Quantum Chemical Computational Studies on 4-(1-Aminoethyl)pyridine

Abstract

The density functional theory (DFT) method combined with B3LYP and B3PW91 hybrid functional were utilized for geometrical optimization, vibrational frequencies and electronic spectral study. The B3LYP and B3PW91 levels of the time dependent-DFT with 6–311+G(d, p) basis set have been used to determine the highest occupied molecular orbital (HOMO) – the lowest unoccupied molecular orbital (LUMO) energies, absorption wavelengths, and electronic properties (total energy and energy gap) of 4-(1-aminoethyl)pyridine. Global reactivity descriptors like ionization potential, chemical hardness and electron affinity, etc. have been estimated using the B3LYP/6–311+G (d, p) and B3PW91/6–311+G (d, p) methods. The effect of the solvent has been simulated using the integral equation formalism-polarized continuum model (IEF-PCM).