title: Conformational, vibrational, NMR and DFT studies of N-methylacetanilide.
abstract: A detailed conformational, vibrational, NMR and DFT studies of N-methylacetanilide have been carried out. In DFT, B3LYP method have been used with 6-31G(**), 6-311++G(**) and cc-pVTZ basis sets. The vibrational frequencies were calculated resulting in IR and Raman frequencies together with intensities and Raman depolarisation ratios. The dipole moment derivatives were computed analytically. Owing to the complexity of the molecule, the potential energy distributions of the vibrational modes of the compound are also calculated. Isoelectronic molecular electrostatic potential surface (MEP) and electron density surface were examined. (1)H and (13)C NMR isotropic chemical shifts were calculated and the assignments made are compared with the experimental values. The energies of important MO's of the compound were also determined from TD-DFT method.
authors.affiliation: Department of Chemistry, Kanchi Mamunivar Centre for Post-Graduate Studies, Puducherry 605 008, India. varjunftir@yahoo.com
authors.forename: V
authors.initials: V
authors.lastname: Arjunan
authors.forename: R
authors.initials: R
authors.lastname: Santhanam
authors.forename: T
authors.initials: T
authors.lastname: Rani
authors.forename: H
authors.initials: H
authors.lastname: Rosi
authors.forename: S
authors.initials: S
authors.lastname: Mohan
mesh_terms: D000083:Acetanilides / Q000737:chemistry*; D000577:Amides / Q000737:chemistry; D004583:Electrons; D007700:Kinetics; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D008968:Molecular Conformation; D011789:Quantum Theory; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman; D055672:Static Electricity; D013816:Thermodynamics; D014732:Vibration
chemical_list: D000083:Acetanilides; D000577:Amides; C030136:N-methylacetanilide