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Lakhera S, Devlal K, Rana M, Dhuliya V. Influence of the substitution of different functional groups on the gas sensing and light harvesting efficiency of zero-dimensional coronene quantum dot: A first principle DFT study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123737. [PMID: 38064960 DOI: 10.1016/j.saa.2023.123737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 12/01/2023] [Accepted: 12/03/2023] [Indexed: 01/13/2024]
Abstract
The present study accounts for the structural and electronic properties of a zero-dimensional coronene quantum dot (QD) and its substituted structures with seven different functional groups. The substitution of functional groups lead to the alteration of the centrosymmetric geometry of the coronene flake and thus, incredible properties were observed for the functionalized QDs. The increment in the band gap after the substitution of the functional groups was responsible for the increase in the chemical stability. The cohesive energy however decreased for the functional QDs. Fourier transform Infrared spectra were traced for all the QDs to confirm the availability of the functional groups and their participation in the chemical reactivity. After the substitution of functional groups, the extremely enhanced light harvesting efficiency of functionalized QDs was obtained. Furthermore, the sensing capability of the functionalized QDs for CO, CO2, and NH3 was also calculated and it was found that C-cyano, C-nitro, C-nitroso, C-pyrrolidine, and C-thionyl QDs have better sensing capabilities for CO2 molecules. C-pyrrolidine had the highest value of light harvesting efficiency of about 96%. This reflects the potential photosensitive candidature of C-pyrrolidine. Therefore, the present study sets a perfect benchmark for designing and fabricating efficient photosensitive materials and gas-sensing devices using the introduced QDs in the near future.
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Affiliation(s)
- Shradha Lakhera
- Department of Physics, School of Sciences, Uttarakhand Open University, Haldwani 263139, Uttarakhand, India
| | - Kamal Devlal
- Department of Physics, School of Sciences, Uttarakhand Open University, Haldwani 263139, Uttarakhand, India
| | - Meenakshi Rana
- Department of Physics, School of Sciences, Uttarakhand Open University, Haldwani 263139, Uttarakhand, India.
| | - Vivek Dhuliya
- Department of Physics, Gurukula Kangri (Deemed to be University), Haridwar 249404, Uttarakhand, India
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Abdullahi M, Uzairu A, Shallangwa GA, Mamza PA, Ibrahim MT, Chandra A, Goel VK. Molecular modelling studies of substituted indole derivatives as novel influenza a virus inhibitors. J Biomol Struct Dyn 2023:1-20. [PMID: 37964590 DOI: 10.1080/07391102.2023.2280735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 11/01/2023] [Indexed: 11/16/2023]
Abstract
The emergence of drug-resistant strains motivate researchers to find new innovative anti-IAV candidates with a different mode of action. In this work, molecular modelling strategies, such as 2D-QSAR, 3D-QSAR, molecular docking, molecular dynamics, FMOs, and ADMET were applied to some substituted indoles as IAV inhibitors. The best-developed 2D-QSAR models, MLR (Q2 = 0.7634, R2train = 0.8666) and ANN[4-3-1] (Q2 = 0.8699, R2train = 0.8705) revealed good statistical validation for the inhibitory response predictions. The 3D-QSAR models, CoMFA (Q2 = 0.504, R2train = 0.805) and CoMSIA/SEDHA (Q2 = 0.619, R2train = 0.813) are selected as the best 3D models following the global thresholds. In addition, the contour maps generated from the CoMFA and CoMSIA models illustrate the relationship between the molecular fields and the inhibitory effects of the studied molecules. The results of the studies led to the design of five new molecules (24a-e) with enhanced anti-IAV activities and binding potentials using the most active molecule (24) as the template scaffold. The conformational stability of the best-designed molecules with the NA protein showed hydrophobic and H-bonds with the key residues from the molecular dynamics simulations of 100 ns. Furthermore, the global reactivity indices from the DFT calculations portrayed the relevance of 24c in view of its smaller band gap as also justified by our QSAR and molecular simulation studies.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Mustapha Abdullahi
