1
|
Wu J, Zhang X, Xia J, Zhou Z, Xia SH. Mechanistic Insights into the Excited-State Intramolecular Proton Transfer (ESIPT) Process of 2-(2-Aminophenyl)naphthalene. J Phys Chem A 2024. [PMID: 38709493 DOI: 10.1021/acs.jpca.4c00532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
The 2-(2-aminophenyl)naphthalene molecule attracted much attention due to excited-state intramolecular proton transfer (ESIPT) from an amino NH2 group to a carbon atom of an adjacent aromatic ring. The ESIPT mechanisms of 2-(2-aminophenyl)naphthalene are still unclear. Herein, the decay pathways of this molecule in vacuum were investigated by combining static electronic structure calculations and nonadiabatic dynamics simulations. The calculations indicated the existence of two stable structures (S0-1 and S0-2) in the S0 and S1 states. For the S0-1 isomer, upon excitation to the Franck-Condon point, the system relaxed to the S1 minimum quickly, and then there exist four decay pathways (two ESIPT ones and two decay channels with C atom pyramidalization). In the ESIPT decay pathways, the system encounters the S1S0-PT-1 or S1S0-PT-2 conical intersection, which funnels the system rapidly to the S0 state. In the other two pathways, the system de-excited from the S1 to the S0 state via the S1S0-1 or S1S0-2 conical intersection. For the S0-2 structure, the decay pathways were similar to those of S0-1. The dynamics simulations showed that 75 and 69% of trajectories experienced the two ESIPT conical intersections for the S0-1 and S0-2 structures, respectively. Our simulations showed that the lifetime of the S1 state of S0-1 (S0-2) is estimated to be 358 (400) fs. Notably, we not only found the detailed reaction mechanism of the system but also found that the different ground-state configurations of this system have little effect on the reaction mechanism in vacuum.
Collapse
Affiliation(s)
- Jiahui Wu
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
| | - Xinyu Zhang
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
| | - Jinglin Xia
- Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Zihao Zhou
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
| | - Shu-Hua Xia
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
| |
Collapse
|
2
|
Draženović J, Laconsay CJ, Došlić N, I-Chia Wu J, Basarić N. Excited-state antiaromaticity relief drives facile photoprotonation of carbons in aminobiphenyls. Chem Sci 2024; 15:5225-5237. [PMID: 38577382 PMCID: PMC10988595 DOI: 10.1039/d4sc00642a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Accepted: 03/02/2024] [Indexed: 04/06/2024] Open
Abstract
A combined computational and experimental study reveals that ortho-, meta- and para-aminobiphenyl isomers undergo distinctly different photochemical reactions involving proton transfer. Deuterium exchange experiments show that the ortho-isomer undergoes a facile photoprotonation at a carbon atom via excited-state intramolecular proton transfer (ESIPT). The meta-isomer undergoes water-assisted excited-state proton transfer (ESPT) and a photoredox reaction via proton-coupled electron transfer (PCET). The para-isomer undergoes a water-assisted ESPT reaction. All three reactions take place in the singlet excited-state, except for the photoredox process of the meta-isomer, which involves a triplet excited-state. Computations illustrate the important role of excited-state antiaromaticity relief in these photoreactions.
