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Anitha K, Nataraj A, Narayana B. DFT Investigation, Chemical Reactivity Identification and Molecular Docking of 2( E)˗1˗(3˗Bromothiophene˗2˗yl)˗3˗(Furan˗2˗yl)Prop˗2˗en˗1˗one. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2138920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- K. Anitha
- Department of Physics, SRM Institute of Science and Technology, Chennai, Tamilnadu, India
| | - A. Nataraj
- Department of Physics, SRM Institute of Science and Technology, Chennai, Tamilnadu, India
| | - Badiadka Narayana
- Department of Studies in Chemistry, Mangalore University, Mangalagangotri, Mangalore, Karnataka, India
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Masoud MS, Hemdan SS, Elsamra RMI. Synthesis, Ligating Properties, Thermal Behavior, Computational and Biological Studies of Some Azo-transition Metal Complexes. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02483-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
AbstractSynthesis of new Fe(III), Co(II), Ni(II), and Cu(II) complexes of two azo ligands; 1-(phenyldiazenyl) naphthalene-2-ol (sudan orange R, HL1), and sodium 2-hydroxy-5-[(E)-(4-nitrophenyl) diazenyl]benzoate (alizarin yellow GG, HL2) have been reported. Stoichiometries of 1:2 and 1:3 (M:L) of the synthesized complexes were approved by total-reflection X-ray fluorescence technique (TXRF) and by elemental analyses. The geometry of complexes (octahedral and square planar) was typified by various spectroscopic, thermal, and magnetic techniques. The ESR spectroscopy showed that Cu(II) complexes are of different isotropic and rhombic symmetries with the existence of Cu–Cu ions interaction. TGA, DTA, and DSC analyses supported the multi-stage thermal decomposition mechanisms, where the thermal breakdown is ended by the formation of metal oxide in most cases. Moreover, chemical reactivity modeling using the density functional theory (DFT) method with the B3LYP/6–31 basis set, showed that metal complexes are more biologically active than their precursor ligands. The calculated lipophilicity character for metal complexes is in the range of 33.8–37.5 eV. Docking results revealed high scoring energy for [Fe(HL2)3].H2O complex and moderate inhibition strength of [Cu(L1)2].H2O complex versus 1bqb, 3t88, and 4esw proteins. Ultimately, the extent of biological effectiveness was endorsed experimentally against four microbial strains. The results are guidelines for toxicological investigations.
Graphical Abstract
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Jeelani A, Muthu S, Ramesh P, Irfan A. Experimental spectroscopic, molecular structure, electronic solvation, biological prediction and topological analysis of 2, 4, 6-tri (propan-2-yl) benzenesulfonyl chloride: An antidepressant agent. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Anbukarasi K, Xavier S, Jamalis J, Sebastian S, Paularokiadoss F, Periandy S, Rajkumar R. Synthesis, reaction pathways, homa, TG/DSC, spectroscopic and quantum computational analysis of (2E)-3-[3-(benzyloxy)phenyl]-l-phenyl-2-propen-l-one. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Ekka J, Upadhyay SN, Keil FJ, Pakhira S. Unveiling the role of 2D monolayer Mn-doped MoS 2 material: toward an efficient electrocatalyst for H 2 evolution reaction. Phys Chem Chem Phys 2021; 24:265-280. [PMID: 34881758 DOI: 10.1039/d1cp04344g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Two-dimensional (2D) monolayer pristine MoS2 transition metal dichalcogenide (TMD) is the most studied material because of its potential applications as nonprecious electrocatalyst for the hydrogen evolution reaction (HER). Previous studies have shown that the basal planes of 2D MoS2 are catalytically inert, and hence it cannot be used directly in desired applications such as electrochemical HER in industry. Here, we thoroughly studied a defect-engineered Mn-doped 2D monolayer MoS2 (Mn-MoS2) material, where Mn was doped in pristine MoS2 to activate its inert basal planes. Using the density functional theory (DFT) method, we performed rigorous inspection of the electronic structures and properties of the 2D monolayer Mn-MoS2 as a promising alternative to noble metal-free catalyst for effective HER. A periodic 2D slab of monolayer Mn-MoS2 was created to study the electronic properties (such as band gap, band structures and total density of states (DOS)) and the reaction pathways occurring on the surface of this material. The detailed HER mechanism was explored by creating an Mn1Mo9S21 non-periodic finite molecular cluster model system using the M06-L DFT method including solvation effects