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Mádi L, Kučera J, Káňa Š, Bržezická T, Táborský P. Reducing the water quenching processes using heavy water in capillary electrophoresis with fluorescence detection. J Chromatogr A 2024; 1736:465411. [PMID: 39368194 DOI: 10.1016/j.chroma.2024.465411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2024] [Revised: 09/26/2024] [Accepted: 09/29/2024] [Indexed: 10/07/2024]
Abstract
Water, ubiquitous in analytical methods, is renowned for its fluorescence quenching properties, influencing techniques like fluorescence spectrophotometry or techniques with fluorescence detection. This study explores the impact of water (H₂O) substitution for heavy water (D₂O) on the fluorescence behavior of anthraquinones and anthracyclines. Anthraquinones and anthracyclines play crucial roles in pharmacy, serving as essential components in various therapeutic formulations, particularly in cancer treatment and other pharmacological interventions. Capillary electrophoresis (CE) with heavy water as the background electrolyte (BGE) solvent offers superior sensitivity to the separation and detection of these analytes. Experimental results demonstrate the improved detection limits and separation efficiency of selected anthraquinones rhein (RH), aloe-emodin (AE), and anthracyclines doxorubicin (DOX), epirubicin (EPI) and daunorubicine (DAU) in heavy water-based buffers, highlighting the potential of heavy water in advancing analytical chemistry.
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Affiliation(s)
- Lenka Mádi
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 753/5, 62500 Brno, Czech Republic
| | - Josef Kučera
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 753/5, 62500 Brno, Czech Republic
| | - Štěpán Káňa
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 753/5, 62500 Brno, Czech Republic
| | - Taťána Bržezická
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 753/5, 62500 Brno, Czech Republic
| | - Petr Táborský
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 753/5, 62500 Brno, Czech Republic.
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2
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Chen P, Niu Z, Wang E. Bright ESIPT emission from 2,6-di(thiazol/oxazol/imidazol-2-yl)phenol derivatives in solution, aggregation and solid states. Methods Appl Fluoresc 2024; 12:035009. [PMID: 38838704 DOI: 10.1088/2050-6120/ad5490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 06/05/2024] [Indexed: 06/07/2024]
Abstract
Most luminophores often suffer from the problem of aggregation-caused quenching (ACQ) or fluorescence disappearance in dilute solution. It is significant to bridge the gap between ACQ and AIE. In this work, a facile but effective strategy was proposed for the fabrication of always-on luminophores based on the excited state intramolecular proton transfer (ESIPT) mechanism, and six luminophores emitting bright fluorescence in solution, aggregation and solid states were synthesized from 5-tert-butyl-2-hydroxyisophthalaldehyde. All these ESIPT systems show only keto emission owing to their congested structures which block the breakage of intramolecular hydrogen bond (O-H⋯N) by solvation, and subsequently make enol emission impossible. Three of these luminophores are prone to convert into the corresponding phenolate anions emitting blue-shifted emission, which enable them to sense pH variation in the weakly basic range. Furthermore, white-light emission was achieved by combining two of them which show complementary-color fluorescence, and one of them was utilized for bioimaging of living Hela cells and the high-resolution image was obtained.
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Affiliation(s)
- Panpan Chen
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry & Chemical Engineering, Hainan Normal University, Haikou, 571158, People's Republic of China
| | - Zhigang Niu
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry & Chemical Engineering, Hainan Normal University, Haikou, 571158, People's Republic of China
| | - Eenju Wang
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry & Chemical Engineering, Hainan Normal University, Haikou, 571158, People's Republic of China
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3
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Fontes LFB, Rocha J, Silva AMS, Guieu S. Excited-State Proton Transfer in Luminescent Dyes: From Theoretical Insight to Experimental Evidence. Chemistry 2023; 29:e202301540. [PMID: 37450664 DOI: 10.1002/chem.202301540] [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: 05/16/2023] [Revised: 07/07/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
The effective utilization of luminescent dyes often relies on a comprehensive understanding of their excitation and relaxation pathways. One such pathway, Excited-State Proton Transfer (ESPT), involves the tautomerization of the dye in its excited state, resulting in a new structure that exhibits distinct emission properties, such as a very large Stokes' shift or dual-emission. Although the ESPT phenomenon is well-explained theoretically, its experimental demonstration can be challenging due to the presence of numerous other phenomena that can yield similar experimental observations. In this review, we propose that an all-encompassing methodology, integrating experimental findings, computational analyses, and a thorough evaluation of diverse mechanisms, is essential for verifying the occurrence of ESPT in luminescent dyes. Investigations have offered significant understanding of the elements impacting the ESPT process and the array of approaches that can be used to validate the existence of ESPT. These discoveries hold crucial ramifications for the advancement of molecular probes, sensors, and other applications that depend on ESPT as a detection mechanism.
