Vibrational spectroscopic, molecular structure, first hyperpolarizability and NBO studies of 4′-methylbiphenyl-2-carbonitrile

Kaur, Manpreet and Mary, Y. Sheena and Varghese, Hema Tresa and Panicker, C. Yohannan and Yathirajan, H. S. and Siddegowda, M. S. and Alsenoy, Christian Van (2012) Vibrational spectroscopic, molecular structure, first hyperpolarizability and NBO studies of 4′-methylbiphenyl-2-carbonitrile. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 98. 91 - 99. ISSN 1873-3557

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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.

Item Type: Article
Uncontrolled Keywords: DFT, Benzonitrile, NBO analysis, PED, Hyperpolarizability
Subjects: C Chemical Science > Chemistry
Divisions: Department of > Chemistry
Depositing User: MUL SWAPNA user
Date Deposited: 12 Jul 2019 06:20
Last Modified: 12 Jul 2019 06:20

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