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- W2886166621 abstract "Molecular structure, chemical and physical reactivity, spectroscopic behavior, intermolecular interactions play an important role in understanding the biological nature of pharmaceutical drugs. The objective of the study is to combine the spectroscopic and computational methodology for the investigation of structural behavior of ezetimibe (EZT). Computational study was done on monomeric, dimeric and trimeric models of EZT using B3LYP/6-311G(d,p). Hydrogen bond interactions were taken into consideration to validate the theoretical results with the experimental one. Results obtained for trimeric model were better than monomer and dimer. HOMO-LUMO energy band gap shows that the chemical reactivity calculated using dimeric and trimeric model is higher than that of monomeric model. Higher value of electrophilicity index (ω = 2.5654 eV) also confirms that trimer behaves as a strong electrophile in comparison with monomer and dimer. To examine the hyperconjugation interactions and the stability of the molecule, natural bond analysis (NBO) was done on dimer and trimer of EZT. Nature and the strength of hydrogen bonds were examined by quantum theory of atoms in molecules (QTAIM). Binding energy calculated from counterpoise method was −7.40 kcal/mol for dimer and −21.47 kcal/mol for trimer." @default.
- W2886166621 created "2018-08-22" @default.
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- W2886166621 date "2019-01-01" @default.
- W2886166621 modified "2023-09-27" @default.
- W2886166621 title "Combined spectroscopic and quantum chemical approach to study the effect of hydrogen bonding interactions in ezetimibe" @default.
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- W2886166621 doi "https://doi.org/10.1016/j.saa.2018.08.023" @default.
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