EXPERIMENTAL-STUDY OF THE O-H RING VIBRATIONS OF THE METHANOL TRIMER

The O-H ring vibrations of the methanol trimer have been measured empl oying molecular beam depletion spectroscopy in combination with mass s pectrometric detection and kinematic size selection. Three vibrational bands (at 3434, 3472, and 3503 cm(-1), respectively) have been identi fied as being due to the methanol trimer. The observation of three ban ds is consistent with the asymmetric ring structure predicted by theor etical calculations. (C) 1996 American Institute of Physics.