INTEGRATED-INTENSITIES OF OH VIBRATIONAL OVERTONES IN ALCOHOLS

Intensities for several OH vibrational overtone bands have been measur ed for vapor-phase methanol, ethanol, and isopropanol. The trends in t he intensities as a function of excitation level have been modeled by two empirical approaches, yielding intensity predictions for the highe r overtone transitions, up to 7 nu(OH). These methods were also applie d to recent HNO3 overtone measurements, resulting in new intensity pre dictions for higher, photochemically active overtone bands, which are compared with ab initio estimates. (C) 1998 Elsevier Science B.V. All rights reserved.