1
|
Xie ZL, Gupta N, Niklas J, Poluektov OG, Lynch VM, Glusac KD, Mulfort KL. Photochemical charge accumulation in a heteroleptic copper(i)-anthraquinone molecular dyad via proton-coupled electron transfer. Chem Sci 2023; 14:10219-10235. [PMID: 37772110 PMCID: PMC10529959 DOI: 10.1039/d3sc03428c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 08/30/2023] [Indexed: 09/30/2023] Open
Abstract
Developing efficient photocatalysts that perform multi electron redox reactions is critical to achieving solar energy conversion. One can reach this goal by developing systems which mimic natural photosynthesis and exploit strategies such as proton-coupled electron transfer (PCET) to achieve photochemical charge accumulation. We report herein a heteroleptic Cu(i)bis(phenanthroline) complex, Cu-AnQ, featuring a fused phenazine-anthraquinone moiety that photochemically accumulates two electrons in the anthraquinone unit via PCET. Full spectroscopic and electrochemical analyses allowed us to identify the reduced species and revealed that up to three electrons can be accumulated in the phenazine-anthraquinone ring system under electrochemical conditions. Continuous photolysis of Cu-AnQ in the presence of sacrificial electron donor produced doubly reduced monoprotonated photoproduct confirmed unambiguously by X-ray crystallography. Formation of this photoproduct indicates that a PCET process occurred during illumination and two electrons were accumulated in the system. The role of the heteroleptic Cu(i)bis(phenanthroline) moiety participating in the photochemical charge accumulation as a light absorber was evidenced by comparing the photolysis of Cu-AnQ and the free AnQ ligand with less reductive triethylamine as a sacrificial electron donor, in which photogenerated doubly reduced species was observed with Cu-AnQ, but not with the free ligand. The thermodynamic properties of Cu-AnQ were examined by DFT which mapped the probable reaction pathway for photochemical charge accumulation and the capacity for solar energy stored in the process. This study presents a unique system built on earth-abundant transition metal complex to store electrons, and tune the storage of solar energy by the degree of protonation of the electron acceptor.
Collapse
Affiliation(s)
- Zhu-Lin Xie
- Division of Chemical Sciences and Engineering, Argonne National Laboratory USA
| | - Nikita Gupta
- Division of Chemical Sciences and Engineering, Argonne National Laboratory USA
- Department of Chemistry, University of Illinois at Chicago USA
| | - Jens Niklas
- Division of Chemical Sciences and Engineering, Argonne National Laboratory USA
| | - Oleg G Poluektov
- Division of Chemical Sciences and Engineering, Argonne National Laboratory USA
| | | | - Ksenija D Glusac
- Division of Chemical Sciences and Engineering, Argonne National Laboratory USA
- Department of Chemistry, University of Illinois at Chicago USA
| | - Karen L Mulfort
- Division of Chemical Sciences and Engineering, Argonne National Laboratory USA
| |
Collapse
|
2
|
Loe CM, Liekhus-Schmaltz C, Govind N, Khalil M. Spectral Signatures of Ultrafast Excited-State Intramolecular Proton Transfer from Computational Multi-edge Transient X-ray Absorption Spectroscopy. J Phys Chem Lett 2021; 12:9840-9847. [PMID: 34606267 DOI: 10.1021/acs.jpclett.1c02483] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Excited-state intramolecular proton transfer (ESIPT) is a fundamental chemical process with several applications. Ultrafast ESIPT involves coupled electronic and atomic motions and has been primarily studied using femtosecond optical spectroscopy. X-ray spectroscopy is particularly useful because it is element-specific and enables direct, individual probes of the proton-donating and -accepting atoms. Herein, we report a computational study to resolve the ESIPT in 10-hydroxybenzo[h]quinoline (HBQ), an intramolecularly hydrogen bonded compound. We use linear-response time-dependent density functional theory (LR-TDDFT) combined with ab initio molecular dynamics (AIMD) and time-resolved X-ray absorption spectroscopy (XAS) computations to track the ultrafast excited-state dynamics. Our results reveal clear X-ray spectral signatures of coupled electronic and atomic motions during and following ESIPT at the oxygen and nitrogen K-edge, paving the way for future experiments at X-ray free electron lasers.
