26
|
Kodlady SN, Narayana B, Sarojini BK, Karanth SN, Gauthama BU. A highly selective chemosensor derived from benzamide hydrazones for the detection of cyanide ion in organic and organic-aqueous media: design, synthesis, sensing and computational studies. Supramol Chem 2020. [DOI: 10.1080/10610278.2020.1770248] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
27
|
Al-Otaibi JS, Mary YS, Thomas R, Narayana B. Theoretical Studies into the Spectral Characteristics, Biological Activity, and Photovoltaic Cell Efficiency of Four New Polycyclic Aromatic Chalcones. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1747097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
28
|
Viji A, Balachandran V, Babiyana S, Narayana B, Saliyan VV. Molecular docking and quantum chemical calculations of 4-methoxy-{2-[3-(4-chlorophenyl)-5-(4-(propane-2-yl) PHENYL)-4, 5-dihydro-1H-pyrazol-1-yl]- 1, 3-thiazol-4-yl}phenol. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127452] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
29
|
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: 30] [Impact Index Per Article: 7.5] [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).
Collapse
|
30
|
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]
|
31
|
Sheena Mary Y, Shyma Mary Y, Thomas R, Resmi KS, Narayana B, Samshuddin S, Sarojini BK. Spectroscopic and Theoretical Studies of Potential Anti-Inflammatory Polycyclic Aromatic Fluorophenyl Substituted Acyclic and Heterocyclic Analogues Synthesized from 4,4′-Difluorophenylchalcone. Polycycl Aromat Compd 2019. [DOI: 10.1080/10406638.2019.1699836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
32
|
Ramesh P, Caroline ML, Muthu S, Narayana B, Raja M, Geoffrey ASB. Spectroscopic, chemical reactivity, molecular docking investigation and QSAR analyses of (2E)‑1‑(3‑bromo‑2‑thienyl)‑3‑(2,5‑dimethoxyphenyl)prop‑2‑en‑1‑one. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 222:117190. [PMID: 31177006 DOI: 10.1016/j.saa.2019.117190] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 05/23/2019] [Accepted: 05/26/2019] [Indexed: 06/09/2023]
Abstract
Chalcone derivative of (2E)‑1‑(3‑bromo‑2‑thienyl)‑3‑(2,5‑dimethoxyphenyl) prop‑2‑en‑1‑one (BTD) molecule has been deliberated for spectroscopic properties experimentally and theoretically. The title compound was characterized by FT-IR, FT-Raman and UV-Vis analyses. The structural activity and vibrational wavenumbers were calculated by a DFT method. The Natural Bond Orbital (NBO) analysis which reveals the hyper conjugative interactions of the present molecule has been performed. Meanwhile, the Chemical reactivity of Condensed Fukui function, MEP and HOMO-LUMO energies of the molecule were also analyzed. Furthermore, Multiwfn 3.3.9 program has been utilized to study MEP and the electron excitation analysis. Docking studies which play a significant role in determining the endothelial nitric oxide synthase inhibition activity of the present compound have also been carried out to predict the binding energy and inhibition constant of the title compound. In addition, drug resemblance parameters have also considered by QSAR study in which the comparison of chemical parameters of chalcone drugs of title molecule has been done.