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Affiliation(s)
- Luís F B Fontes
- LAQV-REQUIMTE & Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
- CICECO-Aveiro Institute of Materials & Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - João Rocha
- CICECO-Aveiro Institute of Materials & Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Artur M S Silva
- LAQV-REQUIMTE & Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Samuel Guieu
- LAQV-REQUIMTE & Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
- CICECO-Aveiro Institute of Materials & Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
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Zadeh SS, Ebrahimi A, Shahraki A. The impact of π-π stacking interactions on photo-physical properties of hydroxyanthraquinones. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 292:122453. [PMID: 36753863 DOI: 10.1016/j.saa.2023.122453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 01/25/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
The impact of π-π stacking interactions on photo-physical properties of hydroxyanthraquinone (HA) has been investigated using the density functional (DFT) and time-dependent density functional theory (TD-DFT) calculations in the gas phase and solution media. The vertical transition is characterized with strong HOMO-LUMO transition in the complexes. The intramolecular hydrogen bond (IHB) made in the HA and π-π complexes is strengthened after S0 → S1 excitation, such that the proton transfers is facilitated in the first excited state. The complexes exhibit an exothermic excited state intramolecular proton transfer (ESIPT) in the solution media, which is a barrierless process for some complexes. The π-π stacking interaction affects the absorption and emission bands of HA, and provides a large Stokes shift. This indicates the desirable fluorescence properties of π-π complexes, which are cross-validated by geometries, potential energy curve scannings, electronic and vibrational spectra, and frontier molecular orbital analyses.
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Affiliation(s)
- Samira Sedighi Zadeh
- Department of Chemistry, Computational Quantum Chemistry Laboratory, University of Sistan and Baluchestan, P.O. XZBox 98135-674, Zahedan, Iran
| | - Ali Ebrahimi
- Department of Chemistry, Computational Quantum Chemistry Laboratory, University of Sistan and Baluchestan, P.O. XZBox 98135-674, Zahedan, Iran.
| | - Asiyeh Shahraki
- Department of Chemistry, Computational Quantum Chemistry Laboratory, University of Sistan and Baluchestan, P.O. XZBox 98135-674, Zahedan, Iran
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Cai H, Lu H, Liu B, Sun C, Zhao X, Zhao D. Regulating the photophysical properties of ESIPT-based fluorescent probes by functional group substitution: a DFT/TDDFT study. J Mol Model 2023; 29:126. [PMID: 37016199 DOI: 10.1007/s00894-023-05541-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 03/30/2023] [Indexed: 04/06/2023]
Abstract
CONTEXT In recent years, fluorescent probe technology has received more and more attention. However, the photophysical and photochemical properties of probe molecules still need to be further explored. This paper presents the excited state intramolecular proton transfer (ESIPT) processes and photophysical properties of the probe molecule 4-bromo-2-((E)-((Z)-((5-bromo-1H-indol-2-yl) methylene) hydrazono) methyl) phenol (BHPL) and its four derivatives (BHPL2, BHPL3, BHPL4, and BHPL5). Infrared spectra and geometric structure analyses revealed that introducing the -NH2 group on the benzene ring with the hydroxyl group will enhance the intramolecular hydrogen bond, which benefits the ESIPT process. Combining their absorption and fluorescence spectra, it can be concluded that BHPL2 and BHPL4 are both excellent probe candidates due to their large Stokes shift. The hole and electron and root mean square displacement analyses manifest that the fluorescence quenching of BHPL4 may be due to the intramolecular charge transfer process. Potential energy curves of BHPL and its four derivatives noted that ESIPT process of the BHPL2 is the most favorable to occur. The frontier molecular orbital and NBO analyses indicated that besides introducing electron-donating groups to reduce the energy gap and enhance fluorescence emission, introducing double electron-withdrawing groups can also achieve this effect, explaining why the energy barrier of ESIPT process for BHPL2 is lower than BHPL5. This work would provide the theoretical basis for designing novel fluorescence probes with more prominent properties. METHODS The ground (S0) and excited (S1) state structures of all compounds were optimized by density functional theory (DFT) and time-dependent (TDDFT) method, with B3LYP/6-311+G(d,p) level, respectively. The infrared spectra and potential energy curves were simulated at the same theoretical level. The reduced density gradient scatter plots and interaction region indicator isosurfaces were drawn using Multiwfn and VMD programs. The absorption and fluorescence spectra were simulated by the TDDFT/B3PW91/6-311+G(d,p) method. All the calculations in this work are carried out in Gaussian 16 program package.
