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Optical properties of 1,2-diaryl benzimidazole derivatives - a combined experimental and theoretical studies
J Jayabharathi1, V Thanikachalam, K Jayamoorthy
1Department of Chemistry, Annamalai University, Annamalainagar 608 002, Tamilnadu, India. jtchalam2005@yahoo.co.in
Abstract:
Some novel 1,2-diaryl benzimidazole derivatives have been designed, synthesized and characterized by mass, (1)H, (13)C-NMR spectral studies and single crystal XRD. The charge distribution has been calculated from the atomic charges by non-linear optical (NLO) and natural bond orbital (NBO) analyses have been calculated by abinitio method. Synthesized 1,2-diaryl benzimidazole derivatives have the largest μgβ0 value and can be used as potential NLO materials. Analysis of the molecular electrostatic potential (MEP) energy surface exploited the region for non-covalent interactions in the molecule. Calculated bond lengths, bond angles and dihedral angles are found to be slightly higher than that of X-ray diffraction values of its experimental datas.
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