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Yang M, Mu H, Gao J, Zhen Q, Wang X, Guan X, Li H, Li B. Screening the Optimal Probe by Expounding the ESIPT Mechanism and Photophysical Properties in Bis-HBX with Multimodal Substitutions. Molecules 2024; 29:2692. [PMID: 38893566 PMCID: PMC11173473 DOI: 10.3390/molecules29112692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 05/31/2024] [Accepted: 06/04/2024] [Indexed: 06/21/2024] Open
Abstract
DFT and TD-DFT were used in this article to investigate the effects of different substitutions at multiple sites on the photophysical mechanism of bis-HBX in the gas phase. Four different substitution modes were selected, denoted as A1 (X=Me, Y=S), A2 (X=OMe, Y=S), B1 (X=Me, Y=NH), and C1 (X=Me, Y=O). The geometric parameters proved that the IHBs enhanced after photoexcitation, which was conducive to promote the ESIPT process. Combining the analysis of the PECs, it was revealed that the bis-HBX molecule underwent the ESIPT process, and the ease of the ESIPT process was in the order of A1 > A2> B1 > C1. In particular, the TICT process in A1 and B1 promoted the occurrence of the ESIPT process. In addition, the IC process was identified, particularly in C1. Meanwhile, the calculation of fluorescence lifetime and fluorescence rate further confirmed that A1 was the most effective fluorescent probe molecule. This theoretical research provides an innovative theoretical reference for regulating ESIPT reactions and optimizing fluorescent probe molecules.
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Affiliation(s)
- Min Yang
- Jilin Key Laboratory of Solid-State Laser Technology and Application, School of Physics, Changchun University of Science and Technology, Changchun 130022, China; (M.Y.); (H.M.); (J.G.); (X.W.); (X.G.)
| | - Hongyan Mu
- Jilin Key Laboratory of Solid-State Laser Technology and Application, School of Physics, Changchun University of Science and Technology, Changchun 130022, China; (M.Y.); (H.M.); (J.G.); (X.W.); (X.G.)
| | - Jiaan Gao
- Jilin Key Laboratory of Solid-State Laser Technology and Application, School of Physics, Changchun University of Science and Technology, Changchun 130022, China; (M.Y.); (H.M.); (J.G.); (X.W.); (X.G.)
| | - Qi Zhen
- School of Civil Engineering, Changchun Institute of Technology, Changchun 130012, China;
| | - Xiaonan Wang
- Jilin Key Laboratory of Solid-State Laser Technology and Application, School of Physics, Changchun University of Science and Technology, Changchun 130022, China; (M.Y.); (H.M.); (J.G.); (X.W.); (X.G.)
| | - Xiaotong Guan
- Jilin Key Laboratory of Solid-State Laser Technology and Application, School of Physics, Changchun University of Science and Technology, Changchun 130022, China; (M.Y.); (H.M.); (J.G.); (X.W.); (X.G.)
| | - Hui Li
- Jilin Key Laboratory of Solid-State Laser Technology and Application, School of Physics, Changchun University of Science and Technology, Changchun 130022, China; (M.Y.); (H.M.); (J.G.); (X.W.); (X.G.)
| | - Bo Li
- State Key Laboratory of High Power Semiconductor Lasers, School of Physics, Changchun University of Science and Technology, Changchun 130022, China
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Tang X, Zhang Y, Sun C. Effect of external electric fields on the ESDPT process and photophysical properties of 1,8-dihydroxy-2-naphthaldehyde. Phys Chem Chem Phys 2024; 26:10439-10448. [PMID: 38502564 DOI: 10.1039/d3cp06175b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
In this work, by capitalizing on the density functional theory (DFT) and the time-dependent density functional theory (TD-DFT) methods, it has been systematically studied that the excited state double intramolecular proton transfer (ESDPT) process and the photophysical properties of 1,8-dihydroxy-2-naphthaldehyde (DHNA) are affected by the distinct external electric fields (EEFs). The obtained intramolecular hydrogen bond (IHB) parameters containing bond lengths and angles, as well as infrared (IR) vibrational spectra demonstrate that IHB strength changes in the distinct EEFs. Moreover, not only do the potential energy surfaces (PESs) indicate that the ESDPT process of DHNA is stepwise, but also increasing the positive EEF results in a decrease in the energy barrier accordingly, while vice versa. The absorption and fluorescence spectra also undergo a corresponding red or blue shift in the EEF; for instance, when the EEF changes from +10 × 10-4 a.u. to +20 × 10-4 a.u., the fluorescence peak undergoes a blue shift from 602 nm to 513 nm in the keto2 form. In a nutshell, the ESDPT process of DHNA can be influenced by the EEF, which will serve as a reference in regulating and controlling proton transfer that causes luminescence.
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Affiliation(s)
- Xingzhu Tang
- College of Science, Northeast Forestry University, Harbin 150040, Heilongjiang, China.
| | - Yajie Zhang
- College of Science, Northeast Forestry University, Harbin 150040, Heilongjiang, China.
| | - Chaofan Sun
- College of Science, Northeast Forestry University, Harbin 150040, Heilongjiang, China.