to determine the reaction barriers and kinetics. Our study revealed that the 2D Mn-MoS2 follows the most favorable Volmer-Heyrovsky reaction mechanism with a very low energy barrier during H2 evolution. It was found that the change in the free energy barrier (ΔG) during the H˙-migration (i.e., Volmer) and Heyrovsky reactions is about 10.34-10.79 kcal mol-1 (computed in the solvent phase), indicating that this material is an exceptional electrocatalyst for the HER. The Tafel slope (y) was lower in the case of the 2D monolayer Mn-MoS2 material due to the overlap of the s-orbital of hydrogen and d-orbitals of the Mn atoms in the HOMO and LUMO transition states (TS1 and TS2) of both the Volmer and Heyrovsky reaction steps, respectively. The better stabilization of the atomic orbitals in the HER rate-limiting step Heyrovsky TS2 is the key for reducing the reaction barrier, and thus the overall catalysis, indicating a better electrocatalytic performance for H2 evolution. This study focused on designing low-cost and efficient electrocatalysts for the HER using earth abundant transition metal dichalcogenides (TMDs) and decreasing the activation energy barriers by scrutinizing the kinetics of the reaction to achieve high reactivity.
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Affiliation(s)
- Joy Ekka
- Department of Physics, Indian Institute of Technology Indore (IIT Indore), Simrol, Khandwa Road, Indore 453552, MP, India.
| | - Shrish Nath Upadhyay
- Department of Metallurgy Engineering and Materials Science (MEMS), Indian Institute of Technology Indore (IIT Indore), Khandwa Road, Simrol, Indore 453552, MP, India
| | - Frerich J Keil
- Department of Chemical Reaction Engineering, Hamburg University of Technology, 21073 Hamburg, Germany
| | - Srimanta Pakhira
- Department of Physics, Indian Institute of Technology Indore (IIT Indore), Simrol, Khandwa Road, Indore 453552, MP, India. .,Department of Metallurgy Engineering and Materials Science (MEMS), Indian Institute of Technology Indore (IIT Indore), Khandwa Road, Simrol, Indore 453552, MP, India.,Centre for Advanced Electronics (CAE), Indian Institute of Technology Indore (IIT Indore), Khandwa Road, Simrol, Indore 453552, MP, India
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Hiremath SM. Vibrational, electronic and reactivity insight on (5-chloro-benzofuran-3-yl)-acetic acid hydrazide: A Spectroscopic and DFT approach. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130479] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Sudha S, Ramesh P, Kumari CRT, Jayaprakash P, Kumar M, Vinitha G, Caroline ML. Growth, spectroscopic, HOMO-LUMO energies, MEP, hardness and TG/DTA studies of acid potassium hydrogen fumarate as an efficient nonlinear optical material. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127946] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Thamarai A, Vadamalar R, Raja M, Muthu S, Narayana B, Ramesh P, Muhamed RR, Sevvanthi S, Aayisha S. Molecular structure interpretation, spectroscopic (FT-IR, FT-Raman), electronic solvation (UV-Vis, HOMO-LUMO and NLO) properties and biological evaluation of (2E)-3-(biphenyl-4-yl)-1-(4-bromophenyl)prop-2-en-1-one: Experimental and computational modeling approach. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 226:117609. [PMID: 31622823 DOI: 10.1016/j.saa.2019.117609] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 07/18/2019] [Accepted: 10/06/2019] [Indexed: 06/10/2023]
Abstract
In this present work, a molecule (2E)-3-(biphenyl-4-yl)-1-(4-bromophenyl) prop-2-en-1-one (3BPO) was synthesized and the structure has been characterized by using spectroscopic techniques. The most stable conformational structure of title compound has been calculated using HF-6-31G(d,p) basis set. DFT method were used through B3LYP/6-311++G(d,p) basis set to optimize the structure of the title compound. The geometrical parameters, vibrational wavenumbers and electronic properties have also been performed. The electronic properties for HOMO-LUMO, UV-Vis and MEP maps were contemplated by IEFPCM model with various solvation impacts which depends on TD-DFT ((M062X for UV and B3LYP for HOMO-LUMO, MEP)/6-311++G(d,p)) strategies. The NLO activity of title compound has been examined by solvation DFT/B3LYP technique with 6-311++G(d,p) premise set. Mean while, lone pair of donor-acceptor interactions and H bond donor/acceptor surface has been obtained by which a charge transfer mechanism can be explained. Molecular docking has been explored to comprehend the coupling transportation of the examined ligand with human folate receptor alpha in complex with folic corrosive protein (4LRH).
