title: FTIR, FT-Raman spectra and ab initio DFT vibrational analysis of 2-bromo-4-methyl-phenylamine.
abstract: The FTIR and FT-Raman spectra of 2-bromo-4-methyl-phenylamine (BMP) have been recorded. From the standard geometrical parameters the geometry of BMP was optimized at ab initio and DFT levels of theory with complete relaxation in the potential energy surface using 6-311+g(d,p) and 6-311+g(2df,2p) basis sets. Several thermodynamic parameters were also calculated for the minimum energy conformer at ab initio and DFT level of theories. The harmonic vibrational frequencies were calculated and the scaled values have been compared with experimental FTIR and FT-Raman spectra. Majority of the computed wavenumbers were found to be in good agreement with the experimental observations. The experimental spectra also coincide satisfactorily with those of theoretically constructed bar type spectrograms.
authors.affiliation: Department of Physics (Engg.), Annamalai University, Annamalai Nagar 608002, India. sundaraganesan_n2003@yahoo.co.in
authors.forename: N
authors.initials: N
authors.lastname: Sundaraganesan
authors.forename: H
authors.initials: H
authors.lastname: Saleem
authors.forename: S
authors.initials: S
authors.lastname: Mohan
authors.forename: M
authors.initials: M
authors.lastname: Ramalingam
authors.forename: V
authors.initials: V
authors.lastname: Sethuraman
mesh_terms: D000814:Aniline Compounds / Q000737:chemistry*; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D019277:Entropy; D008958:Models, Molecular; D008968:Molecular Conformation; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods; D013059:Spectrum Analysis, Raman; D013816:Thermodynamics; D014052:Toluidines / Q000737:chemistry*; D014732:Vibration
chemical_list: C510119:2-bromo-4-methylphenylamine; D000814:Aniline Compounds; D014052:Toluidines