Collapse
|
33
|
Likhitha U, Narayana B, Sarojini B, Lobo AG, Sharma G, Pathania S, Kant R. Do hydrogen bonding and noncovalent interactions stabilize nicotinamide-picric acid cocrystal supramolecular assembly? J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.06.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
34
|
Harisha KS, Parushuram N, Asha S, Suma SB, Narayana B, Sangappa Y. Eco-synthesis of gold nanoparticles by Sericin derived from Bombyx mori silk and catalytic study on degradation of methylene blue. PARTICULATE SCIENCE AND TECHNOLOGY 2019. [DOI: 10.1080/02726351.2019.1666951] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
35
|
Jayashree A, Narayana B, Uppine GB, Ghate VM, Lewis SA, Prakash B, Kunhanna SB, Kumar MS. ZnO Nanocatalyst Mediated Convergent Synthesis of Highly Substituted Imidazole and Imidazole‐derived Bi‐heterocyclic Scaffolds as Potential Antibacterial Agents. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3627] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
36
|
Mary YS, Mary YS, Thomas R, Narayana B, Samshuddin S, Sarojini BK, Armaković S, Armaković SJ, Pillai GG. Theoretical Studies on the Structure and Various Physico-Chemical and Biological Properties of a Terphenyl Derivative with Immense Anti-Protozoan Activity. Polycycl Aromat Compd 2019. [DOI: 10.1080/10406638.2019.1624974] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
37
|
Thomas R, Mary YS, Resmi K, Narayana B, Sarojini B, Vijayakumar G, Van Alsenoy C. Two neoteric pyrazole compounds as potential anti-cancer agents: Synthesis, electronic structure, physico-chemical properties and docking analysis. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.01.003] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
38
|
Nayak SR, D’Souza RS, Kamath SS, Mohan MP, Bharath S, Shetty T, Kumara KS, Narayana B, Dileep BN, Ravi PM, Karunakara N. Organically bound tritium: optimization of measurements in environmental matrices by combustion method and liquid scintillation spectrometry. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-018-6395-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
39
|
Stondus J, Anthal S, Karanth S, Narayana B, Sarojini BK, Kant R. 2,4-Dichloro- N-(2,5-dioxopyrrolidin-1-yl)benzamide. IUCRDATA 2018. [DOI: 10.1107/s2414314618017406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In the title compound, C11H8Cl2N2O3, the plane of the pyrrolidine ring (r.m.s. deviation = 0.065 Å) makes a dihedral angle of 52.9 (2)° with the plane of the benzene ring. The least-squares plane of the central amide fragment makes dihedral angles of 49.3 (7) and 77.9 (7)° with those of the benzene and pyrrolidine rings, respectively. In the crystal, molecules are linked via N—H...O hydrogen bonds, forming chains along the b-axis direction. π–π interactions link these chains into a two-dimensional network parallel to (100).
Collapse
|
40
|
Stondus J, Anthal S, Jayashree A, Narayana B, Sarojini BK, Kant R. Polymorph of ( E)- N′-(4-chlorobenzylidene)isonicotinohydrazide monohydrate. IUCRDATA 2018. [DOI: 10.1107/s2414314618016346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
The title hydrate, C13H10ClN3O·H2O, is the orthorhombic polymorph of the previously reported monoclinic compound [Fun et al. (2012). Acta Cryst. E68, o2303–o2304). In the title compound, the dihedral angle between the pyridine and benzene rings is 18.0 (2)°. In the crystal, the Schiff base molecules and water molecules are linked via O—H...O, N—H...O and O—H...N hydrogen bonds, forming a two-dimensional network parallel to (001). In addition, the Schiff base molecules are linked end-to-end by weak C—H...Cl hydrogen along the c-axis direction, forming an overall three-dimensional network. Weak C—H...π interactions are also observed.
