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Jani T, P C V, Vinodkumar M. Theoretical Investigation of Electron Impact Scattering on Imidazole. J Phys Chem A 2023. [PMID: 37258493 DOI: 10.1021/acs.jpca.3c02246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This study presents the results of electron scattering calculations on a biologically important molecule, imidazole, using the UK molecular R-matrix method. The R-matrix calculations are performed using SE, SEP, and CC models, and the resonance detected in the present SEP model is found to be in better agreement with available experimental data than previous theoretical data. The study also reports an inelastic scattering cross section, which comprises dissociative electron attachment (DEA), excitation, and ionization cross section, for the first time. The total scattering cross sections are also reported for the first time. We confirm the presence of the two well-known π* shape resonances predicted earlier experimentally. Due to the scarcity of total scattering cross section (TCS) data for imidazole, we have compared the TCS of imidazole with its isoelectronic target isoxazole and drawn important conclusions. A comparison among the resonances of imidazole with those of isoxazole helps us to conclude that electron attachment to π* molecular orbitals is a general feature displayed by these five-membered heterocyclic compounds. The comprehensive electron scattering studies presented in this work are expected to provide a deeper understanding of electron-induced biochemical processes and fill gaps in the available data. Furthermore, this study is anticipated to inspire further investigations on imidazole and other five-membered heterocyclic ring molecules, which have significant applications in medicine.
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Affiliation(s)
- Tejas Jani
- Gujarat Arts & Science College, Gujarat University, Ahmedabad 38006, India
- V.P. & R.P.T.P. Science College, Sardar Patel University, Vallabh Vidyanagar 388120, India
| | - Vinodkumar P C
- P. D. Patel Institute of Applied Science, CHARUSAT, Changa, Anand 388001, India
| | - Minaxi Vinodkumar
- V.P. & R.P.T.P. Science College, Sardar Patel University, Vallabh Vidyanagar 388120, India
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Liu Y, Cui H, Wei K, Kang M, Liu P, Yang X, Pei M, Zhang G. A new Schiff base derived from 5-(thiophene-2-yl)oxazole as "off-on-off" fluorescence sensor for monitoring indium and ferric ions sequentially and its application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 292:122376. [PMID: 36709682 DOI: 10.1016/j.saa.2023.122376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/15/2022] [Accepted: 01/12/2023] [Indexed: 06/18/2023]
Abstract
A new Schiff base sensor (E)-N'-((8-hydroxy-2,3,6,7-tetrahydro-1H,5H-pyrido[3,2,1-ij]quinolin-9-yl)methylene)-5-(thiophen-2-yl)oxazole-4-carbohydrazide (TOQ) was synthesized and found to emit yellowish green fluorescence upon introduction of In3+. Furthermore, the resulting complex TOQ-In3+ was quenched selectively by Fe3+. The detection limits of TOQ for In3+ and Fe3+ were 1.75 × 10-10 M and 8.45 × 10-9 M, respectively. The complex stoichiometry of TOQ with target ions was determined to be 1:2 via Job's plot analysis, which further was verified by ESI-MS titration and theoretical calculations. Moreover, TOQ can be used for the determination of target ions in environmental water samples. A portable paper sensor of TOQ was successfully developed for detecting In3+ to assess its applicability.
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Affiliation(s)
- Yuanying Liu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Huanxia Cui
- Henan Sanmenxia Aoke Chemical Industry Co. Ltd., Sanmenxia 472000, China.