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Affiliation(s)
- Hongda Cai
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, China
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, 150040, China
- Heilongjiang Provincial Key Laboratory of Ecological Utilization of Forestry-Based Active Substances, Northeast Forestry University, Harbin, 150040, China
| | - Hui Lu
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, China
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, 150040, China
- Heilongjiang Provincial Key Laboratory of Ecological Utilization of Forestry-Based Active Substances, Northeast Forestry University, Harbin, 150040, China
| | - Baipei Liu
- Aulin College, Northeast Forestry University, Harbin, 150040, China
| | - Chaofan Sun
- College of Science, Northeast Forestry University, Harbin, 150040, China
| | - Xiuhua Zhao
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, China.
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, 150040, China.
- Heilongjiang Provincial Key Laboratory of Ecological Utilization of Forestry-Based Active Substances, Northeast Forestry University, Harbin, 150040, China.
| | - Dongmei Zhao
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, China.
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, 150040, China.
- Heilongjiang Provincial Key Laboratory of Ecological Utilization of Forestry-Based Active Substances, Northeast Forestry University, Harbin, 150040, China.
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6
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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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7
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Excited state intramolecular proton transfer in 1,4-Dihydroxyanthraquinone. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2022.111783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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8
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Fu CB, Qu JJ, Yu XF, Cheng JB, Li Q. Triple proton transfer after water rearrangement in (2,6-aza)Ind·(H2O)2. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Zhu L, Zhou Q, Cao B, Li B, Wang Z, Zhang X, Yin H, Shi Y. Theoretical reconsideration of the mechanism of the excited state proton transfer of indigo carmine in water. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Nag P, Anand N, Vennapusa SR. Ultrafast nonadiabatic excited-state intramolecular proton transfer in 3-hydroxychromone: A surface hopping approach. J Chem Phys 2021; 155:094301. [PMID: 34496583 DOI: 10.1063/5.0060934] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We employ the ab initio molecular dynamics within the surface hopping method to explore the excited-state intramolecular proton transfer taking place on the coupled "bright" S1 (ππ*) and "dark" S2 (nπ*) states of 3-hydroxychromone. The nonadiabatic population transfer between these states via an accessible conical intersection would open up multiple proton transfer pathways. Our findings reveal the keto tautomer formation via S1 on a timescale similar to the O-H in-plane vibrational period (<100 fs). Structural analysis indicates that a few parameters of the five-membered proton transfer geometry that constitute the donor (hydroxyl) and acceptor (carbonyl) groups would be adequate to drive the enol to keto transformation. We also investigate the role of O-H in-plane and out-of-plane vibrational motions in the excited-state dynamics of 3-hydroxychromone.
