1
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Li G, Liu Y, Lei D, Li J, Dou X. Amination and Protonation Facilitated Novel Isoxazole Derivative for Highly Efficient Electron and Hole Separation. J Phys Chem A 2024. [PMID: 38656182 DOI: 10.1021/acs.jpca.4c01324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
It is of great importance to understand the intrinsic relationship between phototautomerization and photoelectric properties for the exploration of novel organic materials. Here, in order to chemically control the protonation process, the aminated isoxazole derivative (2,2'-(isoxazolo[5,4-d]isoxazole-3,6-diyl)dibenzenaminium, DP-DA-DPIxz) with -N═ as the proton acceptor was designed to achieve the twisted intramolecular charge transfer (TICT) state which was triggered by an excited-state intramolecular proton transfer (ESIPT) process. This kind of protonation enhanced the intramolecular hydrogen bonding, conjugative effect, and steric hindrance effects, ensuring a barrierless spontaneous TICT process. Through the intramolecular proton transfer, the configuration torsion and conjugation dissociation of the DP-DA-DPIxz molecule was favored, which led to efficient charge separation and remarkable variations in light-emitting properties. We hope the present investigation will provide a new approach to design novel optoelectronic organic materials and shine light on the understanding of the charge transfer and separation process in molecular science.
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Affiliation(s)
- Gaosheng Li
- School of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang 830046, China
| | - Yali Liu
- Xinjiang Key Laboratory of Trace Chemical Substances Sensing, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China
| | - Da Lei
- Xinjiang Key Laboratory of Trace Chemical Substances Sensing, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China
| | - Jiguang Li
- Xinjiang Key Laboratory of Trace Chemical Substances Sensing, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China
| | - Xincun Dou
- School of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang 830046, China
- Xinjiang Key Laboratory of Trace Chemical Substances Sensing, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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2
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Nair S, Bysewski OA, Klosterhalfen N, Sittig M, Winter A, Schubert US, Dietzek-Ivanšić B. Intramolecular Energy Transfer Competing with Light-Driven Intermolecular Proton Transfer in an Iron(II)-NHC Complex? A Query into the Role of Photobasic Ligands and MLCT States. ACS OMEGA 2024; 9:13427-13439. [PMID: 38524456 PMCID: PMC10955593 DOI: 10.1021/acsomega.3c06196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/15/2023] [Accepted: 11/20/2023] [Indexed: 03/26/2024]
Abstract
Inorganic photoacids and photobases comprising of photoactive transition metal complexes (TMCs) offer the ability to modulate proton transfer reactions through light irradiation, while utilizing the excellent optical properties of the latter. This provides a powerful tool for precise control over chemical reactions and processes, with implications for both fundamental science and practical applications. In this contribution, we present a novel molecular architecture amending an Fe-NHC complex with a pendant quinoline, as a prototypical photobase, as a representative earth-abundant TMC based inorganic photobase. We characterize the excited-state properties and proton-transfer dynamics using steady-state absorption and emission spectroscopy as well as pump wavelength dependent transient absorption spectroscopy in various protic solvents. The kinetics and thermodynamics of proton transfer in the quinoline moiety are influenced by both the presence of the metal center and the choice of the solvent. Furthermore, we see indications of intramolecular energy transfer from the quinoline to the MLCT state as a limiting factor for panchromatic photobasicity of the complex.
