Theoretical investigation of the rovibrational fine-structure spectrum of argon-imidogen in its electronic ground state.
Based on an ab initio potential energy surface for the X3A'' ground state of the Ar-NH van der Waals complex its rovibrational fine-structure spectrum has been calcd. The authors find four Ar-NH stretching vibrational modes with the NH radical in a nearly unperturbed n = 0 rotational state and one vibrational mode with NH in its first excited rotational level n = 1. The results are discussed and interpreted by means of pseudodiat. model calcns.
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