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Zhang L, Chen M, Li Z, Teng Y, Wang G, Xue Y. Photophysical properties and sensing mechanism of fluorescent coumarin–chalcone hybrid for biothiols: A theoretical study. J PHYS ORG CHEM 2022. [DOI: 10.1002/poc.4324] [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)
- Ling Zhang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy Xuzhou Medical University Xuzhou Jiangsu China
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine Jiangsu Institute of Nuclear Medicine Wuxi Jiangsu China
| | - Mohan Chen
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy Xuzhou Medical University Xuzhou Jiangsu China
| | - Zheng Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy Xuzhou Medical University Xuzhou Jiangsu China
| | - Yangxin Teng
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy Xuzhou Medical University Xuzhou Jiangsu China
| | - Guirong Wang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy Xuzhou Medical University Xuzhou Jiangsu China
| | - Yunsheng Xue
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy Xuzhou Medical University Xuzhou Jiangsu China
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Elroby SA, Banaser BA, Aziz SG, Jedidi A, Hassan WI, Osman OI. Zn 2+-Schiff's Base Complex as an "On-Off-On" Molecular Switch and a Fluorescence Probe for Cu 2+ and Ag + Ions. J Fluoresc 2022; 32:691-705. [PMID: 35040031 DOI: 10.1007/s10895-021-02864-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 11/29/2021] [Indexed: 11/30/2022]
Abstract
The present study presents a thorough theoretical analysis of the electronic structure and conformational preference of Schiff's base ligand N,N-bis(2-hydroxybenzilidene)-2,4,6-trimethyl benzene-1,3-diamine (H2L) and its metal complexes with Zn2+, Cu2+ and Ag+ ions. This study aims to investigate the behavior of H2L and the binuclear Zn2+ complex (1) as fluorescent probes for the detection of metal ions (Zn2+, Cu2+ and Ag+) using density functional theory (DFT) and time-dependent density functional theory (TDDFT). The six conformers of the H2L ligand were optimized using the B3LYP/6-311 + + G** level of theory, while the L-2-metal complexes were optimized by applying the B3LYP functional with the LANL2DZ/6-311 + + G** mixed basis set. The gas-phase and solvated Enol-cis isomer (E-cis) was found to be the most stable species. The absorption spectra of the E-cis isomer and its metal complexes were simulated using B3LYP, CAM-B3LYP, M06-2X and ωB97X functionals with a 6-311 + + G** basis set for C, O, N and H atoms and a LANL2DZ basis set for the metal ions (Zn2+, Cu2+ and Ag+). The computational results of the B3LYP functional were in excellent agreement with the experimental results. Hence, it was adopted for performing the emission calculations. The results indicated that metal complex (1) can act as a fluorescent chemosensor for the detection of Ag+ and Cu2+ ions through the mechanism of intermolecular charge transfer (ICT) and as a molecular switch "On-Off-On" via the replacement of Cu2+ by Ag+ ions, as proved experimentally.
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Affiliation(s)
- Shaaban A Elroby
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia. .,Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, Egypt.
| | | | - Saadullah G Aziz
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Abdesslem Jedidi
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Walid I Hassan
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Osman I Osman
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.,Chemistry Department, Faculty of Science, University of Khartoum, P.O. Box 321, Khartoum, 11111, Sudan
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Yang G, Jin X, Chen K, Yang D. Hydrogen bonding interactions induced excited state proton transfer and fluoride anion sensing mechanism for 2‐(3,5‐dichloro‐2,6‐dihydroxy‐phenyl)‐benzoxazole‐5‐carboxylicacid. J PHYS ORG CHEM 2020. [DOI: 10.1002/poc.4054] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Guang Yang
- Basic Teaching DepartmentJiaozuo University Jiaozuo China
| | - Xiaofeng Jin
- Basic Teaching DepartmentJiaozuo University Jiaozuo China
| | - Kaifeng Chen
- Basic Teaching DepartmentJiaozuo University Jiaozuo China
| | - Dapeng Yang
- College of Physics and ElectronicsNorth China University of Water Resources and Electric Power Zhengzhou China
- State Key Laboratory of Molecular Reaction DynamicsDalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian China
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DFT/TDDFT investigation on the D–π–A type molecule probes 4-(5-R-thiophen-2-yl)-2-isobutyl-2H-[1,2,3]triazolo[4,5-e][1,2,4] triazolo[1,5-a]pyrimidines: fluorescence sensing mechanism and roles of weak interactions. Theor Chem Acc 2019. [DOI: 10.1007/s00214-019-2520-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Wang Y, Zhang Q, Xu K, Jiang W, Yang D. A theoretical exploration and regulating about the excited state process for 2‐(4‐(diphenylamino)phenyl)‐3‐hydroxy‐4H‐chromen‐4‐one system. J PHYS ORG CHEM 2019. [DOI: 10.1002/poc.4010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Yusheng Wang