| | - Kehui Wei
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Mingyi Kang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Peng Liu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Xiaofeng Yang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Meishan Pei
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Guangyou Zhang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
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Liu Y, Yang F, Wei K, Kang M, Liu P, Yang X, Pei M, Zhang G. 5-(thiophene-2-yl)oxazole derived “off-on-off” fluorescence chemosensor for sequential recognition of In3+ and Cr3+ ions. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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Roy TK, Chatterjee K, Khatri J, Schwaab G, Havenith M. Stepwise Microhydration of Isoxazole: Infrared Spectroscopy of Isoxazole-(Water)n≤2 Clusters in Helium Nanodroplets. J Phys Chem A 2021; 125:4766-4774. [DOI: 10.1021/acs.jpca.1c01974] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tarun Kumar Roy
- Lehrstuhl für Physikalische Chemie II, Ruhr-Universität Bochum, 44801 Bochum, Germany
| | - Kuntal Chatterjee
- Lehrstuhl für Physikalische Chemie II, Ruhr-Universität Bochum, 44801 Bochum, Germany
| | - Jai Khatri
- Lehrstuhl für Physikalische Chemie II, Ruhr-Universität Bochum, 44801 Bochum, Germany
| | - Gerhard Schwaab
- Lehrstuhl für Physikalische Chemie II, Ruhr-Universität Bochum, 44801 Bochum, Germany
| | - Martina Havenith
- Lehrstuhl für Physikalische Chemie II, Ruhr-Universität Bochum, 44801 Bochum, Germany
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Gümüş M, Koca İ. Enamines and Dimethylamino Imines as Building Blocks in Heterocyclic Synthesis: Reactions of DMF‐DMA Reagent with Different Functional Groups. ChemistrySelect 2020. [DOI: 10.1002/slct.202002205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mehmet Gümüş
- Akdağmadeni Health College Yozgat Bozok University Yozgat Turkey
| | - İrfan Koca
- Department of Chemistry Faculty of Art & Sciences Yozgat Bozok University Yozgat Turkey
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Zheng X, Liu W, Zhang D. Recent Advances in the Synthesis of Oxazole-Based Molecules via van Leusen Oxazole Synthesis. Molecules 2020; 25:molecules25071594. [PMID: 32244317 PMCID: PMC7180750 DOI: 10.3390/molecules25071594] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 03/19/2020] [Accepted: 03/23/2020] [Indexed: 11/25/2022] Open
Abstract
Oxazole compounds, including one nitrogen atom and one oxygen atom in a five-membered heterocyclic ring, are present in various biological activities. Due to binding with a widespread spectrum of receptors and enzymes easily in biological systems through various non-covalent interactions, oxazole-based molecules are becoming a kind of significant heterocyclic nucleus, which have received attention from researchers globally, leading them to synthesize diverse oxazole derivatives. The van Leusen reaction, based on tosylmethylisocyanides (TosMICs), is one of the most appropriate strategies to prepare oxazole-based medicinal compounds. In this review, we summarize the recent advances of the synthesis of oxazole-containing molecules utilizing the van Leusen oxazole synthesis from 1972, aiming to look for potential oxazole-based medicinal compounds, which are valuable information for drug discovery and synthesis.
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Affiliation(s)
- Xunan Zheng
- College of Chemistry, Jilin University, Changchun 130012, China;
- College of Plant Science, Jilin University, Changchun 130062, China
| | - Wei Liu
- Department of Pesticide Science, Plant Protection College, Shenyang Agricultural University, Shenyang 110866, China
- Correspondence: (W.L.); (D.Z.); Tel.: +86-188-1775-2588 (W.L.); +86-431-8783-6471 (D.Z.)
| | - Dawei Zhang
- College of Chemistry, Jilin University, Changchun 130012, China;
- Correspondence: (W.L.); (D.Z.); Tel.: +86-188-1775-2588 (W.L.); +86-431-8783-6471 (D.Z.)
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7
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Affiliation(s)
- Kuntal Chatterjee
- Institut für Optik und Atomare Physik, TU Berlin, Hardenbergstr. 36, 10623 Berlin, Germany
| | - Otto Dopfer
- Institut für Optik und Atomare Physik, TU Berlin, Hardenbergstr. 36, 10623 Berlin, Germany
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Chatterjee K, Dopfer O. Unraveling the protonation site of oxazole and solvation with hydrophobic ligands by infrared photodissociation spectroscopy. Phys Chem Chem Phys 2019; 21:15157-15166. [DOI: 10.1039/c9cp02787d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Infrared spectroscopy reveals exclusive N-protonation of the oxazole ring and bifurcated or linear hydrogen bonding with hydrophobic N2and Ar ligands.
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Affiliation(s)
| | - Otto Dopfer
- Institut für Optik und Atomare Physik
- TU Berlin
- 10623 Berlin
- Germany
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Ponikvar-Svet M, Zeiger DN, Liebman JF. Interplay of thermochemistry and Structural Chemistry, the journal (volume 28, 2017, issues 3–4) and the discipline. Struct Chem 2018. [DOI: 10.1007/s11224-018-1137-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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10
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The Construction and Application of C=S Bonds. Top Curr Chem (Cham) 2018; 376:31. [DOI: 10.1007/s41061-018-0209-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 06/24/2018] [Indexed: 01/30/2023]
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