Collapse
Affiliation(s)
- Caroline M Loe
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | | | - Niranjan Govind
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Munira Khalil
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| |
Collapse
|
3
|
Joshi HC, Antonov L. Excited-State Intramolecular Proton Transfer: A Short Introductory Review. Molecules 2021; 26:molecules26051475. [PMID: 33803102 PMCID: PMC7963178 DOI: 10.3390/molecules26051475] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 12/03/2022] Open
Abstract
In this short review, we attempt to unfold various aspects of excited-state intramolecular proton transfer (ESIPT) from the studies that are available up to date. Since Weller’s discovery of ESIPT in salicylic acid (SA) and its derivative methyl salicylate (MS), numerous studies have emerged on the topic and it has become an attractive field of research because of its manifold applications. Here, we discuss some critical aspects of ESIPT and tautomerization from the mechanistic viewpoint. We address excitation wavelength dependence, anti-Kasha ESIPT, fast and slow ESIPT, reversibility and irreversibility of ESIPT, hydrogen bonding and geometrical factors, excited-state double proton transfer (ESDPT), concerted and stepwise ESDPT.
Collapse
Affiliation(s)
- Hem C. Joshi
- Institute for Plasma Research, Bhat, Gandhinagar 382428, India;
| | - Liudmil Antonov
- Institute of Electronics, Bulgarian Academy of Sciences, 1784 Sofia, Bulgaria
- Correspondence:
| |
Collapse
|
4
|
Yordanov D, Deneva V, Georgiev A, Crochet A, Fromm KM, Antonov L. Indirect solvent assisted tautomerism in 4-substituted phthalimide 2-hydroxy-Schiff bases. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 237:118416. [PMID: 32388169 DOI: 10.1016/j.saa.2020.118416] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 04/21/2020] [Accepted: 04/25/2020] [Indexed: 06/11/2023]
Abstract
The paper presents the synthesis and characterization of two 4-substituted phthalimide 2-hydroxy-Schiff bases containing salicylic (4) and 2-hydroxy-1-naphthyl (5) moieties. The structural differences of 2-hydroxyaryl substituents, resulting in different enol/keto tautomeric behaviour, depending on the solvent environment were studied by absorption UV-Vis spectroscopy. Compound 5 is characterized by a solvent-dependent tautomeric equilibrium (KT in toluene = 0.12, acetonitrile = 0.22 and MeOH = 0.63) while no tautomerism is observed in 4. Ground state theoretical DFT calculations by using continuum solvation in MeOH indicate an energy barrier between enol/keto tautomer 5.6 kcal mol-1 of 4 and 0.63 kcal mol-1 of 5, which confirms the experimentally observed impossibility of the tautomeric equilibrium in the former. The experimentally observed specific solvent effect in methanol is modeled via explicit solvation. The excited state intramolecular proton transfer (ESIPT) was investigated by steady state fluorescence spectroscopy. Both compounds show a high rate of photoconversion to keto tautomers hence keto emissions with large Stokes shifts in five alcohols (MeOH, EtOH, 1-propanol, 1-butanol, and 1-pentanol) and various aprotic solvents (toluene, dichlormethane, acetone, AcCN). According to the excited state TDDFT calculations using implicit solvation in MeOH, it was found that enol tautomers of 4 and 5 are higher in energy compared to the keto ones, which explains the origin of the experimentally observed keto form emission.
Collapse
Affiliation(s)
- Dancho Yordanov
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Vera Deneva
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Anton Georgiev
- Department of Organic Chemistry, University of Chemical Technology and Metallurgy, 1756 Sofia, Bulgaria; Institute of Optical Materials and Technologies, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria.
| | - Aurelien Crochet
- Department of Chemistry and Fribourg Center for Nanomaterials FriMat, University of Fribourg, CH-1700 Fribourg, Switzerland
| | - Katharina M Fromm
- Department of Chemistry and Fribourg Center for Nanomaterials FriMat, University of Fribourg, CH-1700 Fribourg, Switzerland
| | - Liudmil Antonov
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; Institute of Electronics, Bulgarian Academy of Sciences, 1784 Sofia, Bulgaria.