- College of Physics and ElectronicsNorth China University of Water Resources and Electric Power Zhengzhou PR China
| | - Qiaoli Zhang
- College of Physics and ElectronicsNorth China University of Water Resources and Electric Power Zhengzhou PR China
| | - Kai Xu
- College of Physics and ElectronicsNorth China University of Water Resources and Electric Power Zhengzhou PR China
| | - Weifen Jiang
- College of Physics and ElectronicsNorth China University of Water Resources and Electric Power Zhengzhou PR China
| | - Dapeng Yang
- College of Physics and ElectronicsNorth China University of Water Resources and Electric Power Zhengzhou PR China
- State Key Laboratory of Molecular Reaction DynamicsDalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian PR China
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Wang L, Wang Y, Zhao J, Zhao J. Theoretical investigation about the excited‐state proton transfer mechanism for a novel dihydorgen bond system. J PHYS ORG CHEM 2019. [DOI: 10.1002/poc.3954] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Lifei Wang
- School of ScienceShandong Jiaotong University Jinan China
| | - Yan Wang
- School of ScienceShandong Jiaotong University Jinan China
| | - Juan Zhao
- School of ScienceShandong Jiaotong University Jinan China
| | - Jinfeng Zhao
- School of PhysicsShandong University Jinan China
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Density Functional Theory Applied to Excited State Intramolecular Proton Transfer in Imidazole-, Oxazole-, and Thiazole-Based Systems. Molecules 2018; 23:molecules23051231. [PMID: 29883373 PMCID: PMC6100175 DOI: 10.3390/molecules23051231] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/15/2018] [Accepted: 05/17/2018] [Indexed: 01/28/2023] Open
Abstract
Excited state intramolecular proton transfer (ESIPT) is a photoinduced process strongly associated to hydrogen bonding within a molecular framework. In this manuscript, we computed potential energy data using Time Dependent Density Functional Theory (TDDFT) for triphenyl-substituted heterocycles, which evidenced an energetically favorable proton transfer on the excited state (i.e., ESIPT) but not on the ground state. Moreover, we describe how changes on heterocyclic functionalities, based on imidazole, oxazole, and thiazole systems, affect the ESIPT process that converts an enolic species to a ketonic one through photon-induced proton transfer. Structural and photophysical data were obtained theoretically by means of density functional theory (DFT) calculations and contrasted for the three heterocyclics. Different functionals were used, but B3LYP was the one that adequately predicted absorption data. It was observed that the intramolecular hydrogen bond is strengthened in the excited state, supporting the occurrence of ESIPT. Finally, it was observed that, with the formation of the excited state, there is a decrease in electronic density at the oxygen atom that acts as proton donor, while there is a substantial increase in the corresponding density at the nitrogen atom that serves as proton acceptor, thus, indicating that proton transfer is indeed favored after photon absorption.
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Yin H, Shi Y. Theoretical investigation on the excited state intramolecular proton coupled charge transfer phenomenon for a novel fluorophore. J PHYS ORG CHEM 2018. [DOI: 10.1002/poc.3856] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Hang Yin
- Institute of Atomic and Molecular Physics; Jilin University; Changchun China
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry; Jilin University; Changchun China
| | - Ying Shi
- Institute of Atomic and Molecular Physics; Jilin University; Changchun China
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Yang D, Yang G, Zhao J, Song N, Zheng R, Wang Y. Solvent controlling excited state proton transfer reaction in quinoline/isoquinoline-pyrazole isomer QP-I: A theoretical study. J PHYS ORG CHEM 2017. [DOI: 10.1002/poc.3729] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Dapeng Yang
- College of Mathematics and Information Science; North China University of Water Resources and Electric Power; Zhengzhou China
- Department of Basic Science; Jiaozuo University; Jiaozuo China
| | - Guang Yang
- Department of Basic Science; Jiaozuo University; Jiaozuo China
| | - Jinfeng Zhao
- State Key Laboratory of Molecular Reaction Dynamics, Theoretical and Computational Chemistry, Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian China
| | - Nahong Song
- College of Computer and Information Engineering; Henan University of Economics and Law; Zhengzhou China
| | - Rui Zheng
- College of Mathematics and Information Science; North China University of Water Resources and Electric Power; Zhengzhou China
| | - Yusheng Wang
- College of Mathematics and Information Science; North China University of Water Resources and Electric Power; Zhengzhou China
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