- Department of Chemistry, Faculty of Physical Sciences, Ahmadu Bello University, Zaria, Nigeria
- Department of Pure and Applied Chemistry, Faculty of Physical Sciences, Kaduna State University, Kaduna, Nigeria
| | - Adamu Uzairu
- Department of Chemistry, Faculty of Physical Sciences, Ahmadu Bello University, Zaria, Nigeria
| | - Gideon Adamu Shallangwa
- Department of Chemistry, Faculty of Physical Sciences, Ahmadu Bello University, Zaria, Nigeria
| | - Paul Andrew Mamza
- Department of Chemistry, Faculty of Physical Sciences, Ahmadu Bello University, Zaria, Nigeria
| | - Muhammad Tukur Ibrahim
- Department of Chemistry, Faculty of Physical Sciences, Ahmadu Bello University, Zaria, Nigeria
| | - Anshuman Chandra
- School of Physical Science, Jawaharlal Nehru University, New Delhi, India
| | - Vijay Kumar Goel
- School of Physical Science, Jawaharlal Nehru University, New Delhi, India
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Photovoltaic Characteristics of Organic Heterocyclic 2,9-dimethyl Quinacridone in Different Solvents Using DFT Approach. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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4
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Investigation on the molecular, Electronic, Biological and Spectroscopic properties of a novel cobalt complex: An intuition from an experimental and computational perspective. Polyhedron 2023. [DOI: 10.1016/j.poly.2023.116369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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Akman S, Akkoc S, Zeyrek CT, Muhammed MT, Ilhan IO. Density functional modeling, and molecular docking with SARS-CoV-2 spike protein (Wuhan) and omicron S protein (variant) studies of new heterocyclic compounds including a pyrazoline nucleus. J Biomol Struct Dyn 2023; 41:12951-12965. [PMID: 36709442 DOI: 10.1080/07391102.2023.2169765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 01/11/2023] [Indexed: 01/30/2023]
Abstract
Nowadays, different vaccines and antiviral drugs have been developed and their effectiveness has been proven against SARS-CoV-2. Pyrazoline derivatives are biologically active molecules and exhibit broad-spectrum biological activity properties. In this scope, four new molecules (4a-d) including a pyrazoline core were synthesized in order to predict their antiviral properties theoretically. Compounds 4a-d were purified by the crystallization method. The structures of 4a-d were completely characterized by NMR, IR, and elemental analysis. The molecular structures of the compounds in the ground state have been optimized using density functional theory with the B3LYP/6-31++G(d,p) level. The quantum chemical parameters were predicted by density functional theory calculations. Moreover, the molecular docking studies of 4a-d with SARS-CoV-2 Spike protein (Wuhan) and omicron S protein (variant) were presented to investigate and predict potential interactions. The binding sites, binding types and energies, bond distances of the non-covalent interactions and calculated inhibition constants (calc. Ki) as a consequence of molecular docking for 4a-d were presented in this study. Furthermore, the stability of the protein-4a complex obtained from the docking was investigated through molecular dynamics simulation.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Soner Akman
- Faculty of Science, Department of Chemistry, Erciyes University, Kayseri, Turkey
| | - Senem Akkoc
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Suleyman Demirel University, Isparta, Turkey
- Faculty of Engineering and Natural Sciences, Bahçeşehir University, Istanbul, Turkey
| | - Celal Tugrul Zeyrek
- Department of Medical Services and Techniques, Çankırı Karatekin University, Çankırı, Turkey
| | - Muhammed Tilahun Muhammed
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Suleyman Demirel University, Isparta, Turkey
| | - Ilhan Ozer Ilhan
- Faculty of Science, Department of Chemistry, Erciyes University, Kayseri, Turkey
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Kanagavalli A, Jayachitra R, Thilagavathi G, Elangovan N, Sowrirajan S, Thomas R. Synthesis, characterization, computational, excited state properties, wave function, and molecular docking studies of (E)-4-((2-hydroxybenzylidene)amino)N-(thiazol-2-yl) benzenesulfonamide. J INDIAN CHEM SOC 2023. [DOI: 10.1016/j.jics.2023.100885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Rajimon K, Elangovan N, Amir Khairbek A, Thomas R. Schiff bases from chlorine substituted anilines and salicylaldehyde: Synthesis, characterization, fluorescence, thermal features, biological studies and electronic structure investigations. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.121055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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8
