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Siddiqa A, Tajammal A, Irfan A, Munawar MA, Azam M, Basra MAR. Synthesis, antioxidant, in silico and computational investigation of 2,5-dihydroxyacetophenone derived chloro-substituted hydroxychalcones, hydroxyflavanones and hydroxyflavindogenides. J Biomol Struct Dyn 2022; 40:10265-10277. [PMID: 34176443 DOI: 10.1080/07391102.2021.1943527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An imbalance between reactive oxygen species (ROS) and their elimination by antioxidants damages the cell and infect whole organism. The biological defence system against oxidative stress injury is Kelch-like ECH associated protein 1 (Keap1)-nuclear factor erythroid 2-related factor 2 (Nrf2)-antioxidant response elements (ARE) pathways. Antioxidants activate the Nrf2-ARE-Keap1 pathway and suppress the oxidative stress. Flavonoids are well known medicinal compounds inheriting antioxidant efficacy and wide spectrum of pharmacological activities. The study is aimed to synthesise, characterize and evaluate pharmacological activities of synthesized chloro-derivatives of flavonoids. Chloro-derivatives of flavonoids were synthesized and characterized by IR, 1H NMR and 13C NMR. Antioxidant potential of each synthesized compound was evaluated and then subjected to molecular docking with Keap1 (PDB ID: 2FLU) for the activation of Nrf2 and computational studies were performed by using DFT approach. Among the synthesized compounds compound 1a exhibited lower IC50 value. While docking and computational studies infer that compound 3c is a good Nrf2 activator and radical scavenger with highest docking score and lower energy gaps and IP values compared to references. Hence, it might be considered for further molecular studies for the treatment of inflammatory diseases through Nrf2-ARE-Keap1 pathway. Communicated by Ramaswamy H. Sarma.HighlightsChloro-substituted hydroxychalcones, hydroxyflavanones and hydroxyflavindogenides were synthesized.Antioxidant potential was accessed, compound 1a exhibited good antioxidant potential.In silico study was performed with Keap1, compound 3c have shown highest docking score with Keap1.DFT approach was used to explore the structure activity relationship.
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Affiliation(s)
- Aysha Siddiqa
- School of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | - Affifa Tajammal
- School of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan.,Department of Chemistry, Lahore Garrison University, Lahore, Pakistan
| | - Ahmad Irfan
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia.,Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia
| | | | - Muhammad Azam
- School of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
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Siddiqa A, Tajammal A, Irfan A, Azam M, Munawar MA, Hardy R, Basra MAR. Synthesis, molecular docking, bio-evaluation and quantitative structure activity relationship of new chalcone derivatives as antioxidants. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Chaudhry AR, Alhujaily M, Muhammad S, Elbadri GA, Belali TM, Al-Sehemi AG. Insighting the optoelectronic, charge transfer and biological potential of benzo-thiadiazole and its derivatives. Z NATURFORSCH C 2022; 77:403-415. [PMID: 35438853 DOI: 10.1515/znc-2021-0306] [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: 11/30/2021] [Accepted: 03/17/2022] [Indexed: 11/15/2022]
Abstract
The current investigation applies the dual approach containing quantum chemical and molecular docking techniques to explore the potential of benzothiadiazole (BTz) and its derivatives as efficient electronic and bioactive materials. The charge transport, electronic and optical properties of BTz derivatives are explored by quantum chemical techniques. The density functional theory (DFT) and time dependent DFT (TD-DFT) at B3LYP/6-31G** level of theory utilized to optimize BTz and newly designed ligands at the ground and first excited states, respectively. The heteroatoms substitution effects on different properties of 4,7-bis(4-methylthiophene-2yl) benzo[c] [1,2,5]thiadiazole (BTz2T) as initial compound are studied at molecular level. Additionally, we also study the possible inhibition potential of COVID-19 from benzothiadiazole (BTz) containing derivatives by implementing the grid based molecular docking methods. All the newly designed ligands docked with the main protease (MPRO:PDB ID 6LU7) protein of COVID-19 through molecular docking methods. The studied compounds showed strong binding affinities with the binding site of MPRO ranging from -6.9 to -7.4 kcal/mol. Furthermore, the pharmacokinetic properties of the ligands are also studied. The analysis of these results indicates that the studied ligands might be promising drug candidates as well as suitable for photovoltaic applications.