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Affiliation(s)
- Shruthi
S. Nair
- Department
Functional Interfaces, Leibniz Institute
of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Strasse 9, 07745 Jena, Germany
- Institute
of Physical Chemistry, Friedrich-Schiller
University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Oliver A. Bysewski
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Center for
Energy and Environmental Chemistry Jena (CEEC Jena), Friedrich Schiller University Jena, Philosophenweg 7a, Jena 07743, Germany
| | - Niklas Klosterhalfen
- Department
Functional Interfaces, Leibniz Institute
of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Strasse 9, 07745 Jena, Germany
- Institute
of Physical Chemistry, Friedrich-Schiller
University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Maria Sittig
- Department
Functional Interfaces, Leibniz Institute
of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Strasse 9, 07745 Jena, Germany
- Institute
of Physical Chemistry, Friedrich-Schiller
University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Andreas Winter
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Center for
Energy and Environmental Chemistry Jena (CEEC Jena), Friedrich Schiller University Jena, Philosophenweg 7a, Jena 07743, Germany
| | - Ulrich S. Schubert
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Center for
Energy and Environmental Chemistry Jena (CEEC Jena), Friedrich Schiller University Jena, Philosophenweg 7a, Jena 07743, Germany
| | - Benjamin Dietzek-Ivanšić
- Department
Functional Interfaces, Leibniz Institute
of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Strasse 9, 07745 Jena, Germany
- Institute
of Physical Chemistry, Friedrich-Schiller
University Jena, Helmholtzweg 4, 07743 Jena, Germany
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3
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Yan F, Lei D, Li J, Duan H, Dou X. A Deep Understanding on the Effective Generation of Twisted Intramolecular Charge Transfer by Protonation in Thiazolo[5,4- d]thiazole Derivatives. J Phys Chem A 2023; 127:902-912. [PMID: 36669096 DOI: 10.1021/acs.jpca.2c07349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The exploration of the intrinsic relationship between the phototautomerization and photoelectric properties is of great significance for the application of the emerging novel organic materials, such as the (bi)heterocyclic thiazolo[5,4-d]thiazole derivatives (TzTz). Here, by introducing the chemical-controlling protonation, a barrierless spontaneous rotation movement of the designed TzTz derivative (2,5-diyl-amino-thiazolo[5,4-d]thiazole, DA-TzTz) was ensured through the facilitation of the excited-state intramolecular proton transfer (ESIPT) triggered twisted intramolecular charge transfer (TICT) process by the enhancement of the intramolecular hydrogen bonds, steric hindrance effect, and conjugative effect. It is further verified that the hetero S atoms could mostly effect the proton accepting ability of -N═ through comparing with the influences to the intramolecular H-bond between the protonated/nonprotonated amino groups and the -N═ atoms brought by the replacement of them with N or O atoms. As a result, the dissociation and rearrangement of the π conjugation in DA-TzTz accompanying with the variation of the optoelectronic characteristics was benefited from the establishment of the preferential charge-transfer and separation. We expect this tentative study could establish a new concept of designing an efficient charge-transfer and separation method, paving the way for the development of the TzTz derivatives and other optoelectronic organic materials.
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Affiliation(s)
- Fei Yan
- School of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang830046, China
| | - Da Lei
- Xinjiang Key Laboratory of Explosives Safety Science, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi830011, China
| | - Jiguang Li
- Xinjiang Key Laboratory of Explosives Safety Science, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi830011, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing100049, China
| | - Haiming Duan
- School of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang830046, China
| | - Xincun Dou
- School of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang830046, China.,Xinjiang Key Laboratory of Explosives Safety Science, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi830011, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing100049, China
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4
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Marlton SJP, Trevitt A. Laser Photodissocation, Action Spectroscopy and Mass Spectrometry Unite to Detect and Separate Isomers. Chem Commun (Camb) 2022; 58:9451-9467. [DOI: 10.1039/d2cc02101c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The separation and detection of isomers remains a challenge for many areas of mass spectrometry. This article highlights laser photodissociation and ion mobility strategies that have been deployed to tackle...
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5
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Marlton SJP, McKinnon BI, Greißel P, Shiels OJ, Ucur B, Trevitt AJ. Picosecond excited-state lifetimes of protonated indazole and benzimidazole: The role of the N-N bond. J Chem Phys 2021; 155:184302. [PMID: 34773941 DOI: 10.1063/5.0071847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Certain chemical groups give rise to characteristic excited-state deactivation mechanisms. Here, we target the role of a protonated N-N chemical group in the excited-state deactivation of protonated indazole by comparison to its isomer that lacks this group, protonated benzimidazole. Gas-phase protonated indazole and protonated benzimidazole ions are investigated at room temperature using picosecond laser pump-probe photodissociation experiments in a linear ion-trap. Excited state lifetimes are measured across a range of pump energies (4.0-5.4 eV). The 1ππ* lifetimes of protonated indazole range from 390 ± 70 ps using 4.0 eV pump energy to ≤18 ps using 4.6 eV pump energy. The 1ππ* lifetimes of protonated benzimidazole are systematically longer, ranging from 3700 ± 1100 ps at 4.6 eV pump energy to 400 ± 200 ps at 5.4 eV. Based on these experimental results and accompanying quantum chemical calculations and potential energy surfaces, the shorter lifetimes of protonated indazole are attributed to πσ* state mediated elongation of the protonated N-N bond.
