ROTAMERS AND VIBRATIONS OF RESORCINOL OBTAINED BY SPECTRAL HOLE-BURNING

(1 + 1)REMPI and hole-burning spectra of resorcinol are recorded. Unde r the conditions of free-jet expansion only two rotamers significantly contribute to the spectrum. The bands of the REMPI spectrum can be as signed as electronic origins and vibrational transitions of the two ro tamers. In order to determine the stabilities of the rotamers ah initi o Hartree-Fock calculations using the 6-31G(d, p) and 6-311 + + G(d, p ) basis sets are carried out. The data of a complete vibrational analy sis at the 6-31G(d, p) level are compared with experimental infrared a nd Raman frequencies. The REMPI signals are assigned using the normal vibrations calculated for the electronic ground state.