Molecular interactions and vibrational properties of ricobendazole: Insights from quantum chemical calculation and spectroscopic methods (original) (raw)

Journal of Molecular Structure, 2021

Abstract

Abstract The structural, spectroscopic (FT-IR and FT-Raman), and physicochemical properties of ricobendazole (RBZ) has been presented with the help of combined experimental and computational approaches. A comparison between the observed and simulated spectra show good agreement with each other. The conformational analysis was performed around eight flexible bonds to predict the most stable conformers, by employing density functional theory (DFT) at B3LYP/6–311++G(d,p) level. The chemical reactivity has been demonstrated in terms of frontier molecular orbitals (HOMO-LUMO) energy gap, molecular electrostatic potential (MEP) surface, and global reactivity. The local reactivity descriptors explored an idea about the donor/acceptor/free radical reactive sites present in the molecule. Natural bond orbital (NBO) analysis was performed to study the interactions between bonding and antibonding orbitals. The intramolecular hydrogen bonding interactions were demonstrated using QTAIM theory. Binding sites against three targets such as Poly [ADP-ribose] polymerase-1, MAP kinase p38 alpha, and Adenosine A2a receptor were identified by molecular docking analysis as RBZ is believed to inhibit against them.

Bhawani Joshi hasn't uploaded this paper.

Let Bhawani know you want this paper to be uploaded.

Ask for this paper to be uploaded.