Rotational spectrum and structure of thioborine: HBS

Abstract

The millimeter-wave spectra of eight isotopic species of thioborine have been observed. This unstable molecule displays the rotational spectrum of a linear rotor. For the most abundant isotopic species, H11B32S, the rotational and centrifugal distortion constants are B0=19,083.006 MHz and D0=21.89 kHz. Complete substitution structures have been evaluated eight different ways from the variety of isotopic species observed. The resulting mean values for the B-H and S-B distances (in angstrom units) are 1.1692 and 1.5994, respectively.