Collapse
Affiliation(s)
- Josip Draženović
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute Bijenička Cesta 54 10000 Zagreb Croatia
| | - Croix J Laconsay
- Department of Chemistry, University of Houston Houston TX 77204 USA
| | - Nađa Došlić
- Department of Physical Chemistry, Ruđer Bošković Institute Bijenička Cesta 54 10000 Zagreb Croatia
| | - Judy I-Chia Wu
- Department of Chemistry, University of Houston Houston TX 77204 USA
| | - Nikola Basarić
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute Bijenička Cesta 54 10000 Zagreb Croatia
| |
Collapse
|
3
|
Wu J, Chen X, Xia SH, Cui G, Zhang Y. Excited-state photochemistry dynamics of 2-(1-naphthyl) phenol: electronic structure calculations and non-adiabatic dynamics simulations. Phys Chem Chem Phys 2022; 24:21358-21366. [PMID: 36043575 DOI: 10.1039/d2cp03283j] [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 excited-state proton transfer processes and the formation mechanism of quinone methide of (1-naphthyl)phenol were investigated by combining static electronic structure calculations and non-adiabatic dynamics simulations in vacuum. The results indicated the existence of two minimum energy structures (S0-ENOL-1 and S0-ENOL-2) in the ground and excited states, which correspond to two ESIPT pathways. Upon excitation of S0-ENOL-1 to the bright S1 state, the system relaxes to the S1 minimum quickly in the enol region, for which two decay pathways have been described. The first is a barrierless ESIPT-1 process that generates keto species. Afterwards, the system encounters a keto conical intersection, which funnels the system to the ground state. The generated keto species, in the S0 state, either regenerated the starting material via ground-state proton transfer or yielded the keto product at the end of the simulations. In the other pathway, the system de-excites from the S1 state to the S0 state via one enol-type conical intersection. The dynamics simulations showed that 58.8% of trajectories experience keto-type conical intersection and the rest undergo enol-type conical intersection. Besides the ESIPT-1 process, a new-type ESIPT (ESIPT-2), which was not observed experimentally, was found with the irradiation of S0-ENOL-2. The ESIPT-2 process occurs after overcoming a small barrier (0.9 kcal mol-1) and yields a distinct quinone methide. Our simulation results also showed that the S1 lifetime of S0-ENOL-1 (S0-ENOL-2) would be 437 (617) fs in the gas phase. These results provide detailed and important mechanistic insights into the systems in which ESPT to carbon atoms occurs.
Collapse
Affiliation(s)
- Jiahui Wu
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China.
| | - Xiaohang Chen
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China.
| | - Shu-Hua Xia
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China.
| | - Ganglong Cui
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Yan Zhang
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China.
| |
Collapse
|
4
|
Draženović J, Rožić T, Došlić N, Basarić N. Excited State Intramolecular Proton Transfer (ESIPT) from -NH 2 to the Carbon Atom of a Naphthyl Ring. J Org Chem 2022; 87:9148-9156. [PMID: 35763664 DOI: 10.1021/acs.joc.2c00818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Excited state intramolecular proton transfer (ESIPT) has been documented from an amino NH2 group to a carbon atom of an adjacent aromatic ring. This finding changes the paradigm, as hitherto such processes have not been considered as plausible due to slow protonation of carbon and low (photo)acidity of the NH2 group. The ESIPT was studied by irradiation of 2-(2-aminophenyl)naphthalene in CH3CN-D2O, whereupon regiospecific incorporation of deuterium takes place at the naphthalene position 1, with a quantum yield of Φ = 0.11. A synergy of experimental and computational investigations completely unraveled the mechanism of this important photochemical reaction. Upon excitation to the photoreactive S2(La) state, a favorable redistribution of charge sets the stage for ESIPT to the carbon atom in naphthalene position 1. H2O molecules are needed, as they increase the excitation energy and oscillator strength for the population of the S2(La) state. The gain in energy is used to surmount a small energy barrier on the pathway from the Franck-Condon geometry to the conical intersection with the S0, delivering aza-quinone methide.
