CH3OH, vibrational modes

Recent experimental studies on interference effects in solution, and on collisional vibrational energy transfer between molecules in solution, provide some insight into the molecular time scales of these relaxation events. For example [171], the time scale for transfer of population to die vibrational modes in liquid CH3OH is on thd order of 5 to 15ps [172], Further, studies of the preparation of coherent superpositions of states in solution show that phase coherences of molecules exist in solution for time scales greater than 100 fs [173, 174], -- i... 

Alcohols. The vibrational mode, in which the hydrogen atom moves out of the C—O—H plane, derives from a hindered rotation of the O—H group in the gaseous molecule. This vibration has a mean frequency of about 225 cm for gaseous CH3OH (1965, 324). 

Table 1 Vibrational mode assignments for Sc + CH3OH reaction products (jcm 2)...

While for a long time the radio line near 22 GHz was the only known water maser transition, in recent years various other water maser lines have been detected at millimeter and submillimeter wavelengths, some of them from the vibrationally excited bending mode. Masers can be emitted by several molecules The following species have been observed in stimulated emission from astronomical environments OH, CH, H22CO, H2O, NH3, CH3OH, SiS, HC3N, SiO, HCN, H. 

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