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Affiliation(s)
- Aijaz Rasool Chaudhry
- Department of Physics, College of Science, University of Bisha, Bisha 61922, P.O. Box 334, Saudi Arabia.,Deanship of Scientific Research, University of Bisha, Bisha 61922, P.O. Box 551, Saudi Arabia
| | - Muhanad Alhujaily
- Faculty of Applied Medical Sciences, University of Bisha, 255, Al Nakhil, Bisha 67714, Saudi Arabia
| | - Shabbir Muhammad
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, P.O. Box 9004, Saudi Arabia
| | - Gamal A Elbadri
- Department of Biology, College of Science, University of Bisha, Bisha 61922, P.O. Box 334, Saudi Arabia
| | - Tareg M Belali
- Faculty of Applied Medical Sciences, University of Bisha, 255, Al Nakhil, Bisha 67714, Saudi Arabia
| | - Abdullah G Al-Sehemi
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, P.O. Box 9004, Saudi Arabia
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Tajammal A, Siddiqa A, Irfan A, Azam M, Hafeez H, Munawar MA, Basra MAR. Antioxidant, molecular docking and computational investigation of new flavonoids. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132189] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Irfan A, Imran M, Thomas R, Basra MAR, Ullah S, Al-Sehemi AG, Assiri MA. Exploring the effect of oligothiophene and acene cores on the optoelectronic properties and enhancing p- and n-type ability of semiconductor materials. J Sulphur Chem 2020. [DOI: 10.1080/17415993.2020.1830401] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Ahmad Irfan
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | - Muhammad Imran
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | - Renjith Thomas
- Department of Chemistry, St Berchmans College (Autonomous), Kerala, India
| | | | - Sami Ullah
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | - Abdullah G. Al-Sehemi
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | - Mohammed A. Assiri
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
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He W, Liu R, Liao Y, Ding G, Li J, Liu W, Wu L, Feng H, Shi Z, He M. A new 1,2,3-triazole and its rhodamine B derivatives as a fluorescence probe for mercury ions. Anal Biochem 2020; 598:113690. [PMID: 32259511 DOI: 10.1016/j.ab.2020.113690] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 01/02/2020] [Accepted: 03/12/2020] [Indexed: 02/08/2023]
Abstract
A newly synthesized compound, 5-methyl-1-phenyl-1H-1,2,3-triazole-4- carboxylic acid (MPC) was analyzed for its quantum chemical parameters and theoretical spectrum by computational chemistry. The calculated spectrum was in accord with the experimental measurements in a great degree. Then MPC was successfully designed and synthesized to a novel rhodamine B derivative RMPC. The RMPC exhibited about a 4000-fold increase in fluorescence intensity in the presence of Hg2+ ions over most other competitive metal ions. The triazole appended colorless chemodosimeter RMPC turns to pink upon the complex formation only with Hg2+ ions as a 1: 2 M ratio and enables naked-eye detection. The coordination mechanism of turning on/off fluorescence for Hg2+ ions were well proposed by explaining Hg2+ inducing the ring-opened rhodamine B moiety. The fluorescence imaging experiments of Hg2+ in HeLa cell demonstrated that the probe was labeled and it could be used in biological systems.
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Affiliation(s)
- Wenying He
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Haikou, 571158, China.