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Affiliation(s)
- A Thamarai
- Department of Physics, Muthurangam Govt. Arts College, Vellore, 632002, Tamilnadu, India; Department of Physics, Govt. Thirumagal Mills College, Gudiyattam, 632602, Vellore, Tamilnadu, India
| | - R Vadamalar
- Department of Physics, Muthurangam Govt. Arts College, Vellore, 632002, Tamilnadu, India
| | - M Raja
- Department of Physics, Govt. Thirumagal Mills College, Gudiyattam, 632602, Vellore, Tamilnadu, India
| | - S Muthu
- Department of Physics, Arignar Anna Govt. Arts College, Cheyyar, 604 407, Tamilnadu, India.
| | - B Narayana
- Department of Chemistry, Mangalore University, Mangalagangotri, 574 199, Karnataka, India
| | - P Ramesh
- Department of Physics, Govt. Thirumagal Mills College, Gudiyattam, 632602, Vellore, Tamilnadu, India
| | - R Raj Muhamed
- Department of Physics, Jamal Mohamed College, Tiruchirappalli, 620 020, Tamilnadu, India
| | - S Sevvanthi
- Department of Physics, Arignar Anna Govt. Arts College, Cheyyar, 604 407, Tamilnadu, India
| | - S Aayisha
- Research and Development Centre, Bharathiar University, Coimbatore, 641046, Tamilnadu, India; Department of Physics, Meenakshi College for Women, Chennai, 600024, Tamilnadu, India
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Thamarai A, Vadamalar R, Raja M, Muthu S, Narayana B, Ramesh P, Sevvanthi S, Aayisha S. Molecular structure conformational analyses, solvent-electronic studies through theoretical studies and biological profiling of (2E)-1-(3-bromo-2-thienyl)-3-(4-chlorophenyl)-prop-2-en-1-one. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127349] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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A combined experimental and DFT computations study of novel (E)-3-(benzofuran-2-yl)-2-(thiophen-2-yl)acrylonitrile(TACNBNF): Insight into the synthesis, single crystal XRD, NMR, vibrational spectral analysis, in vitro antioxidant and in silico molecular docking investigation with human peroxiredoxin 5 protein. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127241] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Kuruvilla TK, Prasana JC, Muthu S, George J. Vibrational spectroscopic (FT-IR, FT-Raman) and quantum mechanical study of 4-(2-chlorophenyl)-2-ethyl-9-methyl-6H-thieno[3,2-f] [1,2,4]triazolo[4,3-a][1,4] diazepine. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.01.001] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Raja M, Raj Muhamed R, Muthu S, Suresh M, Muthu K. Synthesis, spectroscopic (FT-IR, FT-Raman, NMR, UV–Visible), Fukui function, antimicrobial and molecular docking study of (E)-1-(3-bromobenzylidene)semicarbazide by DFT method. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.10.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Raja M, Muhamed RR, Muthu S, Suresh M. Synthesis, spectroscopic (FT-IR, FT-Raman, NMR, UV–Visible), first order hyperpolarizability, NBO and molecular docking study of (E)-1-(4-bromobenzylidene)semicarbazide. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.09.017] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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