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Dr. Monirah A. Al-shaikh

Associate Professor

Associate Professor

كلية العلوم
Office No. 240 Third Floor Building No. 5 Science Building King Saud University
publication
Journal Article
2017

Vibrational spectroscopic investigations and molecular docking studies of biologically active 2-[4-(4-phenylbutanamido)phenyl]-5-ethylsulphonyl-benzoxazole

Alsenoy, K. Jalajaa, Monirah A. Al-Alshaikh, Y. Sheena Mary, C. Yohannan Panicker, Ali A. El-Emam, Ozlem Temiz-Arpaci, C. Van . 2017

The optimized molecular structure, vibrational wavenumbers, corresponding vibrational assignments of
2-[4-(4-phenylbutanamido)phenyl]-5-ethylsulphonyl-benzoxazole have been investigated experimentally and
theoretically using Gaussian09 software. The wavenumbers were assigned by potential energy distribution
and the frontier molecular orbital analysis is used to determine the charge transfer within the molecule. The
stability of the molecule arising from hyper-conjugative interaction and charge delocalization has been analyzed
using NBO analysis. The MEP analysis shows that the negative electrostatic potential regions are
mainly localized over the oxygen's of the carbonyl and sulfonyl groups and nitrogen atom of the benzoxazole
ring and are possible sites for electrophilic attack and the positive regions are localized over the NH group as
possible sites for nucleophilic attack. From the molecular docking study, the ligand binds at the active sites of
the protein by weak non-covalent interactions most prominent of which are H-bonding, cation-π and sigma-π
interactions.
 

Volume Number
1148
Magazine \ Newspaper
Journal of Molecular Structure
Pages
19-133
more of publication
publications

Abstract
Cancer is a broad category of disease that can affect virtually any organ or tissue in the body when abnormal cells grow
uncontrollably, invade surrounding tissue, and/or…

by Seham S. Alterary, Gamal A.E. Mostafa, Haitham Alrabiah, Monirah A. Al-Alshaikh, Maha F. El-Tohamy
2023
Published in:
Journal of Fluorescence
publications

3-(Adamantan-1-yl)-4-(4-fluorophenyl)-1-f[4-(2-methyoxyphenyl)piprazin-
1yl]-methylg-4,5-dihydro-1H-1,2,4-triazole-5-thione (AFT) was synthesized
and spectroscopic investigations have…

by Aamal A. Al-Mutairi, Y. Shyma Mary, Y. Sheena Mary, Sreejit Soman, Hanan M. Hassan, Monirah A. Al-Alshaikh & Ali A. El-Emam
2022
Published in:
Polycyclic Aromatic Compounds
publications

Nowadays, reverse osmosis is the most widely utilized strategy in membrane technology due to its continuous improvement. Recent studies have highlighted the importance of the surface…

by Seham S. Alterary, Raya M. Alyabes, Ahmed A. Alshahrani, and Monirah A. Al-Alshaikh.
2022
Published in:
Polymers