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Affiliation(s)
- Samuel J P Marlton
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Benjamin I McKinnon
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Phillip Greißel
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Oisin J Shiels
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Boris Ucur
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Adam J Trevitt
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, New South Wales 2522, Australia
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6
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The effect of protonation on the excited state dynamics of pyrimidine chromophores. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112398] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Soorkia S, Jouvet C, Grégoire G. UV Photoinduced Dynamics of Conformer-Resolved Aromatic Peptides. Chem Rev 2019; 120:3296-3327. [DOI: 10.1021/acs.chemrev.9b00316] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Satchin Soorkia
- Institut des Sciences Moléculaires d’Orsay (ISMO), CNRS, Univ. Paris-Sud, Université Paris-Saclay, F-91405 Orsay, France
| | - Christophe Jouvet
- CNRS, Aix Marseille Université, PIIM UMR 7345, 13397, Marseille, France
| | - Gilles Grégoire
- Institut des Sciences Moléculaires d’Orsay (ISMO), CNRS, Univ. Paris-Sud, Université Paris-Saclay, F-91405 Orsay, France
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8
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Ben Nasr F, Alata I, Scuderi D, Lepère V, Brenner V, Jaïdane NE, Zehnacker A. Effects of complexation with sulfuric acid on the photodissociation of protonated Cinchona alkaloids in the gas phase. Phys Chem Chem Phys 2019; 21:15439-15451. [PMID: 31257399 DOI: 10.1039/c9cp01518c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of complexation with sulfuric acid on the photo-dissociation of protonated Cinchona alkaloids, namely cinchonidine (Cd), quinine (Qn) and quinidine (Qd), is studied by combining laser spectroscopy with quantum chemical calculations. The protonated complexes are structurally characterized in a room-temperature ion trap by means of infra-red multiple photon dissociation (IRMPD) spectroscopy in the fingerprint and the ν(XH) (X = C, N, O) stretch regions. Comparison with density functional theory calculations including dispersion (DFT-D) unambiguously shows that the complex consists of a doubly protonated Cinchona alkaloid strongly bound to a bisulfate HSO4- anion, which bridges the two protonated sites of the Cinchona alkaloid. UV excitation of the complex does not induce loss of specific photo fragments, in contrast to the protonated monomer or dimer, for which photo-specific fragments were observed. Indeed the UV-induced fragmentation pattern is identical to that observed in collision-induced dissociation experiments. Analysis of the nature of the first electronic transitions at the second order approximate coupled-cluster level (CC2) explains the difference in the behavior of the complex relative to the monomer or dimer towards UV excitation.
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Affiliation(s)
- Feriel Ben Nasr
- Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS, Univ. Paris-Sud, Université Paris-Saclay, F-91405 Orsay, France. and Laboratoire de Spectroscopie Atomique, Moléculaire et Applications (LSAMA) Université de Tunis El Manar, LSAMA, Tunis 1060, Tunisia
| | - Ivan Alata
- Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS, Univ. Paris-Sud, Université Paris-Saclay, F-91405 Orsay, France.
| | - Debora Scuderi
- Univ. Paris-Sud, Laboratoire de Chimie Physique, UMR 8000, and CNRS, Orsay, F-91405, France
| | - Valeria Lepère
- Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS, Univ. Paris-Sud, Université Paris-Saclay, F-91405 Orsay, France.
| | | | - Nejm-Eddine Jaïdane
- Laboratoire de Spectroscopie Atomique, Moléculaire et Applications (LSAMA) Université de Tunis El Manar, LSAMA, Tunis 1060, Tunisia
| | - Anne Zehnacker
- Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS, Univ. Paris-Sud, Université Paris-Saclay, F-91405 Orsay, France.
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9
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Salehi M, Heidari Z, Omidyan R. Photophysics of Protonated and Microhydrated 2-Aminobenzaldehyde: Theoretical Insights into Photoswitchability of Protonated Systems. J Phys Chem A 2018; 122:8849-8857. [PMID: 30365896 DOI: 10.1021/acs.jpca.8b09930] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The photoswitchability of a protonated aromatic compound (2-aminobenzaldehyde, 2ABZH+) in its individual and microhydrated states has been addressed based on the RI-MP2/RI-CC2 theoretical methods. Our calculated results give insight into the ultrafast nonradiative deactivation mechanism of the 2ABZH+, driven by a conical intersection between the S1/ S0 potential energy surfaces. Also, it has been predicted that protonation accompanies a significant blue shift effect on the first 1ππ* excited state of 2ABZ by 0.87 eV (at least 50 nm).
