Solvent effects in OH overtone spectra of methanol

Abstract

The solvent shifts of the OH and OD stretching overtone frequencies have been measured in CCl₄, CH₂Cl₂, CHCl₃, C₅H₁₂, CS₂ and C₆H₆. It is found that the anharmonicity constants are almost identical, but the mechanical frequencies change as a function of the solvent used. The results are interpreted by a theory for non-specific interactions for very weakly interacting solvents.