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Al-Otaibi JS, Sheena Mary Y, Shyma Mary Y, Thomas R. Electronic Structure, Solvation Effects and Wave Function Based Properties of a New Triazole Based Symmetric Chromene Derivative of Apigenin. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2055583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Jamelah S. Al-Otaibi
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | | | | | - Renjith Thomas
- Deparment of Chemistry, St Berchmans College, (Autonomous), Mahatma Gandhi University, Changanassery, Kerala, India
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Pooventhiran T, Marondedze EF, Govender PP, Bhattacharyya U, Rao DJ, Aazam ES, Kuthanapillil JM, E TJ, Thomas R. Energy and reactivity profile and proton affinity analysis of rimegepant with special reference to its potential activity against SARS-CoV-2 virus proteins using molecular dynamics. J Mol Model 2021; 27:276. [PMID: 34480634 PMCID: PMC8416574 DOI: 10.1007/s00894-021-04885-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 08/18/2021] [Indexed: 12/23/2022]
Abstract
Rimegepant is a new medicine developed for the management of chronic headache due to migraine. This manuscript is an attempt to study the various structural, physical, and chemical properties of the molecules. The molecule was optimized using B3LYP functional with 6-311G + (2d,p) basis set. Excited state properties of the compound were studied using CAM-B3LYP functional with same basis sets using IEFPCM model in methanol for the implicit solvent atmosphere. The various electronic descriptors helped to identify the reactivity behavior and stability. The compound is found to possess good nonlinear optical properties in the gas phase. The various intramolecular electronic delocalizations and non-covalent interactions were analyzed and explained. As the compound contain several heterocyclic nitrogen atoms, they have potential proton abstraction features, which was analyzed energetically. The most important result from this study is from the molecular docking analysis which indicates that rimegepant binds irreversibly with three established SARS-CoV-2 proteins with ID 6LU7, 6M03, and 6W63 with docking scores − 9.2988, − 8.3629, and − 9.5421 kcal/mol respectively. Further assessment of docked complexes with molecular dynamics simulations revealed that hydrophobic interactions, water bridges, and π–π interactions play a significant role in stabilizing the ligand within the binding region of respective proteins. MMGBSA-free energies further demonstrated that rimegepant is more stable when complexed with 6LU7 among the selected PDB models. As the pharmacology and pharmacokinetics of this molecule are already established, rimegepant can be considered as an ideal candidate with potential for use in the treatment of COVID patients after clinical studies.
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Affiliation(s)
- T Pooventhiran
- Department of Chemistry, St Berchmans College (Autonomous), Mahatma Gandhi University, Changanassery, Kerala, India
| | - Ephraim Felix Marondedze
- Department of Chemical Sciences, Doornfontein Campus, University of Johannesburg, P. O. Box 17011, Johannesburg, 2028, South Africa
| | - Penny Poomani Govender
- Department of Chemical Sciences, Doornfontein Campus, University of Johannesburg, P. O. Box 17011, Johannesburg, 2028, South Africa
| | - Utsab Bhattacharyya
- Department of Chemistry, St Berchmans College (Autonomous), Mahatma Gandhi University, Changanassery, Kerala, India
| | - D Jagadeeswara Rao
- Department of Physics, Dr. Lankapalli Bullayya College, Visakhapatnam, Andhra Pradesh, India
| | - Elham S Aazam
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 23622, Saudi Arabia
| | - Jinesh M Kuthanapillil
- Department of Chemistry, St Berchmans College (Autonomous), Mahatma Gandhi University, Changanassery, Kerala, India
| | - Tomlal Jose E
- Department of Chemistry, St Berchmans College (Autonomous), Mahatma Gandhi University, Changanassery, Kerala, India
| | - Renjith Thomas
- Department of Chemistry, St Berchmans College (Autonomous), Mahatma Gandhi University, Changanassery, Kerala, India.