| | - Rongqiang Liu
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Haikou, 571158, China
| | - Yuanhao Liao
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Haikou, 571158, China
| | - Guohua Ding
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Haikou, 571158, China
| | - Jianling Li
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Haikou, 571158, China
| | - Wei Liu
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Haikou, 571158, China
| | - Luyong Wu
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Haikou, 571158, China
| | - Huajie Feng
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, China
| | - Zaifeng Shi
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Haikou, 571158, China
| | - Mengxiong He
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, China
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Li J, Feng H, Liu R, Ding G, Si H, He W, Sun Z. The computational and experimental studies on a 1, 2, 3-triazole compound and its special binding to three kinds of blood proteins. J Biomol Struct Dyn 2019; 38:1185-1196. [PMID: 30909827 DOI: 10.1080/07391102.2019.1598498] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A newly synthesized compound, ethyl 5-phenyl-2-(p-tolyl)-2H-1, 2, 3-triazole-4-carboxylate (EPPC) may be considered as a drug candidate and was exploited to study the structural and spectral properties by using quantum chemical calculation and multiple spectroscopic techniques. The results on theoretical spectrum of EPPC were consistent with experimental spectrum in great degree. In addition, EPPC has been as a special probe and investigated on the interactions with three kinds of blood proteins including human serum albumin (HSA), human immunoglobulin (HIgG) and bovine hemoglobin (BHb) by using UV-Vis, fluorescence spectroscopy and molecular modeling, respectively. Changes in various fluorescence and UV-Vis spectra were observed upon ligand binding along with a remarkable degree of fluorescence enhancement on complex formation under physiological condition with binding constant about 105 order of magnitudes, which caused the variations of conformation and microenvironment of these proteins in aqueous solution. The obtained results from the thermodynamic parameters calculated according to the van't Hoff equation indicated that the entropy change ΔS° and enthalpy change ΔH° were found to be 0.168 KJ/mol K and 22.154 KJ/mol for EPPC-HSA system, 0.284 KJ/mol K and 54.408 KJ/mol for EPPC-HIgG system, and 0.228 KJ/mol K and 37.548 KJ/mol for EPPC-BHb system, respectively, which demonstrated that the primary binding pattern is determined by hydrophobic interaction. The results of docking and molecular dynamics simulation using three proteins crystal models revealed that EPPC could bind to three proteins well into hydrophobic cavity, which showed good consistence with the spectroscopic measurements.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Jianling Li
- College of Chemical and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Huajie Feng
- College of Chemical and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Rongqiang Liu
- College of Chemical and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Guohua Ding
- College of Chemical and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Hongzong Si
- Institute for Computational Science and Engineering, Qingdao University, Qingdao, China
| | - Wenying He
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou, China
| | - Zhenfan Sun
- College of Chemical and Chemical Engineering, Hainan Normal University, Haikou, China
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Chaudhry AR, Ul Haq B, Muhammad S, Laref A, Irfan A, Algarni H. Structural, electronic and optical properties of furan based materials at bulk level for photovoltaic applications: A first-principles study. COMPUT THEOR CHEM 2019. [DOI: 10.1016/j.comptc.2018.12.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Li J, Ding G, Niu Y, Wu L, Feng H, He W. The structural properties of 5-methyl-2-phenyl-2H-1,2,3-triazole-4- carboxylic acid and chromogenic mechanism on its rhodamine B derivatives to Hg 2+ ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 200:127-135. [PMID: 29677499 DOI: 10.1016/j.saa.2018.04.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 04/03/2018] [Accepted: 04/05/2018] [Indexed: 06/08/2023]
Abstract
5-Methyl-2-phenyl-2H-1,2,3-triazole-4-carboxylic acid (MPTC), a newly synthesized compound, was explored to study the structural properties and theoretical spectra by using GaussView5.0 program package and the time dependent density functional theory (TD DFT). The calculated quantum chemical values suggested that it is easy for MPTC to lose electron with weak electron accepting ability. And the results of experimental measurements on fluorescence and absorption spectra were consistent with that of the calculated spectra in great degree. In addition, MPTC was successfully used and synthesized a novel rhodamine B derivative RMPTC containing 1,2,3-triazole unit. It is found that there is special chromogenic response of RMPTC to Hg2+ ions in N, N-dimethylformamide (DMF)-H2O (v/v=1/1, Tris-HCl, pH7.4) with the triazole appended colorless chemosensor turned to pink and enabled naked-eye detection. The fluorescence signal for RMPTC-Hg2+ system was not affected by other coexisting metal ions. The 1:2 stoichiometric structure of RMPTC and Hg2+ is confirmed using a Job's plot estimation and TD DFT calculations. The corresponding "off-on" fluorescence mechanism of RMPTC binding to Hg2+ which were ascribed to Hg2+ inducing the ring-opened rhodamine B moiety were proposed. This study was an advancement for the application of 1,2,3-triazole compound in photophysical chemistry field and provides guidance for exploring simple and high-selectivity Hg2+ probes in aqueous solutions under physiological conditions.
