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Detailed Quantum Mechanical Studies on Bioactive Benzodiazepine Derivatives and Their Adsorption Over Graphene Sheets

Detailed Quantum Mechanical Studies on Bioactive Benzodiazepine Derivatives and Their Adsorption Over Graphene Sheets

Jamelah S Al-Otaibi

Spectrochim Acta A Mol Biomol Spectrosc. 2020 Jul 5;235:118333.

PMID: 32272424

Abstract:

Estazolam (Z1) and related derivatives, adinazolam (Z2), alprazolam (Z3), 4-hydroxyalprazolam (Z4) and triazolam (Z5) have been studied by using various computational tools to analyze their geometry and spectral characteristics. The compounds were found to interact with graphene monolayer results shows that there is enhancement in various physico-chemical descriptors and surface enhanced Raman spectra (SERS). The various reactive descriptors obtained from the FMO analysis predict the reactive nature of the compound. The various lone pair/sigma to pi conjugation was analyzed using NBO formalism, which provides valuable information about intra molecular electron transfer which is vital in predicting the inherent stability of the molecule. Simulated electronic spectra using TD-DFT and CAM-B3LYP functional are discussed in detail with respect to electronic transitions and light harvesting efficiency. Suitability of candidates as a photo sensitizer in dye sensitized solar cells was studied and 4-Hydroxyalprazolam is identified as a suitable candidate. Nucleophilic and electrophilic regions of the molecules are identified using MESP, which adds to the reactivity information. It can be seen that the highest interaction energy has been obtained in the case of the Z5-graphene system, while the lowest interaction energy has been obtained in the case of the Z1-graphene system. Docking indicates that the ligands adsorbed over graphene also form stable complexes with the receptors as indicated by the high binding affinity energy values.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP37945065	Estazolam Related Compound A		37945-06-5	Price

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