Open Access Journal

ISSN : 2456-1304 (Online)

International Journal of Engineering Research in Electronics and Communication Engineering(IJERECE)

Monthly Journal for Electronics and Communication Engineering

Open Access Journal

International Journal of Science Engineering and Management (IJSEM)

Monthly Journal for Science Engineering and Management

ISSN : 2456-1304 (Online)

Vibrational, Non-Linear Optical, Thermal And Energy Gap Studies On 4-(3-Bromophenyl)-2- Phenyl-1,3-Thiazole (BPPT): A Density Functional Theory Approach

Author : V. Vasantha Kumar 1 J. Laxmikanth Rao 2

Date of Publication :9th March 2017

Abstract: Theoretical studies have been carried out on BPPT using DFT-B3LYP method using 6-311+G basis set. The geometrical parameters of the title molecule, like bond length, bond angle and dihedral angles have been calculated and studied. The IR wavenumbers have been calculated theoretically using above mentioned method and are compared with the experimental IR wavenumbers. From this analysis, it can be seen that the vibrational frequencies obtained from B3LYP method are in good agreement with the experiment. Nonlinear optical properties like dipole moment, hyper polarizabilities and thermal properties like rotational constants, zero point vibrational energies are calculated using the same methodology. The effect of temperature on various thermodynamic properties have been calculated theoretically and reported. The frontier molecular orbital studies have been carried out to explain the charge transfer in title molecule.

Reference :

    1. Fontecave M, Ollagnier-de-Choudens, Mulliez E, Chem Rev 103 (2003) 2149.
    2. Kleemann A, Engel. J Pharmaceutical Substances, 4th Edition, 2001.
    3. Wang L Y, Zhang C X, Liu Z Q, Lio D Z, Jang Z H, Yan S P, Inorg Chem Comm 6 (2003) 1255.
    4. Parr R G, Yang W, 1989, Density Functional Theory of Atoms and Molecules, Oxford University Press.
    5. Pavan Kumar V, Narender M, Sridhar R, Nageswar Y V D and Rama Rao K, Syn Comm 37, (2007) 4331.
    6. Frisch M J, Trucks G W et. al, 2004, Gaussian Inc, Wallingford CT.
    7. Pulay P, Zhou X, Fogarasi G, in: R. Fransto (Ed.), 1993, NATO AS Series, Vol. C, 406, Kluwer, Dordrecht.

Recent Article