Collapse
|
41
|
Sapnakumari M, Narayana B, Shashidhara K, Sarojini B. Multicomponent synthesis, biological evaluation and molecular docking of new spiro-oxindole derivatives. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2018. [DOI: 10.1016/j.jtusci.2017.04.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
42
|
Sureshkumar B, Mary Y, Resmi K, Suma S, Armaković S, Armaković SJ, Van Alsenoy C, Narayana B, Sobhana D. Spectroscopic characterization of hydroxyquinoline derivatives with bromine and iodine atoms and theoretical investigation by DFT calculations, MD simulations and molecular docking studies. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.04.077] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
43
|
Sureshkumar B, Sheena Mary Y, Suma S, Armaković S, Armaković SJ, Alsenoy CV, Narayana B, Sasidharan BP. Spectroscopic characterization of 8-hydroxy-5-nitroquinoline and 5-chloro-8-hydroxy quinoline and investigation of its reactive properties by DFT calculations and molecular dynamics simulations. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.03.088] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
44
|
Vanasundari K, Balachandran V, Kavimani M, Narayana B. Molecular docking, vibrational, structural, electronic and optical studies of {4 – (2, 6) dichlorophenyl amino 2 – methylidene 4 – oxobutanoic acid and 4- (2, 5)} dichlorophenyl amino 2 – methylidene 4 – oxobutanoic acid – A comparative study. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.11.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
45
|
Singh VD, Salian VV, Narayana B, Sarojini BK, Kamni, Anthal S, Kant R. Synthesis and Crystal Structure of a Chalcone Derivative. CRYSTALLOGR REP+ 2018. [DOI: 10.1134/s1063774517070240] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
46
|
Sharma DK, Subbulakshmi KN, Narayana B, Sarojini BK, Anthal S, Kant R. Synthesis and Molecular Structure of 2-(4-Chlorophenyl)-3-(phenyl-amino)-5-(thiophen-2-ylmethylidene)-3,5-dihydro-4H-imidazol-4-one. CRYSTALLOGR REP+ 2018. [DOI: 10.1134/s1063774517070082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
47
|
Kavimani M, Balachandran V, Narayana B, Vanasundari K, Revathi B. Topological analysis (BCP) of vibrational spectroscopic studies, docking, RDG, DSSC, Fukui functions and chemical reactivity of 2-methylphenylacetic acid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 190:47-60. [PMID: 28898821 DOI: 10.1016/j.saa.2017.09.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 09/02/2017] [Accepted: 09/06/2017] [Indexed: 06/07/2023]
Abstract
Experimental FT-IR and FT-Raman spectra of 2-methylphenylacetic acid (MPA) were recorded and theoretical values are also analyzed. The non-linear optical (NLO) properties were evaluated by determination of first (5.5053×10-30 e.s.u.) and second hyper-polarizabilities (7.6833×10-36 e.s.u.) of the title compound. The Multiwfn package is used to find the weak non-covalent interaction (Van der Wall interaction) and strong repulsion (steric effect) of the molecule and examined by reduced density gradient. The molecular electrostatic potential (MEP) analysis used to find the most reactive sites for the electrophilic and nucleophilic attack. The chemical activity (electronegativity, hardness, chemical softness and chemical potential) of the title compound was predicted with the help of HOMO-LUMO energy values. The natural bond orbital (NBO) has been analyzed the stability of the molecule arising from the hyper-conjugative interaction. DSSCs were discussed in structural modifications that improve the electron injection efficiency of the title compound (MPA). The Fukui functions are calculated in order to get information associated with the local reactivity properties of the title compound. The binding sites of the two receptors were reported by molecular docking field and active site bond distance is same 1.9Å. The inhibitor of the title compound forms a stable complex with 1QYV and 2H1K proteins at the binding energies are -5.38 and -5.85 (∆G in kcal/mol).
Collapse
|
48
|
Karunakara N, Kamath S, Narayana B, D'Souza R, Nayak R, Mohan MP, Dileep BN, Baburajan A, Ravi PM. Tritium concentration in ambient air around Kaiga Nuclear Power Plant. RADIATION PROTECTION AND ENVIRONMENT 2018. [DOI: 10.4103/rpe.rpe_20_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
49
|
Kavimani M, Balachandran V, Narayana B, Vanasundari K, Revathi B. Quantum chemical calculation (RDG) of molecular structural evaluation, Hirshfeld, DSSC and docking studies of 4-nitrophenylacetic acid. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.07.094] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
50
|
Vanasundari K, Balachandran V, Kavimani M, Narayana B. Spectroscopic investigation, vibrational assignments, Fukui functions, HOMO-LUMO, MEP and molecular docking evaluation of 4 – [(3, 4 – dichlorophenyl) amino] 2 – methylidene 4 – oxo butanoic acid by DFT method. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.06.096] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|