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Al-Otaibi JS, Mary YS, Mary YS. Spectroscopic analyses on an azatricycloderivative by DFT with different solvents, reactivity analysis and MD simulations. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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2
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Kole PB, Kollur SP, Revanasiddappa HD, Shivamallu C, Costa RA, Junior ESA, Anselmo LM, da Silva JN, Srinivasa C, Syed A, Singh FV. Structural, Electronic, Vibrational and Pharmacological Investigations of Highly Functionalized Diarylmethane Molecules Using DFT Calculations, Molecular Dynamics and Molecular Docking. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2041050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Priyanka B. Kole
- Chemistry Division, School of Advanced Science, VIT University, Chennai, India
| | - Shiva Prasad Kollur
- School of Agriculture, Geography, Environment, Ocean and Natural Sciences (SAGEONS), The University of the South Pacific, Suva, Fiji
- Department of Sciences, Amrita School of Arts and Sciences, Amrita Vishwa Vidyapeetham, Mysuru, India
| | | | - Chandan Shivamallu
- Department of Biotechnology and Bioinformatics, Faculty of Life Sciences, JSS Academy of Higher Education and Research (JSSAHER), Mysuru, India
| | - Renyer A. Costa
- Department of Chemistry, Federal University of Amazonas (DQ-UFAM), Manaus, Brazil
| | - Earle S. A. Junior
- Department of Chemistry, Federal University of Amazonas (DQ-UFAM), Manaus, Brazil
| | - Lucas M. Anselmo
- Department of Chemistry, Federal University of Amazonas (DQ-UFAM), Manaus, Brazil
| | - Jonathas N. da Silva
- Department of Chemistry, Federal University of Amazonas (DQ-UFAM), Manaus, Brazil
| | | | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Fateh V. Singh
- Chemistry Division, School of Advanced Science, VIT University, Chennai, India
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Mahdy AR, Alfaifi MY, El-Gareb MS, Farouk N, Elshaarawy RF. Design, synthesis, and physicochemical characterization of new aminothiohydantoin Schiff base complexes for cancer chemotherapy. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120504] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Quantum chemical studies, vibrational analysis, molecular dynamics and docking calculations of some ent-kaurane diterpenes from Annona vepretorum: a theoretical approach to promising anti-tumor molecules. Struct Chem 2020. [DOI: 10.1007/s11224-020-01491-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Kobyłka K, Żuchowski G, Tejchman W, Zborowski KK. Synthesis, spectroscopy, and theoretical calculations of some 2-thiohydantoin derivatives as possible new fungicides. J Mol Model 2019; 25:268. [PMID: 31446500 DOI: 10.1007/s00894-019-4146-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 08/08/2019] [Indexed: 11/27/2022]
Abstract
We present the synthesis and structure determination for two thiohydantoin compounds (5-benzylidene-2-sulfanylideneimidazolidin-4-one and 5-cinnamylidene-2-sulfanylideneimidazolidin-4-one), proposed as potential novel fungicides. The exact chemical structure of these molecules has not yet been determined since they can potentially exist in several tautomeric and geometric forms (Z-E isomerism). The geometries of all the theoretically possible structures of the studied compounds were optimised. The calculations were performed at the density functional theory level using the B3LYP functional and the 6-311++G** basis set. Based on our calculations, the most probable structures of the studied compounds were proposed. The theoretical predictions were verified by comparing the calculated IR as well as the 1H and 13C NMR spectra with the experimental data. It was documented that both the studied compounds exist predominantly in the tautomeric structure, in which the movable hydrogen is connected to the nitrogen atom in the hydantoin ring. It has been experimentally proven that one of the studied compounds occurs only as a single structure, whereas the other one exists as a mixture of two geometric isomers. Schematic presentation of synthesis reaction and predicted percentage contents of studied compounds in products mixture.
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Affiliation(s)
- Katarzyna Kobyłka
- Faculty of Chemistry, Jagiellonian University in Kraków, Gronostajowa 2, 30-387, Kraków, Poland
| | - Grzegorz Żuchowski
- Department of Organic Chemistry, Medical College, Jagiellonian University in Kraków, Medyczna 9, 30-688, Kraków, Poland
| | - Waldemar Tejchman
- Department of Chemistry, Institute of Biology, Pedagogical University of Kraków, Podchorążych 2, 30-084, Kraków, Poland
| | - Krzysztof K Zborowski
- Faculty of Chemistry, Jagiellonian University in Kraków, Gronostajowa 2, 30-387, Kraków, Poland.
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Yu Y, Chu N, Pan Q, Zhou M, Qiao S, Zhao Y, Wang C, Li X. Solvent Effects on Gelation Behavior of the Organogelator Based on L-Phenylalanine Dihydrazide Derivatives. MATERIALS 2019; 12:ma12121890. [PMID: 31212767 PMCID: PMC6631004 DOI: 10.3390/ma12121890] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 06/03/2019] [Accepted: 06/04/2019] [Indexed: 12/23/2022]
Abstract
A series of organogelators based on L-phenylalanine has been synthesized and their gelation properties in various organic solvents were investigated. The results showed that these organogelators were capable of forming stable thermal and reversible organogels in various organic solvents at low concentrations, and the critical gel concentration (CGC) of certain solvents was less than 1.0 wt%. Afterward, the corresponding enthalpies (ΔHg) were extracted by using the van ’t Hoff equation, as the gel–sol temperature (TGS) was the function of the gelator concentration. The study of gelling behaviors suggested that L-phenylalanine dihydrazide derivatives were excellent gelators in solvents, especially BOC–Phe–OdHz (compound 4). The effects of the solvent on the self-assembly of gelators were analyzed by the Kamlet–Taft model, and the gelation ability of compound 4 in a certain organic solvent was described by Hansen solubility parameters and a Teas plot. Morphological investigation proved that the L-phenylalanine dihydrazide derivatives could assemble themselves into an ordered structure such as a fiber or sheet. Fourier-transform infrared spectroscopy (FTIR) and hydrogen nuclear magnetic resonance (1H NMR) studies indicated that hydrogen bonding, π–π stacking, and van der Waals forces played important roles in the formation of a gel.