| |
Collapse
|
5
|
Fang H. A theoretical study on water-assisted excited state double proton transfer process in substituted 2,7-diazaindole-H2O complex. Theor Chem Acc 2020. [DOI: 10.1007/s00214-020-02655-3] [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]
|
6
|
Ni M, Su S, Fang H. Substituent control of photophysical properties for excited-state intramolecular proton transfer (ESIPT) of o-LHBDI derivatives: a TD-DFT investigation. J Mol Model 2020; 26:108. [PMID: 32328800 DOI: 10.1007/s00894-020-04378-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 04/07/2020] [Indexed: 11/24/2022]
Abstract
The substituted effect on excited-state intramolecular proton transfer (ESIPT) of o-LHBDI derivatives (4R-o-LHBDI) was investigated by DFT and TD-DFT methods. The structures of 4R-o-LHBDI (R: OH, NH2, CN, NO2, CF3) were fully optimized, and the H-bond distances, bond angles, and infrared spectra of the atoms involved in PT process in the S0 and S1 states were analyzed. The absorption and fluorescence spectra were calculated, and the potential energy curves in both S0 and S1 states were constructed. Moreover, the effects of different substituents on the ESIPT mechanism of 4R-o-LHBDI (R: OH, NH2, CN, NO2, CF3) were studied. The results indicate that ESIPT in the 4R-o-LHBDI is a little harder to proceed than that in o-LHBDI since the ESIPT barrier of 4R-o-LHBDI is slightly bigger than that value of o-LHBDI. When the substituent has stronger electron-withdrawing ability or weaker electron-donating ability, the ESIPT process has the smaller potential barrier. Graphical abstract.
Collapse
Affiliation(s)
- Mei Ni
- Department of Chemistry and Material Science, College of Science, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Shenyang Su
- Department of Chemistry and Material Science, College of Science, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Hua Fang
- Department of Chemistry and Material Science, College of Science, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.
| |
Collapse
|
7
|
|
8
|
Deneva V, Dobrikov G, Crochet A, Nedeltcheva D, Fromm KM, Antonov L. Tautomerism as primary signaling mechanism in metal sensing: the case of amide group. Beilstein J Org Chem 2019; 15:1898-1906. [PMID: 31467611 PMCID: PMC6693416 DOI: 10.3762/bjoc.15.185] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 08/01/2019] [Indexed: 12/16/2022] Open
Abstract
The concept for sensing systems using the tautomerism as elementary signaling process has been further developed by synthesizing a ligand containing 4-(phenyldiazenyl)naphthalene-1-ol as a tautomeric block and an amide group as metal capturing antenna. Although it has been expected that the intramolecular hydrogen bonding (between the tautomeric hydroxy group and the nitrogen atom from the amide group) could stabilize the pure enol form in some solvents, the keto tautomer is also observed. This is a result from the formation of intramolecular associates in some solvents. Strong bathochromic and hyperchromic effects in the visible spectra accompany the 1:1 formation of complexes with some alkaline earth metal ions.
Collapse
Affiliation(s)
- Vera Deneva
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| | - Georgi Dobrikov
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| | - Aurelien Crochet
- University of Fribourg, Department of Chemistry, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Daniela Nedeltcheva
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| | - Katharina M Fromm
- University of Fribourg, Department of Chemistry, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Liudmil Antonov
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| |
Collapse
|
9
|
Deneva V, Antonov L. Attaching tweezers like ionophore to a proton crane: theoretical design of new tautomeric sensors. Mol Phys 2019. [DOI: 10.1080/00268976.2018.1562127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Vera Deneva
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Liudmil Antonov
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| |
Collapse
|
10
|
Yu XF, Xiao B, Cheng J, Liu ZB, Yang X, Li Q. Theoretical Design of Near-Infrared Fluorescent Sensor for F Anion Detection Based on 10-Hydroxybenzo[ h]quinoline Backbone. ACS OMEGA 2019; 4:10516-10523. [PMID: 31460149 PMCID: PMC6648395 DOI: 10.1021/acsomega.9b00693] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 05/30/2019] [Indexed: 06/10/2023]
Abstract
Proper design and development of near-infrared (NIR) fluorescent sensors is very important for applications in vivo. In this work, we theoretically designed a ratiometric and NIR fluorescent sensor based on the 10-hydroxybenzo[h]quinoline (HBQ) backbone via systematically investigating the substituent effects of electron-donating groups (-NH2, -CH3, -C(CH3)3) and electron-withdrawing groups (-NO2, -CN, -F, -Cl, -CF3) at the proton donor site on the proton transfer process in HBQ in both the S0 and the S1 states. According to the calculated potential energy profiles along the proton transfer as well as the photophysical properties among all the derivatives, we successfully screened out that 7NH2-HBQ is a promising fluorescent sensor exhibiting the near IR emission spectra accompanied by the large Stokes shift. The potential use of 7NH2-HBQ for F- detection among anions (F-, Cl-, and Br-) was further studied, and the results showed that 7NH2-HBQ is very sensitive and selective toward F- based on the intermolecular hydrogen bonding interaction between F- and OH bond, forming a new complex FACS0 . The ratiometric change in the fluorescence intensity could be induced by the H-F bond transfer from the O atom to the N atom in the S1 state.
