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Drouillard NG, Hammond TJ. Measurement of dispersion and index of refraction of 1-decanol with spectrally resolved white light interferometry. OPTICS EXPRESS 2022; 30:39407-39416. [PMID: 36298894 DOI: 10.1364/oe.473178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 09/19/2022] [Indexed: 06/16/2023]
Abstract
The high density, high nonlinearity, and stability of liquids make them an attractive medium for spectral broadening and supercontinuum generation in ultrafast experiments. To understand ultrashort pulse propagation in these media, their indices of refraction and dispersions must be characterized. We employ a Mach-Zehnder interferometer to generate a series of interferograms, which we refer to as a spectrogram, to develop a new method of using spectrally resolved white light interferometry to determine the refractive indices of materials. We determine the indices of refraction of BK7, sapphire, ethanol, and 1-decanol at 24°C across the visible and near infrared. To our knowledge, this is the first reported dispersion and index of refraction measurement of 1-decanol.
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Dutta S, Basu N, Mandal D. ESIPT in a Binary Mixture of Non-Polar and Protic Polar Solvents : Role of Solvation Dynamics. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114240] [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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3
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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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Das K, Sappati S, Bisht GS, Hazra P. Proton-Coupled Electron Transfer in the Aqueous Nanochannels of Lyotropic Liquid Crystals: Interplay of H-Bonding and Polarity Effects. J Phys Chem Lett 2021; 12:2651-2659. [PMID: 33689368 DOI: 10.1021/acs.jpclett.1c00207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A molecular-level description of the aqueous nanochannels in lyotropic liquid crystals (LLCs) is crucial for their widespread utilization in diverse fields. Herein, the polarity and hydrogen bonding effects of LLC water molecules have been simultaneously explored using a single probe, 4'-N,N-dimethylamino-3-hydroxyflavone (DMA3HF), by the unique multiparametric sensitivity of the excited state proton-coupled electron transfer (PCET) phenomenon. The decreased ESIPT efficiency and the significantly retarded ESIPT dynamics (>20 times) of DMA3HF in the LLC phases suggests the dominant influence of strong hydrogen-bonded solute-solvent complexes that leads to a high activation barrier for ESIPT in the mesophases. The effects of hydrogen bonding on ESIPT have been elucidated by enhanced sampling techniques based on classical MD simulations of DMA3HF in explicit water. ESIPT via an extended hydrogen-bonded water wire is associated with a significantly high ESIPT activation barrier, substantiating the experimentally observed slow ESIPT dynamics inside the LLCs.
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Affiliation(s)
- Konoya Das
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
| | | | - Girish Singh Bisht
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
| | - Partha Hazra
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
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Karmakar A, Mallick T, Fouzder C, Mukhuty A, Mondal S, Pramanik A, Kundu R, Mandal D, Begum NA. Unfolding the Role of a Flavone-Based Fluorescent Antioxidant towards the Misfolding of Amyloid Proteins: An Endeavour to Probe Amyloid Aggregation. J Phys Chem B 2020; 124:11133-11144. [DOI: 10.1021/acs.jpcb.0c08729] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Abhijit Karmakar
- Department of Chemistry, Visva-Bharati (Central University), Santiniketan 731235, WB, India
| | - Tamanna Mallick
- Department of Chemistry, Visva-Bharati (Central University), Santiniketan 731235, WB, India
| | - Chandrani Fouzder
- Department of Zoology, Visva-Bharati (Central University), Santiniketan 731235, WB, India
| | - Alpana Mukhuty
- Department of Zoology, Visva-Bharati (Central University), Santiniketan 731235, WB, India
| | - Samiran Mondal
- Department of Chemistry, Rammohan College, Kolkata 700009, WB, India
| | - Anup Pramanik
- Department of Chemistry, Sidho-Kanho-Birsha University, Purulia 723104, WB, India
| | - Rakesh Kundu
- Department of Zoology, Visva-Bharati (Central University), Santiniketan 731235, WB, India
| | - Debabrata Mandal
- Department of Chemistry, University College of Science and Technology, University of Calcutta, 92, Acharya Prafulla Chandra Road, Kolkata 700009, WB, India
| | - Naznin Ara Begum
- Department of Chemistry, Visva-Bharati (Central University), Santiniketan 731235, WB, India
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6
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Mońka M, Kubicki A, Bojarski P, Serdiuk IE. Not only AIE: Light-sensitivity of 4-dimethylamino-2′-hydroxychalcones beneficial to highly efficient photochemical synthesis of 4′-dimethylaminoflavanones. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113526] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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7
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4’-Methoxy-3-hydroxyflavone excited state intramolecular proton transfer reaction in alcoholic solutions: Intermolecular versus intramolecular hydrogen bonding effect. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.111964] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Antioxidant flavone functionalized fluorescent and biocompatible metal nanoparticles: Exploring their efficacy as cell imaging agents. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.nanoso.2019.100278] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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9
