title: Vibrational spectroscopic, molecular structure, first hyperpolarizability and NBO studies of 4'-methylbiphenyl-2-carbonitrile.
abstract: The FT-IR, FT-Raman spectra and XRD of 4'-methylbiphenyl-2-carbonitrile were recorded and analyzed. The frequencies were computed at various density functional theoretical levels using Gaussian09 software package. The data obtained from theoretical calculations were used to assign vibrational bands obtained in infrared and Raman spectra of the studied molecule. Potential energy distribution of the normal modes of vibrations were done using GAR2PED program. The geometrical parameters of the title compound are in agreement with XRD crystal structure data. The first hyperpolarizability is comparable with the reported values of similar derivatives and is an attractive object for future studies of non linear optics. The stability of the molecule arising from hyper-conjugative interaction and charge delocalization has been analyzed using NBO analysis. According to XRD data, the dihedral angles between the mean planes of the two benzene rings is 44.7° and the crystal packing is stabilized by weak intermolecular π-π stacking interactions.
authors.affiliation: Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore, India.
authors.forename: Manpreet
authors.initials: M
authors.lastname: Kaur
authors.forename: Y Sheena
authors.initials: YS
authors.lastname: Mary
authors.forename: Hema Tresa
authors.initials: HT
authors.lastname: Varghese
authors.forename: C
authors.initials: C
authors.lastname: Yohannan Panicker
authors.forename: H S
authors.initials: HS
authors.lastname: Yathirajan
authors.forename: M S
authors.initials: MS
authors.lastname: Siddegowda
authors.forename: Christian
authors.initials: C
authors.lastname: Van Alsenoy
mesh_terms: D001713:Biphenyl Compounds / Q000737:chemistry*; D018360:Crystallography, X-Ray; D008958:Models, Molecular; D009570:Nitriles / Q000737:chemistry*; D011789:Quantum Theory; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman
chemical_list: D001713:Biphenyl Compounds; D009570:Nitriles; C571699:4'-methylbiphenyl-2-carbonitrile