Collapse
|
11
|
Maity S, Ray SS, Chatterjee A, Chakraborty N, Ganguly J. Sugar‐Based Self‐Assembly of Hydrogel Nanotubes Manifesting ESIPT: Theoretical Insight and Application in Live Cell Imaging. ChemistrySelect 2018. [DOI: 10.1002/slct.201800604] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Santu Maity
- Department of ChemistryIndian Institute of Engineering Science and Technology Howrah- 711103 India
| | - Suvonil Sinha Ray
- Department of ChemistryIndian Institute of Engineering Science and Technology Howrah- 711103 India
| | | | | | - Jhuma Ganguly
- Department of ChemistryIndian Institute of Engineering Science and Technology Howrah- 711103 India
| |
Collapse
|
12
|
Marciniak H, Hristova S, Deneva V, Kamounah FS, Hansen PE, Lochbrunner S, Antonov L. Dynamics of excited state proton transfer in nitro substituted 10-hydroxybenzo[h]quinolines. Phys Chem Chem Phys 2018; 19:26621-26629. [PMID: 28953273 DOI: 10.1039/c7cp04476c] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The ground state tautomerism and excited state intramolecular proton transfer (ESIPT) of 10-hydroxybenzo[h]quinoline (HBQ) and its nitro derivatives, 7-nitrobenzo[h]quinolin-10-ol (2) and 7,9-dinitrobenzo[h]quinolin-10-ol (3), have been studied in acetonitrile using steady state as well as time dependent spectroscopy and quantum-chemical calculations. In addition to the enol form absorbance in the range 360-390 nm, the absorption spectra of 2 and 3 exhibit a red shifted band at ∼450 nm. Chemometric data processing, based on individual band decomposition, allowed us to estimate the position of the ground state enol-keto tautomeric equilibrium (ΔG values of 1.03 and 0.62 kcal mol-1 respectively for 2 and 3). The fluorescence stems from the keto form even if the enol form is optically excited as proven by the shape of the excitation spectra indicating that ESIPT takes place. The Stokes shift of the substituted compounds is substantially lower compared to HBQ, which follows from the fact that the substitution occurs in the formal cyclohexa-2,4-dienone moiety and leads to a decrease of the HOMO level of the keto tautomer. The pump-probe experiments show that in the nitro substituted HBQs 2 and 3 ESIPT occurs with a time constant of 0.89 ps and 0.68 ps, respectively. In both cases a mixture of the enol and proton transfer forms is optically excited. The enol form exhibits then the ESIPT and subsequently both fractions take the same relaxation path. We propose that in 2 and 3 the ESIPT path exhibits a potential energy barrier resulting in an incoherent rate governed process while in HBQ the ESIPT proceeds as a ballistic wavepacket motion along a path without significant barriers. The theoretical calculations (M06-2X/TZVP) confirm the existence of a barrier in the ground and excited states as result of the substitution.
Collapse
Affiliation(s)
- H Marciniak
- Institut für Physik, Universität Rostock, Albert-Einstein-Straße 23-24, 18059 Rostock, Germany
| | | | | | | | | | | | | |
Collapse
|
13
|
Suzuki N, Suda K, Yokogawa D, Kitoh-Nishioka H, Irle S, Ando A, Abegão LMG, Kamada K, Fukazawa A, Yamaguchi S. Near infrared two-photon-excited and -emissive dyes based on a strapped excited-state intramolecular proton-transfer (ESIPT) scaffold. Chem Sci 2018; 9:2666-2673. [PMID: 29719675 PMCID: PMC5897875 DOI: 10.1039/c8sc00066b] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Accepted: 01/26/2018] [Indexed: 12/21/2022] Open
Abstract
Strapped acceptor–π–donor–π–acceptor type fluorophores exhibit intense near infrared emission, together with near infrared two-photon absorption.