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Affiliation(s)
- Probal Nag
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala PO, Vithura, Thiruvananthapuram 695551, India
| | - Neethu Anand
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala PO, Vithura, Thiruvananthapuram 695551, India
| | - Sivaranjana Reddy Vennapusa
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala PO, Vithura, Thiruvananthapuram 695551, India
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12
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Jankowska J, Sobolewski AL. Modern Theoretical Approaches to Modeling the Excited-State Intramolecular Proton Transfer: An Overview. Molecules 2021; 26:molecules26175140. [PMID: 34500574 PMCID: PMC8434569 DOI: 10.3390/molecules26175140] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/20/2021] [Accepted: 08/23/2021] [Indexed: 02/02/2023] Open
Abstract
The excited-state intramolecular proton transfer (ESIPT) phenomenon is nowadays widely acknowledged to play a crucial role in many photobiological and photochemical processes. It is an extremely fast transformation, often taking place at sub-100 fs timescales. While its experimental characterization can be highly challenging, a rich manifold of theoretical approaches at different levels is nowadays available to support and guide experimental investigations. In this perspective, we summarize the state-of-the-art quantum-chemical methods, as well as molecular- and quantum-dynamics tools successfully applied in ESIPT process studies, focusing on a critical comparison of their specific properties.
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Affiliation(s)
- Joanna Jankowska
- Faculty of Chemistry, University of Warsaw, 02-093 Warsaw, Poland
- Correspondence:
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13
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Chansen W, Kungwan N. Theoretical Insights into Excited-State Intermolecular Proton Transfers of 2,7-Diazaindole in Water Using a Microsolvation Approach. J Phys Chem A 2021; 125:5314-5325. [PMID: 34125551 DOI: 10.1021/acs.jpca.1c03120] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The detailed excited-state intermolecular proton transfer (ESInterPT) mechanism of 2,7-diazaindole with water wires consisting of either one or two shells [2,7-DAI(H2O)n; n = 1-5] has been theoretically explored by time-dependent density functional theory using microsolvation with an implicit solvent model. On the basis of the excited-state potential energy surfaces along the proton transfer (PT) coordinates, among all 2,7-DAI(H2O)n, the multiple ESInterPT of 2,7-DAI(H2O)2+3 through the first hydration shell (inner circuit) is the most easy process to occur with the lowest PT barrier and a highly exothermic reaction. The lowest PT barrier resulted from the outer three waters pushing the inner circuit waters to be much closer to 2,7-DAI, leading to the enhanced intermolecular hydrogen-bonding strength of the inner two waters. Moreover, on-the-fly dynamic simulations show that the multiple ESInterPT mechanism of 2,7-DAI(H2O)2+3 is the triple PT in a stepwise mechanism with the highest PT probability. This solvation effect using microsolvation and dynamic simulation is a cost-effect approach to reveal the solvent-assisted multiple proton relay of chromophores based on excited-state proton transfer.
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Affiliation(s)
- Warinthon Chansen
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.,Graduate School, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Nawee Kungwan
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.,Center of Excellence in Material Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand
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14
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A novel aggregation-induced dual emission probe for in situ light-up detection of endogenous alkaline phosphatase. Talanta 2021; 225:121950. [PMID: 33592705 DOI: 10.1016/j.talanta.2020.121950] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 11/16/2020] [Accepted: 11/30/2020] [Indexed: 11/21/2022]
Abstract
Abnormal level of alkaline phosphatase (ALP) activity has been linked to many diseases in human. The development of fluorescent molecular probes that can report the expression and activity of ALP in various biological systems will be extremely valuable. However, the in vivo monitoring for ALP in living cells and more complex biological systems remains a great challenge. The excited-state intramolecular proton transfer (ESIPT) probe with proportional fluorescence has low background noise, while the aggregation induced emission (AIE) probe has the advantages of signal amplification and good light stability. Herein, an "AIE + ESIPT" fluorescent probe 2-(benzo[d]thiazol-2-yl)-4-(1,4,5-triphenyl-1H-imidazole-2-yl)phenyl dihydrogen phosphate (THP) was constructed for the highly selective and sensitive detection of ALP. By introducing a phosphate ester at the hydroxyl position of the solid fluorophore 2-(benzo[d]thiazol-2-yl)-4-(1,4,5-triphenyl-1H-imidazole-2-yl)phenol, ESIPT was hindered and the probe present a faint blue fluorescence in DMSO solution. While ALP was introduced, causing the phosphate in THP hydrolyzed, and the ESIPT process was restored to yield a yellow fluorescence at 550 nm, thereby achieving proportionality detection. THP exhibited high selectivity and sensitively to ALP with low limit of detection (1.21228 U/L), and the reaction completed within 20 min. In addition, with its outstanding advantages of low biological toxicity and enzyme conversion characteristics, THP has been successfully applied to ALP imaging in living cells (Hela cells, A549 cells and Hek293 cells), and can provide in situ information on the reaction site. Therefore, THP has the potential for detecting ALP activity in biomedical application.
