ANALYSIS OF VIBRATION-ROTATIONAL SPECTRA OF KH

A modified Dunham potential model developed recently was applied to th e analysis of vibration-rotational spectra of KH. The spectral data se t consisted of 107 lines from the literature and an additional 12 line s measured in the present study. In total 119 spectral lines for four isotopomers were simultaneously fitted to a single set of only 11 mole cular parameters, U-omega, U-B, a(1), a(2), a(3), a(4), a(5), Delta(om ega)(H), Delta(B)(. H) and Delta(al)(H), well within experimental erro rs. Values of omega(e)((KH)-K-39) and r(e) within the Born-Oppenheimer approximation are 986.6484(41) cm(-1) and 224.0164(10) pm, respective ly, assuming that Delta(omega)(K) and Delta(B)(K) are equal to zero. ( C) 1997 Elsevier Science B.V.