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Hessz D, Bojtár M, Mester D, Szakács Z, Bitter I, Kállay M, Kubinyi M. Hydrogen bonding effects on the fluorescence properties of 4'-diethylamino-3-hydroxyflavone in water and water-acetone mixtures. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 203:96-105. [PMID: 29860173 DOI: 10.1016/j.saa.2018.05.104] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 05/21/2018] [Accepted: 05/27/2018] [Indexed: 06/08/2023]
Abstract
The fluorescence properties of 4'-diethylamino-3-hydroxyflavone (FET), a dye probe sensitive to the polarity as well as the hydrogen bonding ability of its environment, have been studied in acetone-water mixtures by measuring spectra and decay curves over the whole composition range and analyzing the results on the basis of theoretical calculations. In acetone, like in most of organic solvents, the dye showed dual fluorescence, due to an excited state intramolecular proton transfer (ESIPT), in which a quasi-equilibrium between the two excited species, N* and T*, was reached. In acetone-water mixtures with lower molar fractions of water, where the water molecules are largely dispersed, only one type of hydrate could be detected, a complex with 1:1 composition, showing only N* emission, but with a high (0.45) fluorescence quantum yield. At higher water concentrations, the interaction of FET with the hydrogen-bonded water clusters resulted in fluorescence quenching. In neat water the fluorescence quantum yield fell to ~0.001. Theoretical calculations on a FET-acetone complex, a FET-water complex and a FET-water-acetone triple complex (the latter as model for the samples with low water concentrations) concluded that ESIPT was energetically favored in all the models, but the E(N*)-E(T*) energy difference for the water complexes was much lower. The kinetic barrier of ESIPT was found greatly higher in the FET-water complex than in the isolated solute. The intermolecular hydrogen bonds in the water complexes became significantly stronger following the excitation, stabilizing the N* form of the hydrated dye.
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Affiliation(s)
- Dóra Hessz
- Institute of Materials and Environmental Chemistry, Research Center for Natural Sciences, Hungarian Academy of Sciences, 1519 Budapest, P.O. Box 286, Hungary
| | - Márton Bojtár
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, 1521 Budapest, Hungary
| | - Dávid Mester
- MTA-BME Lendület Quantum Chemistry Research Group, Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, 1521 Budapest, Hungary
| | - Zoltán Szakács
- Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, 1521 Budapest, Hungary
| | - István Bitter
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, 1521 Budapest, Hungary
| | - Mihály Kállay
- MTA-BME Lendület Quantum Chemistry Research Group, Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, 1521 Budapest, Hungary
| | - Miklós Kubinyi
- Institute of Materials and Environmental Chemistry, Research Center for Natural Sciences, Hungarian Academy of Sciences, 1519 Budapest, P.O. Box 286, Hungary; Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, 1521 Budapest, Hungary.
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Karmakar A, Mallick T, Alam MN, Das S, Batuta S, Chandra SK, Mandal D, Begum NA. Understanding of the interactions of ctDNA with an antioxidant flavone analog: Exploring the utility of the small molecule as fluorescent probe for biomacromolecule. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.03.113] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Peng Y, Ye Y, Xiu X, Sun S. Mechanism of Excited-State Intramolecular Proton Transfer for 1,2-Dihydroxyanthraquinone: Effect of Water on the ESIPT. J Phys Chem A 2017; 121:5625-5634. [DOI: 10.1021/acs.jpca.7b03877] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yajing Peng
- Department
of Physics, Bohai University, JinZhou 121013, China
- State
Key Laboratory of Molecular Reaction Dynamics Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yuqing Ye
- Department
of Physics, Bohai University, JinZhou 121013, China
| | - Xianming Xiu
- Department
of Physics, Bohai University, JinZhou 121013, China
| | - Shuang Sun
- Department
of Physics, Bohai University, JinZhou 121013, China
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Ghosh D, Ahamed G, Batuta S, Begum NA, Mandal D. 3′,4′-methylenedioxy-3-hydroxyflavone: switchover from reversible to irreversible ESIPT along the n-alcohol series. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2016.05.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Serdiuk IE, Roshal AD, Błażejowski J. Origin of Spectral Features and Acid–Base Properties of 3,7-Dihydroxyflavone and Its Monofunctional Derivatives in the Ground and Excited States. J Phys Chem A 2016; 120:4325-37. [DOI: 10.1021/acs.jpca.6b03290] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Illia E. Serdiuk
- Department of Chemistry, University of Gdańsk, 80-308 Gdańsk, Poland
- Institute of Chemistry, V. N. Karazin Kharkiv National University, 61022 Kharkiv, Ukraine
| | - Alexander D. Roshal
- Institute of Chemistry, V. N. Karazin Kharkiv National University, 61022 Kharkiv, Ukraine
| | - Jerzy Błażejowski
- Department of Chemistry, University of Gdańsk, 80-308 Gdańsk, Poland
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