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Kediya S, Manhas A, Jha PC. DFT/TD‐DFT Based Study to Decipher the Proton Transfer Process in Anion Sensing Mechanism of NTS Molecule. ChemistrySelect 2020. [DOI: 10.1002/slct.202000550] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Siddhi Kediya
- School of Applied Material ScienceCentral University of Gujarat Gandhinagar 382030 Gujarat India
| | - Anu Manhas
- School of Chemical SciencesCentral University of Gujarat Gandhinagar 382030 Gujarat India
| | - Prakash C. Jha
- School of Applied Material ScienceCentral University of Gujarat Gandhinagar 382030 Gujarat India
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16
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Tang Z, Wei H, Zhou P. Effects of solvents on the excited state intramolecular proton transfer and hydrogen bond mechanisms of alizarin and its isomers. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.112415] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Chaihan K, Kungwan N. Effect of number and different types of proton donors on excited-state intramolecular single and double proton transfer in bipyridine derivatives: theoretical insights. NEW J CHEM 2020. [DOI: 10.1039/d0nj01304h] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Intra-HBs are strengthened upon photoexcitation, confirmed by red-shift in vibrational mode and topology analysis. Number and type of donors result in difference in photophysical properties. Occurrence of ESIPT depends on barrier and reaction energy.
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Affiliation(s)
- Komsun Chaihan
- Department of Chemistry, Faculty of Science
- Chiang Mai University
- Chiang Mai 50200
- Thailand
- The Graduate School
| | - Nawee Kungwan
- Department of Chemistry, Faculty of Science
- Chiang Mai University
- Chiang Mai 50200
- Thailand
- Center of Excellence in Materials Science and Technology
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18
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Wang J, Liu Q, Yang D. Unraveling photoexcitation dynamical behavior for bis (salicylidene)‐1,5‐diaminonaphthalene (BSD) system. J PHYS ORG CHEM 2019. [DOI: 10.1002/poc.4033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jiemin Wang
- Department of Physics and Electronic InformationLuoyang Normal University Luoyang PR China
- Henan Key Laboratory of Electromagnetic Transformation and DetectionLuoyang Normal University Luoyang PR China
| | - Qiang Liu
- Department of Physics and Electronic InformationLuoyang Normal University Luoyang PR China
- Henan Key Laboratory of Electromagnetic Transformation and DetectionLuoyang Normal University Luoyang PR China
| | - Dapeng Yang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian PR China
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Senthamizhan A, Fragouli D, Balusamy B, Patil B, Palei M, Sabella S, Uyar T, Athanassiou A. Hydrochromic carbon dots as smart sensors for water sensing in organic solvents. NANOSCALE ADVANCES 2019; 1:4258-4267. [PMID: 36134398 PMCID: PMC9419604 DOI: 10.1039/c9na00493a] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 09/16/2019] [Indexed: 05/09/2023]
Abstract
Smart, stimuli-responsive, photoluminescent materials that undergo a visually perceptible emission color change in the presence of an external stimulus have long been attractive for use in sensor platforms. When the stimulus is the presence of water, the materials that undergo changes in their light emission properties are called hydrochromic and they can be used for the development of sensors to detect and quantify the water content in organic solvents, which is fundamental for laboratory safety and numerous industrial applications. Herein, we demonstrate the preparation of structurally different carbon dots with tunable emission wavelengths via a simple carbonization approach under controlled temperature and time, involving commercial brown sugar as a starting material. The detailed experimental analysis reveals the "structure-hydrochromic property" relationship of the carbon dots and assesses their capability as effective water sensors. The carbon dots that were proved most efficient for the specific application were then used to identify the presence of water in various aprotic and protic organic solvents via a sensing mechanism based either on the fluorescence wavelength shift or on the fluorescence intensity enhancement, respectively, attributed to the formation of intermolecular hydrogen bonds between carbon dots and water molecules. This is the first demonstration of structurally defined carbon dots in a specific application. The developed carbon dots, apart from being environmentally friendly, were proved to also be biocompatible, enabling this presented process to be a path to "green" sensors.