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Affiliation(s)
- Mohammad Salehi
- Department of Chemistry , University of Isfahan , 81746-73441 , Isfahan , Iran
| | - Zahra Heidari
- Department of Chemistry , University of Isfahan , 81746-73441 , Isfahan , Iran
| | - Reza Omidyan
- Department of Chemistry , University of Isfahan , 81746-73441 , Isfahan , Iran
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10
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Nandi A, Kushwaha A, Das D, Ghosh R. Protonation-induced ultrafast torsional dynamics in 9-anthrylbenzimidazole: a pH activated molecular rotor. Phys Chem Chem Phys 2018; 20:7014-7020. [DOI: 10.1039/c7cp08408k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Protonation activated molecular rotor property is demonstrated in 9-anthrylbenzimidazole which probes a wide range of viscosity selectively at acidic pH (pH < 5).
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Affiliation(s)
- Amitabha Nandi
- Radiation and Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400085
- India
| | - Archana Kushwaha
- Department of Chemistry
- Institute of Chemical Technology
- Nathalal Parekh Marg
- Mumbai 400019
- India
| | - Dipanwita Das
- Department of Chemistry
- Institute of Chemical Technology
- Nathalal Parekh Marg
- Mumbai 400019
- India
| | - Rajib Ghosh
- Radiation and Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400085
- India
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11
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Noble JA, Broquier M, Grégoire G, Soorkia S, Pino G, Marceca E, Dedonder-Lardeux C, Jouvet C. Tautomerism and electronic spectroscopy of protonated 1- and 2-aminonaphthalene. Phys Chem Chem Phys 2018; 20:6134-6145. [DOI: 10.1039/c8cp00218e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Protonation sites can be controlled by the electrospray source as written in the figure.
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Affiliation(s)
- Jennifer A. Noble
- CNRS
- Aix Marseille Université
- Physique des Interactions Ioniques et Moléculaires
- UMR 7345
- Marseille
| | - Michel Broquier
- CNRS
- Univ. Paris-Sud
- Université Paris-Saclay
- Institut des Sciences Moléculaires d’Orsay (ISMO)
- F-91405 Orsay
| | - Gilles Grégoire
- CNRS
- Univ. Paris-Sud
- Université Paris-Saclay
- Institut des Sciences Moléculaires d’Orsay (ISMO)
- F-91405 Orsay
| | - Satchin Soorkia
- CNRS
- Univ. Paris-Sud
- Université Paris-Saclay
- Institut des Sciences Moléculaires d’Orsay (ISMO)
- F-91405 Orsay
| | - Gustavo Pino
- INFIQC (CONICET – Universidad Nacional de Cordoba)
- Ciudad Universitaria
- X5000HUA Cordoba
- Argentina
- Dpto. de Fisicoquimica
| | - Ernesto Marceca
- INQUIMAE (CONICET – Universidad de Buenos Aires)
- DQIAQF – Facultad de Ciencias Exactas y Naturales
- Universidad de Buenos Aires
- 1428 Buenos Aires
- Argentina
| | - Claude Dedonder-Lardeux
- CNRS
- Aix Marseille Université
- Physique des Interactions Ioniques et Moléculaires
- UMR 7345
- Marseille
| | - Christophe Jouvet
- CNRS
- Aix Marseille Université
- Physique des Interactions Ioniques et Moléculaires
- UMR 7345
- Marseille
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12
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Matwijczuk A, Górecki A, Makowski M, Pustuła K, Skrzypek A, Waś J, Niewiadomy A, Gagoś M. Spectroscopic and Theoretical Studies of Fluorescence Effects in 2-Methylamino-5-(2,4-dihydroxyphenyl)-1,3,4-thiadiazole Induced by Molecular Aggregation. J Fluoresc 2017; 28:65-77. [PMID: 28889356 PMCID: PMC5799588 DOI: 10.1007/s10895-017-2175-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 08/30/2017] [Indexed: 01/12/2023]
Abstract
The article presents the results of fluorescence analyses of 2-methylamino-5-(2,4-dihydroxyphenyl)-1,3,4-thiadiazole (MDFT) in an aqueous environment. MDFT dissolved in aqueous solutions with a pH value in the range from 1 to 4.5 yielded an interesting effect of two clearly separated fluorescence emissions. In turn, a single fluorescence was observed in MDFT dissolved in water solutions with a pH value from 4.5 to 12. As it was suggested in the previous investigations of other 1,3,4-thiadiazole compounds, these effects may be associated with conformational changes in the structure of the analysed molecule accompanied by aggregation effects. Crystallographic data showed that the effect of the two separated fluorescence emissions occurred in a conformation with the –OH group in the resorcyl ring bound on the side of the sulphur atom from the 1,3,4-thiadiazole ring. The hypothesis of aggregation as the mechanism involved in the change in the spectral properties at low pH is supported by the results of (Time-Dependent) Density Functional Theory calculations. The possibility of rapid analysis of conformational changes with the fluorescence spectroscopy technique may be rather important outcome obtained from the spectroscopic studies presented in this article. Additionally, the presented results seem to be highly important as they can be easily observed in solutions and biologically important samples.