Fluorophores that can undergo excited-state intramolecular proton transfer (ESIPT) represent promising scaffolds for the design of compounds that show red-shifted fluorescence. Herein, we disclose new near infrared-emissive materials based on a dialkylamine-strapped 2,5-dithienylpyrrole as an ESIPT scaffold. The introduction of electron-accepting units to the terminal positions of this scaffold generates acceptor–π–donor–π–acceptor (A–π–D–π–A) type π-conjugated compounds. Following the ESIPT, the electron-donating ability of the core scaffold increases, which results in a substantially red-shifted emission in the NIR region, while increasing the oscillator strength. The electron-accepting units play a vital role to achieve intense and red-shifted emission from the ESIPT state. The strapped dialkylamine chain that forms an intramolecular hydrogen bond is also essential to induce the ESIPT. Moreover, an extended A–π–D–π–A skeleton enables two-photon excitation with the NIR light. One of the derivatives that satisfy these features, i.e., borylethenyl-substituted 5, exhibited an intense NIR emission in polar solvents such as acetone (λem = 708 nm, ΦF = 0.55) with a strong two-photon-absorption band in the NIR region.
Collapse
Affiliation(s)
- Naoya Suzuki
- Department of Chemistry , Graduate School of Science and Integrated Research Consortium on Chemical Sciences (IRCCS) , Nagoya University , Japan
| | - Kayo Suda
- Institute of Transformative Bio-Molecules (WPI-ITbM) , Nagoya University , Furo, Chikusa , Nagoya , 464-8602 , Japan
| | - Daisuke Yokogawa
- Department of Chemistry , Graduate School of Science and Integrated Research Consortium on Chemical Sciences (IRCCS) , Nagoya University , Japan.,Institute of Transformative Bio-Molecules (WPI-ITbM) , Nagoya University , Furo, Chikusa , Nagoya , 464-8602 , Japan
| | - Hirotaka Kitoh-Nishioka
- Department of Chemistry , Graduate School of Science and Integrated Research Consortium on Chemical Sciences (IRCCS) , Nagoya University , Japan
| | - Stephan Irle
- Department of Chemistry , Graduate School of Science and Integrated Research Consortium on Chemical Sciences (IRCCS) , Nagoya University , Japan.,Institute of Transformative Bio-Molecules (WPI-ITbM) , Nagoya University , Furo, Chikusa , Nagoya , 464-8602 , Japan
| | - Akihiro Ando
- IFMRI , National Institute of Advanced Industrial Science and Technology (AIST) , 1-8-31 Midorigaoka, Ikeda , Osaka , 563-8577 , Japan
| | - Luis M G Abegão
- IFMRI , National Institute of Advanced Industrial Science and Technology (AIST) , 1-8-31 Midorigaoka, Ikeda , Osaka , 563-8577 , Japan.,Departamento de Física , Universidade Federal de Sergipe , 49100-000 São Cristovão , SE , Brazil
| | - Kenji Kamada
- IFMRI , National Institute of Advanced Industrial Science and Technology (AIST) , 1-8-31 Midorigaoka, Ikeda , Osaka , 563-8577 , Japan
| | - Aiko Fukazawa
- Department of Chemistry , Graduate School of Science and Integrated Research Consortium on Chemical Sciences (IRCCS) , Nagoya University , Japan
| | - Shigehiro Yamaguchi
- Department of Chemistry , Graduate School of Science and Integrated Research Consortium on Chemical Sciences (IRCCS) , Nagoya University , Japan.,Institute of Transformative Bio-Molecules (WPI-ITbM) , Nagoya University , Furo, Chikusa , Nagoya , 464-8602 , Japan
| |
Collapse
|
14
|
Chansen W, Salaeh R, Prommin C, Kerdpol K, Daengngern R, Kungwan N. Theoretical study on influence of geometry controlling over the excited-state intramolecular proton transfer of 10-hydroxybenzo[ h ]quinoline and its derivatives. COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2017.05.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
|