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Affiliation(s)
| | - Despina Fragouli
- Smart Materials, Istituto Italiano di Tecnologia 16163 Genova Italy
| | - Brabu Balusamy
- Nanoregulatory Platform, PharmaChemistry, Department of Drug Discovery and Development, Istituto Italiano di Tecnologia 16163 Genova Italy
| | - Bhushan Patil
- Institute of Materials Science & Nanotechnology, Bilkent University Ankara 06800 Turkey
| | - Milan Palei
- Nanochemistry Department, Istituto Italiano di Tecnologia 16163 Genova Italy
| | - Stefania Sabella
- Nanoregulatory Platform, PharmaChemistry, Department of Drug Discovery and Development, Istituto Italiano di Tecnologia 16163 Genova Italy
| | - Tamer Uyar
- Institute of Materials Science & Nanotechnology, Bilkent University Ankara 06800 Turkey
- Department of Fiber Science and Apparel Design, College of Human Ecology, Cornell University Ithaca NY 14853 USA
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Berenbeim J, Boldissar S, Owens S, Haggmark M, Gate G, Siouri F, Cohen T, Rode MF, Patterson CS, de Vries M. Excited state intramolecular proton transfer in hydroxyanthraquinones: Toward predicting fading of organic red colorants in art. SCIENCE ADVANCES 2019; 5:eaaw5227. [PMID: 31523708 PMCID: PMC6731090 DOI: 10.1126/sciadv.aaw5227] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 08/02/2019] [Indexed: 05/14/2023]
Abstract
Compositionally similar organic red colorants in the anthraquinone family, whose photodegradation can cause irreversible color and stability changes, have long been used in works of art. Different organic reds, and their multiple chromophores, suffer degradation disparately. Understanding the details of these molecules' degradation therefore provides a window into their behavior in works of art and may assist the development of improved conservation methods. According to one proposed model of photodegradation dynamics, intramolecular proton transfer provides a kinetically favored decay pathway in some photoexcited chromophores, preventing degradation-promoting electron transfer (ET). To further test this model, we measured excited state lifetimes of substituted gas-phase anthraquinones using high-level theory to explain the experimental results. The data show a general structural trend: Anthraquinones with 1,4-OH substitution are long-lived and prone to damaging ET, while excited state intramolecular proton transfers promote efficient quenching for hydroxyanthraquinones that lack this motif.
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Affiliation(s)
- J.A. Berenbeim
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - S. Boldissar
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - S. Owens
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - M.R. Haggmark
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - G. Gate
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - F.M. Siouri
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - T. Cohen
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - M. F. Rode
- Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, PL-02668 Warsaw, Poland
| | - C. Schmidt Patterson
- Getty Conservation Institute, 1200 Getty Center Drive, Suite 700, Los Angeles, CA, USA
| | - M.S. de Vries
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA, USA
- Corresponding author.
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21
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Chen Y, Yang Y, Zhao Y, Liu S, Li Y. Effect of solvent environment on excited state intramolecular proton transfer in 2-(4-(dimethylamino)phenyl)-3-hydroxy-6,7-dimethoxy-4h-chromen-4-one. Phys Chem Chem Phys 2019; 21:17711-17719. [PMID: 31367718 DOI: 10.1039/c9cp03752g] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The new ratiometric fluorescent probe 2-(4-(dimethylamino)phenyl)-3-hydroxy-6,7-dimethoxy-4h-chromen-4-one (HOF) monitoring of methanol in biodiesel was discovered experimentally (T. Y. Qin et al., Sens. Actuators, B, 2018, 277, 484-491). But the experimental study did not report the reaction mechanism in detail. In this study, density functional theory (DFT) and time-density functional theory (TDDFT) methods were used to theoretically study the excited-state intramolecular proton transfer (ESIPT) process of the HOF molecule. The molecular structure in the ground state and the excited state was optimized, and the infrared vibrational spectra, the frontier molecular orbitals, the charge transfer, the potential energy curves and the transition-state structures were calculated. The calculated results prove that the solvent polarity has a great influence on the ESIPT reaction of the HOF molecule. As the solvent polarity increased, the intensity of the intramolecular hydrogen bond decreased, and ESIPT was more difficult to occur. This work has studied the mechanism of the ESIPT reaction in more detail, and paved the way for future research on HOF molecules.
