Infrared bound to quasibound vibration-rotation spectrum of HeH+ and its isotopes |
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| Authors: | Alan Carrington Richard A Kennedy Timothy P Softley Paul G Fournier Elisabeth G Richard |
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| Institution: | Department of Chemistry, University of Southampton, Hampshire SO9 5NH, UK;Spectroscopie de Translation, Unité CNRS 03-4241, Bâtiment 478, Université Paris-Sud, 91405 Orsay, France |
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| Abstract: | The positions and widths of all the bound and rotationally quasibound levels of the ground states of 4HeH-, 4HeD′-3HeH- and 3HeD′ have been calculated using an adiabatic potential. From these theoretical data the positions of bound to quasibound vibration-rotation transitions lying in the range of the carbon dioxide laser 0880 to 1090 cm 1 have been predicted. Infrared predissociation spectroscopy of Doppler-tuned ion beams has been used to determine the positions and widths of many of the resonances. There is excellent agreement between the theoretical predictions and the experimental measurements. |
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