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Affiliation(s)
- Jianling Li
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Guohua Ding
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Yanyan Niu
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
| | - Luyong Wu
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Haikou 571158, China
| | - Huajie Feng
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China.
| | - Wenying He
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Haikou 571158, China.
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Antiplatelet activity, molecular docking and QSAR study of novel N′-arylmethylidene-3-methyl-1-phenyl-6-p-chlorophenyl-1H-pyrazolo[3,4-b] pyridine-4-carbohydrazides. Med Chem Res 2017. [DOI: 10.1007/s00044-017-2053-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Irfan A, Chaudhry AR, Muhammad S, Al-Sehemi AG. Exploring the potential of boron-doped nanographene as efficient charge transport and nonlinear optical material: A first-principles study. J Mol Graph Model 2017; 75:209-219. [DOI: 10.1016/j.jmgm.2017.05.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Revised: 05/22/2017] [Accepted: 05/23/2017] [Indexed: 11/27/2022]
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Irfan A, Al-Sehemi AG, Muhammad S, Chaudhry AR, Al-Assiri MS, Jin R, Kalam A, Shkir M, Asiri AM. In-depth quantum chemical investigation of electro-optical and charge-transport properties of trans-3-(3,4-dimethoxyphenyl)-2-(4-nitrophenyl)prop-2-enenitrile. CR CHIM 2015. [DOI: 10.1016/j.crci.2015.05.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Chaudhry AR, Ahmed R, Irfan A, Shaari A, Isa ARM, Muhammad S, Al-Sehemi AG. Effect of donor strength of extended alkyl auxiliary groups on optoelectronic and charge transport properties of novel naphtha[2,1-b:6,5-b']difuran derivatives: simple yet effective strategy. J Mol Model 2015; 21:199. [PMID: 26177706 DOI: 10.1007/s00894-015-2743-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 06/25/2015] [Indexed: 01/22/2023]
Abstract
The present study spotlights the designing of new derivatives of 2,7-bis (4-octylphenyl) naphtho [2,1-b:6,5-b'] difuran (C8-DPNDF) by substituting the alkyl groups (methyl, ethyl, propyl, butyl, pentyl, hexyl, and heptyl groups) at para position. Density functional theory (DFT) and time-dependent density functional theory (TD-DFT) methods are employed to optimize the molecular structures in ground and first excited states, respectively. Several electro-optical properties including hole/electron reorganization energies (λh/λe), electron affinities (EAs), ionization potentials (IPs), molecular electrostatic potentials (MEP), and frontier molecular orbitals (FMOs) have been evaluated. Furthermore their transfer integrals and intrinsic mobilities values have also been calculated. From this study, it is found that hole mobility of octyl containing derivative is raised to 4.69 cm(2) V(-1) s(-1). Moreover with attaching octyl group, hole transfer integral values have also been enhanced in newly designed derivatives. The balanced hole and electron reorganization energies, and improved transfer integrals lead to enhanced mobility in derivatives with octyl group, highlighting them as an efficient hole transfer material. Unlike the other electro-optical properties, the intrinsic hole mobility has increased because of transfer integral values of octyl containing derivative C8-DPNDF due to the dense and close crystal packing of C8-DPNDF. However, photostability of furan-based materials has not changed by increasing length of extended alkyl chain. Thus our present investigation highlights the importance of alkyl auxiliary groups that are often neglected/replaced with simple methyl group to save computation costs. Graphical Abstract The hole and electron reorganization energies of naphtho[2,1-b:6,5-b']difuran derivatives.