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Affiliation(s)
- Yunpeng Chen
- Department of Physics, Liaoning University, Shenyang 110036, P. R. China.
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22
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Structural, photophysical and electrochemical properties of a novel cardanol-based salophen ligand and its Mn(II) complex. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.12.111] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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23
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Hao J, Yang Y. Dynamic Excited-State Intramolecular Proton Transfer Mechanisms of Two Novel 3-Hydroxyflavone-Based Chromophores in Two Different Surroundings. J Phys Chem A 2019; 123:3937-3948. [DOI: 10.1021/acs.jpca.9b00879] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Jiaojiao Hao
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yang Yang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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24
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Angiolini L, Cohen B, Douhal A. Ultrafast dynamics of the antibiotic Rifampicin in solution. Photochem Photobiol Sci 2019; 18:80-91. [DOI: 10.1039/c8pp00192h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ultrafast time-resolved studies demonstrate that intra- and intermolecular H-bonds with water molecules act synergistically to stabilize the active zwitterionic form of Rifampicin, an effective antibiotic against mycobacterial infections.
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Affiliation(s)
- Lorenzo Angiolini
- Departamento de Química Física
- Facultad de Ciencias Ambientales y Bioquímica and INAMOL
- Universidad de Castilla-La Mancha
- 45071 Toledo
- Spain
| | - Boiko Cohen
- Departamento de Química Física
- Facultad de Ciencias Ambientales y Bioquímica and INAMOL
- Universidad de Castilla-La Mancha
- 45071 Toledo
- Spain
| | - Abderrazzak Douhal
- Departamento de Química Física
- Facultad de Ciencias Ambientales y Bioquímica and INAMOL
- Universidad de Castilla-La Mancha
- 45071 Toledo
- Spain
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25
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Chen Y, Yang Y, Zhao Y, Liu S, Li Y. The effect of different environments on excited-state intramolecular proton transfer in 4′-methoxy-3-hydroxyflavone. Org Chem Front 2019. [DOI: 10.1039/c8qo01111g] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Excited state intramolecular proton transfer reaction occurs with increasing difficulty in the solvents tested in the order toluene → ACN → DMF.
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Affiliation(s)
- Yunpeng Chen
- Department of Physics
- Liaoning University
- Shenyang 110036
- P. R. China
| | - Yunfan Yang
- Department of Physics
- Liaoning University
- Shenyang 110036
- P. R. China
| | - Yu Zhao
- Department of Physics
- Liaoning University
- Shenyang 110036
- P. R. China
| | - Shixing Liu
- Department of Physics
- Liaoning University
- Shenyang 110036
- P. R. China
| | - Yongqing Li
- Department of Physics
- Liaoning University
- Shenyang 110036
- P. R. China
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26
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Munch M, Curtil M, Vérité PM, Jacquemin D, Massue J, Ulrich G. Ethynyl-Tolyl Extended 2-(2′-Hydroxyphenyl)benzoxazole Dyes: Solution and Solid-state Excited-State Intramolecular Proton Transfer (ESIPT) Emitters. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801590] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Maxime Munch
- UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM); Institut de Chimie et Procédés pour l′Energie, l′Environnement et la Santé (ICPEES); 25 Rue Becquerel 67087 Strasbourg Cedex 02 France
| | - Mathieu Curtil
- UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM); Institut de Chimie et Procédés pour l′Energie, l′Environnement et la Santé (ICPEES); 25 Rue Becquerel 67087 Strasbourg Cedex 02 France
| | - Pauline M. Vérité
