Infrared spectrum and normal coordinate analysis of p-chloroacetophenone

Abstract The i.r. spectrum of p -chloroacetophenone in solution has been recorded in the range 4000-150cm −1 . All the fundamentals (except those related to the internal torsions) have been identified and described; a normal coordinate analysis has been performed to confirm the proposed assignments. The calculations were carried out by assuming a C S symmetry for the molecule and adopting a force field of the valence type.