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Affiliation(s)
- Arkadiusz Matwijczuk
- Department of Biophysics, University of Life Sciences in Lublin, Akademicka 13, 20-950, Lublin, Poland.
| | - Andrzej Górecki
- Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Krakow, Poland
| | - Marcin Makowski
- Department of Theoretical Chemistry, Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060, Kraków, Poland
| | - Katarzyna Pustuła
- Department of Theoretical Chemistry, Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060, Kraków, Poland
| | - Alicja Skrzypek
- Department of Chemistry, University of Life Sciences in Lublin, Akademicka 15, 20-950, Lublin, Poland
| | - Joanna Waś
- Departament of Chemistry, Jagiellonian University, Ingardena 3, 30-060, Kraków, Poland
| | - Andrzej Niewiadomy
- Department of Chemistry, University of Life Sciences in Lublin, Akademicka 15, 20-950, Lublin, Poland.,Institute of Industrial Organic Chemistry, Annopol 6, 03-236, Warsaw, Poland
| | - Mariusz Gagoś
- Department of Cell Biology, Institute of Biology, Maria Curie-Skłodowska University, Akademicka 19, 20-033, Lublin, Poland.
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13
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Excited State Dynamics of Cold Protonated Cytosine Tautomers: Characterization of Charge Transfer, Intersystem Crossing, and Internal Conversion Processes. J Phys Chem A 2017; 121:6429-6439. [DOI: 10.1021/acs.jpca.7b06423] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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14
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Garcia RL, Nieuwjaer N, Desfrançois C, Lecomte F, Leite SD, Manil B, Broquier M, Grégoire G. Vibronic spectra of protonated hydroxypyridines: contributions of prefulvenic and planar structures. Phys Chem Chem Phys 2017; 19:8258-8268. [DOI: 10.1039/c6cp08623c] [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]
Abstract
The UV photofragmentation spectra of cold protonated hydroxypyridines display well resolved vibrational structures, interpreted with calculations at the CC2 level.
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Affiliation(s)
- R. Lozada Garcia
- Laboratoire de Physique des Lasers
- CNRS
- Université Paris 13
- Sorbonne Paris Cité
- France
| | - N. Nieuwjaer
- Laboratoire de Physique des Lasers
- CNRS
- Université Paris 13
- Sorbonne Paris Cité
- France
| | - C. Desfrançois
- Laboratoire de Physique des Lasers
- CNRS
- Université Paris 13
- Sorbonne Paris Cité
- France
| | - F. Lecomte
- Laboratoire de Physique des Lasers
- CNRS
- Université Paris 13
- Sorbonne Paris Cité
- France
| | - S. D. Leite
- Laboratoire de Physique des Lasers
- CNRS
- Université Paris 13
- Sorbonne Paris Cité
- France
| | - B. Manil
- Laboratoire de Physique des Lasers
- CNRS
- Université Paris 13
- Sorbonne Paris Cité
- France
| | - M. Broquier
- Institut des Sciences Moléculaires d'Orsay (ISMO)
- CNRS
- Univ. Paris Sud
- Université Paris-Saclay
- F-91405 Orsay
| | - G. Grégoire
- Institut des Sciences Moléculaires d'Orsay (ISMO)
- CNRS
- Univ. Paris Sud
- Université Paris-Saclay
- F-91405 Orsay
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15
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Soorkia S, Broquier M, Grégoire G. Multiscale excited state lifetimes of protonated dimethyl aminopyridines. Phys Chem Chem Phys 2016; 18:23785-94. [DOI: 10.1039/c6cp04050k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photodynamics of protonated ortho and para dimethylaminopyridine molecules has been investigated over 9 orders of magnitude through time-resolved two-color photofragmentation spectroscopy.
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Affiliation(s)
- Satchin Soorkia
- Institut des Sciences Moléculaires d'Orsay (ISMO)
- CNRS
- Univ. Paris Sud
- Université Paris-Saclay
- F-91405 Orsay
| | - Michel Broquier
- Institut des Sciences Moléculaires d'Orsay (ISMO)
- CNRS
- Univ. Paris Sud
- Université Paris-Saclay
- F-91405 Orsay
| | - Gilles Grégoire
- Institut des Sciences Moléculaires d'Orsay (ISMO)
- CNRS
- Univ. Paris Sud
- Université Paris-Saclay
- F-91405 Orsay
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