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Affiliation(s)
- Aijaz Rasool Chaudhry
- Department of Physics, Faculty of Science, Universiti Teknologi Malaysia, UTM Skudai, 81310, Johor, Malaysia,
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Muhammad S, Irfan A, Al-Sehemi AG, Al-Assiri MS, Kalam A, Chaudhry AR. Quantum chemical investigation of spectroscopic studies and hydrogen bonding interactions between water and methoxybenzeylidene-based humidity sensor. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2015. [DOI: 10.1142/s0219633615500297] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A quantum chemical investigation has been performed to spotlight the structure–property relationship among methoxybenzeylidene-based humidity sensor and water molecules. The chemical interactions among (E)-2-(4-(2-(3,4-dimethoxybenzeylidene)hydrazinyl)phenyl) ethane-1,1,2-tricarbonitrile (DMBHPET) sensor and water molecules have been studied using density functional theory (DFT) methods. The molecular structural parameters, binding energies and Infrared (IR) spectroscopic analyses have been performed to assess the nature of intermolecular interactions. Three different positions have been identified for possible attachments of H 2 O molecules through hydrogen bonding interactions. These positions include NH (complex 1a), p- OCH 3 (complex 1b) and N=N (complex 1c) group in sensor molecule (1) for the chemical adsorption of water molecules. While, the complex 1abc includes all three sites with simultaneously three H 2 O molecules attached to it through hydrogen bonding. The binding energies calculated for complex 1a( NH … H 2 O ), complex 1b( CH 3 O … H 2 O ), complex 1c( N=N … H 2 O ) and complex 1abc are -30.97, -18.41, -13.80 and -65.36 kcal/mol, respectively. The counterpoise (CP) scheme has been used to correct the basis set superposition error (BSSE) in calculation of binding energies of sensor and H 2 O complexes. The higher binding energy of -65.36 kcal/mol for complex 1abc represents that the present methoxybenzeylidene-based sensor has significant potential through hydrogen bonding formation for sensing humidity as indicated in our previous experimental investigation. The evidence of hydrogen bonding interactions between sensor 1 and H 2 O molecules has been traced through structural parameters, red shift in IR spectra as well as molecular electrostatic maps. Thus the present investigation highlights the first computational framework for a molecular level structure-binding activity of a methoxybenzeylidene-based sensor and water molecules.
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Affiliation(s)
- Shabbir Muhammad
- Department of Physics, College of Science, King Khalid University, Abha 61413, P. O. Box 9004, Saudi Arabia
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, P. O. Box 9004, Saudi Arabia
| | - Ahmad Irfan
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, P. O. Box 9004, Saudi Arabia
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, P. O. Box 9004, Saudi Arabia
| | - Abdullah G. Al-Sehemi
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, P. O. Box 9004, Saudi Arabia
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, P. O. Box 9004, Saudi Arabia
| | - M. S. Al-Assiri
- Department of Physics, Faculty of Sciences and Arts, Najran University, P. O. Box 1988, Najran 11001, Saudi Arabia
- Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, P. O. Box 1988, Najran 11001, Saudi Arabia
| | - Abul Kalam
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, P. O. Box 9004, Saudi Arabia
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, P. O. Box 9004, Saudi Arabia
| | - Aijaz R. Chaudhry
- Department of Physics, College of Science, King Khalid University, Abha 61413, P. O. Box 9004, Saudi Arabia
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, P. O. Box 9004, Saudi Arabia
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How does the increment of hetero-cyclic conjugated moieties affect electro-optical and charge transport properties of novel naphtha-difuran derivatives? A computational approach. J Mol Model 2014; 20:2547. [PMID: 25503703 DOI: 10.1007/s00894-014-2547-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2014] [Accepted: 11/24/2014] [Indexed: 10/24/2022]
Abstract
We have investigated computationally the effects of π-conjugation extension on naphtha[2,1-b:6,5-b'] difuran (DPNDF); where we increase the number of fused NDF (central core) and furan rings in the parent molecule. The molecular structures of all analogues have been optimized at the ground (S0) and first excited (S1) states using density functional theory (DFT) and time-dependent density functional theory (TD-DFT), respectively. Then highest occupied molecular orbitals (HOMOs), the lowest unoccupied molecular orbitals (LUMOs), photophysical properties, adiabatic/vertical electron affinities (EAa)/(EAv), adiabatic/vertical ionization potentials (IPa)/(IPv), and hole/electron reorganization energies λh/λe have been investigated. The effect of NDF and furan rings on structural and electro-optical properties has also been studied. Our calculated reorganization energies of 1a, 1b, and 2c reveal them, materials with balanced hole/electron charge transport, whereas 2a and 2b are good hole-transport materials. By increasing the number of furan rings; the photostability was augmented in 2a, 2b, and 2c.
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