitation of OH in collisions with CO, N2, and CO2

M.C. Beek, van, K.R.A.M. Schreel, J.J. Meulen, ter

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Relative state-to-state cross sections are obtained for OH colliding with CO, N2, and CO2. Hexapole state selection is used to prepare a beam of OH molecules in the upper ¿-doublet component of the lowest rotational state. The collision induced rotational energy transfer is monitored state selectively by means of LIF (laser induced fluorescence) spectroscopy. A study is made of the symmetry effects in the obtained cross sections. The results are compared with previously reported cross sections for Ar, He, and H2. A general propensity is found for parity conserving transitions to the ¿3/2, J = and ¿1/2, J = ½ states
Original languageEnglish
Pages (from-to)1302-1309
Number of pages8
JournalJournal of Chemical Physics
Issue number4
Publication statusPublished - 1998


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