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Elçin S, Gönül R. Synthesis and characterization of a chemosensor based on trisamidetetraazocalix[4]arene linked by melamine. MONATSHEFTE FUR CHEMIE 2023. [DOI: 10.1007/s00706-023-03045-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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4
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Substituent effects on photophysical properties of ESIPT-based fluorophores bearing the 4-diethylaminosalicylaldehyde core. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Zhang Y, Shang C, Cao Y, Sun C. Quantum mechanics/molecular mechanics studies on the photoprotection mechanisms of three chalcones. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.121165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Zhang Y, Shang C, Cao Y, Ma M, Sun C. Insights into the photophysical properties of 2-(2'-hydroxyphenyl) benzazoles derivatives: Application of ESIPT mechanism on UV absorbers. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 280:121559. [PMID: 35777226 DOI: 10.1016/j.saa.2022.121559] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/12/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
In this present work, four novel molecules (BPN, BPNS, BPS, and BPSN), possessing excited-state intramolecular proton transfer (ESIPT) characteristics, were designed to quantify the impacts of substituent effects on their photophysical properties. By exploring the primary geometrical parameters concerning hydrogen bonds, it should be noticed that the intramolecular hydrogen bonds (IHBs) of the studied molecules have been strengthened at S1 state. Infrared vibrational spectra analysis illustrates that adding electron-donating group thiophene to the proton donor side can weaken the IHBs in comparison to the electron-withdrawing group pyridine. Through investigating the absorption and fluorescence spectra, it can be clearly found that the maximum absorption peaks of the studied molecules are all located in the UVA region, and their regions of fluorescence peaks are harmless to human skin. Furthermore, considering the light intensity factor, it can be concluded that BPNS is the most potential to be used as UV absorbers in the studied molecules. This work investigates the effects of the positions and types of substituent groups on photophysical properties of 2-(2'-hydroxyphenyl) benzazoles derivatives, which can help design and exploit novel UV absorbers.
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Affiliation(s)
- Yajie Zhang
- College of Science, Northeast Forestry University, Harbin 150040, China
| | - Changjiao Shang
- College of Science, Northeast Forestry University, Harbin 150040, China
| | - Yunjian Cao
- College of Science, Northeast Forestry University, Harbin 150040, China
| | - Min Ma
- College of Science, Northeast Forestry University, Harbin 150040, China
| | - Chaofan Sun
- College of Science, Northeast Forestry University, Harbin 150040, China.
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Yu X, Shang C, Cao Y, Cui J, Sun C. A DFT/TD-DFT Study on the ESIPT-Type Flavonoid Derivatives with High Emission Intensity. MATERIALS 2022; 15:ma15082896. [PMID: 35454589 PMCID: PMC9031961 DOI: 10.3390/ma15082896] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/06/2022] [Accepted: 04/11/2022] [Indexed: 02/01/2023]
Abstract
To reveal the influence of different substituents on the excited-state intramolecular proton transfer (ESIPT) process and photophysical properties of 4′-N, N-dimethylamino-3-hydroxyflavone (DMA3HF), two novel molecules (DMA3HF-CN and DMA3HF-NH2) were designed by introducing the classical electron-withdrawing group cyano (-CN) and electron-donating group amino (-NH2). The three molecules in the acetonitrile phase were systematically researched by applying the density functional theory (DFT) and time-dependent DFT (TD-DFT) methods. The excited-state hydrogen bond enhancement mechanism was confirmed, and the hydrogen bond intensity followed the decreasing order of DMA3HF-NH2 > DMA3HF > DMA3HF-CN, which can be explained at the electronic level by natural bond orbital, fuzzy bond order, and frontier molecular orbital analyses. Moreover, we found from the electronic spectra that the fluorescence intensity of the three molecules in keto form is relatively strong. Moreover, the calculated absorption properties indicated that introducing the electron-withdrawing group -CN could significantly improve the absorption of DMA3HF in the ultraviolet band. In summary, the introduction of an electron-donating group -NH2 can promote the ESIPT reaction of DMA3HF, without changing the photophysical properties, while introducing the electron-withdrawing group -CN can greatly improve the absorption of DMA3HF in the ultraviolet band, but hinders the occurrence of the ESIPT reaction.
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Tuning the optoelectronic properties of scaffolds by using variable central core unit and their photovoltaic applications. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.139018] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Sakr MA, Mohamed AA, Abou Kana MT, Elwahy AH, El-Daly SA, Ebeid EZM. Synthesis, characterization, DFT and TD-DFT study of novel bis(5,6-diphenyl-1,2,4-triazines). J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129345] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Yadav VK, Prasad DL, Yadav A, Yadav K. On the solvent‐ and temperature‐driven stereoselectivity of the Diels–Alder cycloaddition reactions of furan with maleic anhydride and maleimide. J PHYS ORG CHEM 2020. [DOI: 10.1002/poc.4131] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - Arpita Yadav
- Department of Chemistry, UIET CSJM University Kanpur India
| | - Kedar Yadav
- Department of Chemistry Indian Institute of Technology Kanpur India
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