ROTATIONAL SPECTRA OF THE MIXED RARE-GAS DIMERS NE-KR AND AR-KR

Pure rotational spectra of several isotopomeric species of the rare ga s dimers Ne-Kr and Ar-Kr have been measured using a pulsed jet cavity microwave Fourier transform spectrometer. Equilibrium internuclear dis tances have been evaluated by taking advantage of the isotopic data, f or both these dimers and three Xe-containing dimers, whose spectra wer e reported earlier [Jager et al., J. Chem. Phys. 99, 919(1993)]. The d ipole moments have been estimated using the ''pi/2-pulse'' excitation condition. Kr-83 nuclear quadrupole hyperfine structure has been obser ved in some rotational transitions of Ne-20-Kr-83 and of Ar-Kr-83, and the corresponding quadrupole coupling constants have been derived. (C ) 1995 American Institute of Physics.