MICROWAVE SPECTRA OF THE ISOTOPOMERS OF HCS~+ AND ITS SUBSTITUTION STRUCTURE

摘要

Rotational transitions of the isotopomers of HCS~+ in their ground vibrational states were observed in laboratory, and the frequencies were measured in the millimeter-and submillimeter-wave range of 72-396 GHz. The rotational constant B_0 was determined to be 18018.262(3), 20444.495(3), and 20991.572(4) MHz, and the centrifugal distortion constant D_0 was determined to be 14.56(2), 19.83(3), and 20.82(3) kHz for DCS~+, H~(13)CS~+, and HC~(34)S~+, respectively, with the 3~σ deviations in parentheses. The substitution bond lengths of HCS~+ were derived to be r~s(HC) = 1.0789 A and r_s(CS) = 1.4782 A.