Collapse
Affiliation(s)
- Josip Draženović
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Tomislav Rožić
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 København Ø, Denmark
| | - Nađa Došlić
- Department of Physical Chemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Nikola Basarić
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| |
Collapse
|
5
|
Cink RB, Zhou Y, Du L, Rahman MS, Phillips DL, Simpson MC, Seed AJ, Sampson P, Brasch NE. Mechanistic Insights into Rapid Generation of Nitroxyl from a Photocaged N-Hydroxysulfonamide Incorporating the (6-Hydroxynaphthalen-2-yl)methyl Chromophore. J Org Chem 2021; 86:8056-8068. [PMID: 34107217 DOI: 10.1021/acs.joc.1c00457] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
HNO is a highly reactive molecule that shows promise in treating heart failure. Molecules that rapidly release HNO with precise spatial and temporal control are needed to investigate the biology of this signaling molecule. (Hydroxynaphthalen-2-yl)methyl-photocaged N-hydroxysulfonamides are a new class of photoactive HNO generators. Recently, it was shown that a (6-hydroxynaphthalen-2-yl)methyl (6,2-HNM)-photocaged derivative of N-hydroxysulfonamide incorporating the trifluoromethanesulfonamidoxy group (1) quantitatively generates HNO. Mechanistic studies have now been carried out on this system and reveal that the ground state protonation state plays a key role in whether concerted heterolytic C-O/N-S bond cleavage to release HNO occurs versus undesired O-N bond cleavage. N-Deprotonation of 1 can be achieved by adding an aqueous buffer or a carboxylate salt to an aprotic solvent. Evidence is presented for C-O/N-S bond heterolysis occurring directly from the singlet excited state of the N-deprotonated parent molecule on the picosecond time scale, using femtosecond time-resolved transient absorption spectroscopy, to give a carbocation and 1NO-. This is consistent with the observation of significant fluorescence quenching when HNO is generated. The carbocation intermediate reacts rapidly with nucleophiles including water, MeOH, or even (H)NO in the absence of a molecule that reacts rapidly with (H)NO to give an oxime.
Collapse
Affiliation(s)
- Ruth B Cink
- School of Science, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand.,The Photon Factory, School of Chemical Sciences and Department of Physics, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.,The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6012, New Zealand.,The Dodd-Walls Centre for Quantum and Photonic Technologies, Dunedin 9054, New Zealand
| | - Yang Zhou
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
| | - Lili Du
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR 99077, P. R. China
| | - Mohammad S Rahman
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
| | - David Lee Phillips
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR 99077, P. R. China
| | - M Cather Simpson
- The Photon Factory, School of Chemical Sciences and Department of Physics, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.,The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6012, New Zealand.,The Dodd-Walls Centre for Quantum and Photonic Technologies, Dunedin 9054, New Zealand
| | - Alexander J Seed
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
| | - Paul Sampson
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
| | - Nicola E Brasch
- School of Science, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand.,The Dodd-Walls Centre for Quantum and Photonic Technologies, Dunedin 9054, New Zealand.,The Maurice Wilkins Centre for Molecular Biodiscovery, Auckland, New Zealand
| |
Collapse
|
6
|
Photoinduced double proton transfer in the glyoxal-methanol complex along T1 reaction path – a quantum chemical topological study. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
7
|
Photoinduced Double Proton Transfer in the Glyoxal-Methanol Complex Revisited: The Role of the Excited States. J Chem Theory Comput 2020; 16:3273-3286. [PMID: 32275423 DOI: 10.1021/acs.jctc.0c00007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Under irradiation in the visible range, the glyoxal-methanol complex in a cryogenic argon matrix undergoes a double proton transfer (DPT) reaction through which the glyoxal molecule isomerizes into hydroxyketene. In this work, we employ electronic structure simulations in order to shed more light on the underlying mechanism. Rewardingly, we find that the lowest singlet excited state (S1) of the complex acts as a gateway to two previously unknown isomerization pathways, of which one takes place entirely in the singlet manifold and the other also involves the lowest triplet state (T1). Both of these pathways are fully compatible with the available experimental data, implying that either or both are operative under experimental conditions. In either pathway, the methanol molecule acts as a proton shuttle between the proton-donating and proton-accepting sites of glyoxal, resulting in a dramatic lowering of the potential energy barrier to isomerization with respect to the case of isolated glyoxal. The occurrence of DPT in the singlet manifold is demonstrated directly with the use of nonadiabatic molecular dynamics simulations at the spin-flip time-dependent density functional theory level.