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Sheena Mary Y, Shyma Mary Y, Temiz-Arpaci O, Yadav R, Celik I. DFT, docking, MD simulation, and vibrational spectra with SERS analysis of a benzoxazole derivative: an anti-cancerous drug. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01659-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Mary YS, Mary YS, Resmi KS, Sarala S, Yadav R, Celik I. Modeling the structural and reactivity properties of hydrazono methyl-4H-chromen-4-one derivatives-wavefunction-dependent properties, molecular docking, and dynamics simulation studies. J Mol Model 2021; 27:186. [PMID: 34036470 DOI: 10.1007/s00894-021-04800-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 05/17/2021] [Indexed: 11/29/2022]
Abstract
This study explains the vibration and interaction of three pharmaceutically active hydrazine derivatives, (E)-3-((2-(2,5-difluorophenyl)hydrazono)methyl)-4H-chromen-4-one (DFH), (E)-3-((2-(4-(trifluoromethyl)phenyl)hydrazono)methyl)-4H-chromen-4-one (TMH), and (E)-3-((2-(3,5-bis(trifluoromethyl)phenyl)hydrazono)methyl)-4H-chromen-4-one (BPH) using theoretical approach. The trend in chemical reactivity and stability of the studied compounds was observed to show increasing stability and decreasing reactivity and this was obtained from orbital energies. The effect of bromine and chlorine atoms, instead of fluorine atoms, is also noted. Surface analysis on the covalent bond was attained by ELF and LOL analysis. Biological activities were predicted using molecular docking studies. Docking results were analyzed with standard drugs, 5-fluorouracil/piperine. Antitumor activity of hydrazine derivatives was found to be higher than reference ones. Molecular dynamics (MD) simulation was performed for 100 ns to validate the stability behavior of hydrazine derivatives with the dual specificity threonine tyrosine kinase (TTK) protein. RMSD, RMSF, Rg, SASA, and intermolecular analysis of DFH, TMH, and BPH with threonine tyrosine kinase forms stable ligand-protein interactions. The molecular and predictive biological properties of three pharmaceutically active hydrazine derivatives which can be helpful to researchers in future experimental validation through in vitro and in vivo studies.
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Affiliation(s)
- Y Sheena Mary
- Researcher, Thushara, Neethinagar-64, Kollam, Kerala, India.
