High-resolution infrared spectroscopy of acetylene clusters
Abstract
A computer-controlled F-centre laser has been used to measure the infrared spectra of acetylene clusters in the range 3250–330 cm–1. The rotational structures of spectra associated with the dimer and trimer have been assigned, and results for larger clusters reported. There is evidence for two dimer structures, for sub-bands that originate from vibrationally excited van der Waals modes, and for coupling, presumably Coriolis, with as many as four other modes.