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Affiliation(s)
- Yang Yu
- The Key Laboratory of the Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry, Shenyang University of Chemical Technology, Shenyang 110142, China.
| | - Ning Chu
- The Key Laboratory of the Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry, Shenyang University of Chemical Technology, Shenyang 110142, China.
| | - Qiaode Pan
- The Key Laboratory of the Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry, Shenyang University of Chemical Technology, Shenyang 110142, China.
| | - Miaomiao Zhou
- The Key Laboratory of the Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry, Shenyang University of Chemical Technology, Shenyang 110142, China.
| | - Sheng Qiao
- The Key Laboratory of the Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry, Shenyang University of Chemical Technology, Shenyang 110142, China.
| | - Yanan Zhao
- The Key Laboratory of the Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry, Shenyang University of Chemical Technology, Shenyang 110142, China.
| | - Chuansheng Wang
- The Key Laboratory of the Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry, Shenyang University of Chemical Technology, Shenyang 110142, China.
| | - Xiangyun Li
- Yingkou Baoshan Ecology Coating Co., Ltd., Yingkou 115004, China.
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Adsorption Structure and Mechanism of Styryl Phosphoric Acid at the Rutile–Water Interface. MINERALS 2018. [DOI: 10.3390/min8080360] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The microstructure and mechanism of styryl phosphoric acid (SPA) adsorbed at the rutile–water interface were investigated through zeta potential measurement, ultraviolet-visible spectrophotometry (UV-Vis), Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). The results of the zeta potential measurement illustrate that SPA is mainly electrostatically adsorbed on the rutile surface, and the adsorption process and result can be well fitted by the Stern-Grahame equation. The adsorption is severely affected by pH due to different species of SPA occurring in different pH solutions. The compound of P–O–Ti, with a structure of bidentate binuclear or bidentate mononuclear complexes, is formed after SPA is adsorbed on the rutile surface. SPA can be adsorbed on the rutile surface through the coordination of self-polymerization and bidentate mononuclear, which greatly increases the hydrophobicity of the rutile surface. Based on the above analysis and discussion, we proposed the adsorption model of SPA at the rutile–water interface, which was conducive to the modification and synthesis of a highly efficient flotation collector of the primary rutile ore.
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Zülfikaroğlu A, Batı H, Dege N. A theoretical and experimental study on isonitrosoacetophenone nicotinoyl hydrazone: Crystal structure, spectroscopic properties, NBO, NPA and NLMO analyses and the investigation of interaction with some transition metals. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.02.079] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Agrawal M, Kumar A, Gupta A. Conformational stability, spectroscopic signatures and biological interactions of proton pump inhibitor drug lansoprazole based on structural motifs. RSC Adv 2017. [DOI: 10.1039/c7ra00130d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Structure based biological and chemical properties of lansoprazole (LSP) have been studied by spectroscopic and quantum chemical methods.
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Affiliation(s)
- Megha Agrawal
- Department of Applied Physics
- Faculty of Engineering & Technology
- M. J. P. Rohilkhand University
- Bareilly
- India
| | - Amit Kumar
- Department of Applied Physics
- Faculty of Engineering & Technology
- M. J. P. Rohilkhand University
- Bareilly
- India
| | - Archana Gupta
- Department of Applied Physics
- Faculty of Engineering & Technology
- M. J. P. Rohilkhand University
- Bareilly
- India
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Yüce AO, Telli E, Mert BD, Kardaş G, Yazıcı B. Experimental and quantum chemical studies on corrosion inhibition effect of 5,5 diphenyl 2-thiohydantoin on mild steel in HCl solution. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.02.087] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Structural, Vibrational, and Electronic Properties of the Glucoalkaloid Strictosidine: A Combined Experimental and Theoretical Study. J CHEM-NY 2016. [DOI: 10.1155/2016/1752429] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A detailed structural analysis and spectral behavior of the glucoalkaloid strictosidine, a precursor of all monoterpene indole alkaloids, are discussed. The experimental NMR, FTIR, and UV results were compared to the theoretical DFT spectra calculated by Becke using the three-parameter Lee-Yang-Parr (B3LYP) function with 6-31G(d) and 6-311++G(2d,p) basis sets. The theoretical geometry optimization data were compared with the X-ray data for precursors and similar structures in the associated literature. The similarity between the theoretical and experimental coupling constants values made it possible to affirm the values of dihedral angles and their configuration, reinforcing findings from previous stereochemical studies. Theoretical UV analysis agreed well with the measured experimental data, with bands assigned. Calculated HOMO/LUMO gaps show low excitation energy for strictosidine, justifying its stability and reaction kinetics. The molecular electrostatic potential map shows opposite potentials regions that form hydrogen bonds that stabilize the dimeric form, which were confirmed by excellent agreement of the dimeric form theoretical wavenumbers with the experimental IR spectrum. ESI-MS/MS data revealed patterns for the fragmentation of the protonated strictosidine molecule outlined by an NBO study.
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