| | - Y Shyma Mary
- Researcher, Thushara, Neethinagar-64, Kollam, Kerala, India
| | - K S Resmi
- Researcher, Thiruvalluvarpuram Main Street Number 5, Chennai, India
| | - S Sarala
- Department of Physics, Kanchi Shri Krishna College of Arts and Science, Kanchipuram, Tamilnadu, 631551, India
| | - Rohitash Yadav
- Department of Pharmacology, All India Institute of Medical Sciences, Rishikesh, 249203, India
| | - Ismail Celik
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Erciyes University, Kayseri, Turkey
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Pooventhiran T, Al-Zaqri N, Alsalme A, Bhattacharyya U, Thomas R. Structural aspects, conformational preference and other physico-chemical properties of Artesunate and the formation of self-assembly with graphene quantum dots: A first principle analysis and surface enhancement of Raman activity investigation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114810] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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13
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Structural, physico-chemical landscapes, ground state and excited state properties in different solvent atmosphere of Avapritinib and its ultrasensitive detection using SERS/GERS on self-assembly formation with graphene quantum dots. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114555] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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14
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Al-Zaqri N, Pooventhiran T, Alsalme A, Rao DJ, Rao SS, Sankar A, Thomas R. First-Principle Studies of Istradefylline with Emphasis on the Stability, Reactivity, Interactions and Wavefunction-Dependent Properties. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1857273] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Nabil Al-Zaqri
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
- Department of Chemistry, College of Science, Ibb University, Ibb, Yemen
| | - T. Pooventhiran
- Department of Chemistry, St. Berchmans College (Autonomous), Changanassery, Kerala, India
| | - Ali Alsalme
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - D. Jagadeeswara Rao
- Department of Physics, Dr Lankapalli Bullayya College, Visakhapatnam, Andhra Pradesh, India
| | | | - A. Sankar
- Department of Chemistry, Kandaswami Kandar's College, Namakkal, Tamil Nadu, India
| | - Renjith Thomas
- Department of Chemistry, St. Berchmans College (Autonomous), Changanassery, Kerala, India
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Al-Zaqri N, Pooventhiran T, Alharthi FA, Bhattacharyya U, Thomas R. Structural investigations, quantum mechanical studies on proton and metal affinity and biological activity predictions of selpercatinib. J Mol Liq 2020; 325:114765. [PMID: 33746318 PMCID: PMC7957184 DOI: 10.1016/j.molliq.2020.114765] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/23/2020] [Accepted: 11/10/2020] [Indexed: 02/07/2023]
Abstract
Cancer of the lungs and thyroid is particularly difficult to manage and treat. Notably, selpercatinib has recently been suggested as an effective drug to combat these diseases. The entire world is currently tackling the pandemic caused by the SARS-CoV-19 virus. Numerous pharmaceuticals have been evaluated for the management of the disease caused by SARS-CoV-19 (i.e., COVID-19). In this study, selpercatinib was proposed as a potential inhibitor of different SARS-CoV-19 proteins. Several intriguing effects of the molecule were found during the conducted computational investigations. Selpercatinib could effectively act as a proton sponge and exhibited high proton affinity in solution. Moreover, it was able to form complexes with metal ions in aqueous solutions. Specifically, the compound displayed high affinity towards zinc ions, which are important for the prevention of virus multiplication inside human cells. However, due to their charge, zinc ions are not able to pass the lipid bilayer and enter the cell. Thus, it was determined that selpercatinib could act as an ionophore, effectively transporting active zinc ions into cells. Furthermore, various quantum mechanical analyses, including energy studies, evaluation of the reactivity parameters, examination of the electron localisation and delocalisation properties, as well as assessment of the nonlinear optical (NLO) properties and information entropy, were conducted herein. The performed docking studies (docking scores -9.3169, -9.1002, -8.1853 and -8.1222 kcal mol-1) demonstrated that selpercatinib strongly bound with four isolated SARS-CoV-2 proteins.