- CEISAM, UMR CNRS 6230, BP 92208; 2 rue de la Houssinière 44322 Nantes, Cedex 03 France
| | - Denis Jacquemin
- CEISAM, UMR CNRS 6230, BP 92208; 2 rue de la Houssinière 44322 Nantes, Cedex 03 France
| | - Julien Massue
- UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM); Institut de Chimie et Procédés pour l′Energie, l′Environnement et la Santé (ICPEES); 25 Rue Becquerel 67087 Strasbourg Cedex 02 France
| | - Gilles Ulrich
- UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM); Institut de Chimie et Procédés pour l′Energie, l′Environnement et la Santé (ICPEES); 25 Rue Becquerel 67087 Strasbourg Cedex 02 France
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27
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Hao J, Yang Y. The theoretical study about the ESIPT mechanism for 2,4-bis(benzooxazol-2′-yl)hydroquinone: Single or double? J PHYS ORG CHEM 2018. [DOI: 10.1002/poc.3903] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jiaojiao Hao
- State Key Laboratory of Molecular Reaction Dynamics; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian China
| | - Yang Yang
- State Key Laboratory of Molecular Reaction Dynamics; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian China
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28
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Massue J, Jacquemin D, Ulrich G. Molecular Engineering of Excited-state Intramolecular Proton Transfer (ESIPT) Dual and Triple Emitters. CHEM LETT 2018. [DOI: 10.1246/cl.180495] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Julien Massue
- Institut de Chimie et Procédés pour l’Énergie, l’Environnement et la Santé (ICPEES), UMR CNRS 7515, 25 Rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Denis Jacquemin
- CEISAM, UMR CNRS 6230, BP 92208, 2 rue de la Houssinière, 44322 Nantes, Cedex 03, France
| | - Gilles Ulrich
- Institut de Chimie et Procédés pour l’Énergie, l’Environnement et la Santé (ICPEES), UMR CNRS 7515, 25 Rue Becquerel, 67087 Strasbourg Cedex 02, France
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29
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Dong H, Zhao J, Yang H, Zheng Y. The mechanism of ratiometric fluoride sensing and the ESIPT process for 2,6-dibenzothiazolylphenol and its derivative. Org Chem Front 2018. [DOI: 10.1039/c7qo01076a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
In this work, we explore the excited state intramolecular proton transfer (ESIPT) process and the relevant fluoride-sensing mechanism of two novel chemical systems, 2,6-dibenzothiazolylphenol (26DB) and bis-2,6-dibenzothiazolylphenol (Bis-26DB).
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Affiliation(s)
- Hao Dong
- School of Physics
- Shandong University
- Jinan 250100
- China
| | - Jinfeng Zhao
- School of Physics
- Shandong University
- Jinan 250100
- China
| | - Huan Yang
- School of Physics
- Shandong University
- Jinan 250100
- China
| | - Yujun Zheng
- School of Physics
- Shandong University
- Jinan 250100
- China
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30
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Nagaoka SI, Bandoh Y, Nagashima U, Ohara K. Correlation among Singlet-Oxygen Quenching, Free-Radical Scavenging, and Excited-State Intramolecular-Proton-Transfer Activities in Hydroxyflavones, Anthocyanidins, and 1-Hydroxyanthraquinones. J Phys Chem A 2017; 121:8069-8079. [DOI: 10.1021/acs.jpca.7b07869] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Shin-ichi Nagaoka
- Department
of Chemistry, Faculty of Science and Graduate School of Science and
Engineering, Ehime University, Matsuyama 790-8577, Japan
| | - Yuki Bandoh
- Department
of Chemistry, Faculty of Science and Graduate School of Science and
Engineering, Ehime University, Matsuyama 790-8577, Japan
| | - Umpei Nagashima
- Foundation for Computational Science, 7-1-28 Minatojima-minami-machi,
Chuo-ku, Kobe 650-0047, Japan
| | - Keishi Ohara
- Department
of Chemistry, Faculty of Science and Graduate School of Science and
Engineering, Ehime University, Matsuyama 790-8577, Japan
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