Abstract
In this study, vibrational spectral analysis of the title compound was carried out using FT-IR and FT-Raman spectroscopy in the range of 500−4000 cm−1. The vibrational analysis was aided by an electronic structure calculation based on the B3LYP/6-311++G(d,p) basis set. The molecular equilibrium geometries, IR and Raman intensities and harmonic vibrational frequencies were computed. The assignments were based on the experimental IR and Raman spectra, and a complete assignment of the observed spectra was proposed. The complete vibrational assignments were performed based on the potential energy distribution (PED). The thermodynamic properties of the title compound were calculated at different temperatures, revealing the correlations between heat capacity (C), entropy (S) and enthalpy changes (H) with temperatures. In addition, the first-order hyperpolarizability, NBO, HOMO and LUMO energies, Fukui function and the molecular electrostatic potential were computed.
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