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Affiliation(s)
- Nabil Al-Zaqri
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.,Department of Chemistry, College of Science, Ibb University, P. O. Box 70270, Ibb, Yemen
| | - T Pooventhiran
- Department of Chemistry, St. Berchmans College (Autonomous), Changanassery, Kerala, India
| | - Fahad A Alharthi
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Utsab Bhattacharyya
- Department of Chemistry, St. Berchmans College (Autonomous), Changanassery, Kerala, India
| | - Renjith Thomas
- Department of Chemistry, St. Berchmans College (Autonomous), Changanassery, Kerala, India
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Al-Otaibi JS, Almuqrin AH, Mary YS, Mary YS. Comprehensive quantum mechanical studies on three bioactive anastrozole based triazole analogues and their SERS active graphene complex. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128388] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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17
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DFT and molecular docking studies of self-assembly of sulfone analogues and graphene. J Mol Model 2020; 26:273. [DOI: 10.1007/s00894-020-04546-7] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 09/14/2020] [Indexed: 01/30/2023]
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Cocrystals of hydrochlorothiazide with picolinamide, tetramethylpyrazine and piperazine: quantum mechanical studies, docking and modelling of the photovoltaic efficiency for DSSC. J Mol Model 2020; 26:256. [PMID: 32885337 DOI: 10.1007/s00894-020-04528-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 08/31/2020] [Indexed: 01/06/2023]
Abstract
Cocrystals are of immense applications in crystal engineering and pharmaceutical chemistry. Hydrochlorothiazide is found to form cocrystals with picolinamide (H1), tetramethylpyrazine (H2) and piperazine (H3). It was characterized using IR spectra, and quantum mechanical calculations for geometry and other properties. Frontier orbital energies are used to predict the energy properties and model the possible charge transfer between the constituents of the cocrystal. The frontier molecular orbital analysis indicates chemical reactivity and bioactivity of the cocrystals. The MEP surface reveals the various reactive surfaces in the cocrystal system, which is very important in deciding various biological activities. The UV-Vis spectra show the possible electronic transitions of the molecules. Simulated electronic spectra using TDDFT method with CAM-B3LYP functional were used to investigate the suitability of the cocrystals to be used in DSSC. Moreover, the molecular docking analysis proves that the cocrystals can act as potential inhibitors and paves the way for developing effective drugs.
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Almuqrin AH, Al-Otaibi JS, Mary YS, Thomas R, Kaya S, Işın DÖ. Spectral analysis and detailed quantum mechanical investigation of some acetanilide analogues and their self-assemblies with graphene and fullerene. J Mol Model 2020; 26:254. [PMID: 32876867 DOI: 10.1007/s00894-020-04485-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 07/21/2020] [Indexed: 01/21/2023]
Abstract
Spectroscopic analysis and different quantum mechanical studies of four pharmaceutically active compounds phenacetin, p-acetanisidide, 4'-butoxyacetanilide, and 4'-(3-chloropropoxy)acetanilide are reported in this manuscript. Simulated IR spectrum of these compounds was compared with experimentally available data, and essential functional group assignments were made. We also report the frontier orbital properties and other derived local energy descriptors which talks about the relative stability and reactivity. Photovoltaic efficiency of the compounds was studied from the simulated electronic spectra. The compound was found to interact with graphene and fullerene, to form molecular self-assembly. These self-assemblies showed tremendous enhancement in various physicochemical properties when compared with its constituents. The nature of the interactions between studied chemical species was discussed with the help of chemical reactivity principles. Biological activity of the compounds was predicted using molecular docking studies. It is interesting to see that on adsorption with a graphene/fullerene surface, all adsorbed complex shows enhancement in the Raman activity giving surface enhanced Raman spectra (SERS). This can be used for the detection of these drugs in a pharmacological or biological sample. Interestingly the graphene/fullerene drug molecular assembly shows enhanced biological activity when compared with individual drug molecules. Graphical abstract.
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Affiliation(s)
- Aljawhara H Almuqrin
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Jamelah S Al-Otaibi
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Y Sheena Mary
- Department of Physics, Fatima Mata National College (Autonomous), Kollam, Kerala, India.
| | - Renjith Thomas
- Department of Chemistry, St. Berchmans College (Autonomous), Changanacherry, Kerala, India
| | - Savaş Kaya
- Department of Pharmacy, Sivas Cumhuriyet University, Health Services Vocational School, 58140, Sivas, Turkey
| | - Dilara Özbakır Işın
- Department of Chemistry, Sivas Cumhuriyet University Faculty of Science, Sivas, Turkey
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DFT and MD simulations and molecular docking of co-crystals of octafluoro-1,4-diiodobutane with phenazine and acridine. Struct Chem 2020. [DOI: 10.1007/s11224-020-01616-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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