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Low-N lines of the A6sigma+-X6sigma+ (1,0) band of CrH
Pradyot K Chowdhury1, Anthony J Merer, Scott J Rixon
1Department of Chemistry, University of British Columbia, 6174 University Blvd., Vancouver, BC, Canada V6T 1Z3.
Abstract:
The (1,0) band of the A6sigma+-X6sigma+ electronic transition of CrH has been observed by laser-induced fluorescence following the reaction of laser-ablated Cr atoms with methanol under supersonic free-jet cooled conditions. Rotational assignments of the levels with N < or = 3 have been made by combination differences and dispersed fluorescence experiments on selected lines. These assignments complement those made from previously-recorded Fourier transform emission spectra, in which higher-N lines were assigned. The low-N rotational levels are extensively perturbed, presumably by levels of the a4sigma+, upsilon = 1 and B6pi, upsilon = 0 states.
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