Vibrational spectra of CO2-electron donor-acceptor complexes from ab initio

The 1:1 electron donor-acceptor complexes of CO2 formed with alcohols, methanol and ethanol, and with acetone in context of ab initio calculations are examined. The division of the v(sub 2) bending mode of CO2 and v(sub s)(OH) stretching mode of alcohols or the anti symmetric v(sub a)(CCC) and symmetric v(sub s)(CO) stretching modes of acetone are highlighted.