A Comparative study of the characteristic vibrations of methyl acrylate, methyl methacrylate, methyl trans crotonate and methyl -3-methoxy-2-propenoate

A relative quantum chemical study of the vibrational spectra of of methyl acrylate (MA), methyl methacrylate (MMA), methyl trans crotonate (MTC) and methyl -3-methoxy-2-propenoate(MMP) in their electronic ground state has been reported. Based on the Hartree-Fock and Density Functional Theory with extended basis sets and polarization functions calculations the results of the possible conformers are compared in terms of frequency, form and intensity of vibrations and potential energy distribution across the symmetry coordinates in ground state. A relationship between the bond length and bond order is also studied.