Collapse
|
8
|
Mena LD, Vera DMA, Baumgartner MT, Jimenez LB. Adiabatic deprotonation as an important competing pathway to ESIPT in photoacidic 2-phenylphenols. Phys Chem Chem Phys 2019; 21:12231-12240. [PMID: 31134981 DOI: 10.1039/c9cp02028d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
ESIPT (Excited State Intramolecular Proton Transfer) to C atom in 2-phenylphenol is known to be an intrinsically inefficient process. However, to the best of our knowledge, a structure-ESIPT efficiency relationship has not been elucidated yet. Here, we show that there exists a competitive interplay between photoacidity and ESIPT efficiency for the 2-phenylphenol system. The attachment of electron withdrawing groups to the phenol moiety promotes adiabatic deprotonation in the excited state and diminishes the charge transfer character of the excitations, and both these factors contribute in decreasing the ESIPT reaction yield. On the other hand, unfavorable conformational distribution in the ground state also appears as another important aspect responsible for the low ESIPT extent of 2-phenylphenol. A new derivative bearing electron donating, bulky substituents at ortho and para positions of the phenol ring shows an outstanding ESIPT performance, which demonstrates that the efficiency of the process can be significantly enhanced by modifying the substitution pattern. We anticipate that our results will help to guide the molecular designing of new compounds with high ESIPT efficiency.
Collapse
Affiliation(s)
- Leandro D Mena
- INFIQC, Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba Ciudad Universitaria, Córdoba, Argentina.
| | - D M A Vera
- QUIAMM-INBIOTEC-Departamento de Química, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Maria T Baumgartner
- INFIQC, Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba Ciudad Universitaria, Córdoba, Argentina.
| | - Liliana B Jimenez
- INFIQC, Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba Ciudad Universitaria, Córdoba, Argentina.
| |
Collapse
|
9
|
Bull JN, Silva GD, Scholz MS, Carrascosa E, Bieske EJ. Photoinitiated Intramolecular Proton Transfer in Deprotonated para-Coumaric Acid. J Phys Chem A 2019; 123:4419-4430. [DOI: 10.1021/acs.jpca.9b02023] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- James N. Bull
- School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia
- School of Chemistry, Norwich Research Park, University of East Anglia, Norwich NR4 7TJ, United Kingdom
| | - Gabriel da Silva
- Department of Chemical Engineering, University of Melbourne, Parkville, VIC 3010, Australia
| | - Michael S. Scholz
- School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia
| | - Eduardo Carrascosa
- School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia
| | - Evan J. Bieske
- School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia
| |
Collapse
|
10
|
Škalamera Đ, Antol I, Mlinarić-Majerski K, Vančik H, Phillips DL, Ma J, Basarić N. Ultrafast Adiabatic Photodehydration of 2-Hydroxymethylphenol and the Formation of Quinone Methide. Chemistry 2018; 24:9426-9435. [PMID: 29677402 DOI: 10.1002/chem.201801543] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Indexed: 12/13/2022]
Abstract
The photochemical reactivity of 2-hydroxymethylphenol (1) was investigated experimentally by photochemistry under cryogenic conditions, by detecting reactive intermediates by IR spectroscopy, and by using nanosecond and femtosecond transient absorption spectroscopic methods in solution at room temperature. In addition, theoretical studies were performed to facilitate the interpretation of the experimental results and also to simulate the reaction pathway to obtain a better understanding of the reaction mechanism. The main finding of this work is that photodehydration of 1 takes place in an ultrafast adiabatic photochemical reaction without any clear intermediate, delivering quinone methide (QM) in the excited state. Upon photoexcitation to a higher vibrational level of the singlet excited state, 1 undergoes vibrational relaxation leading to two photochemical pathways, one by which synchronous elimination of H2 O gives QM 2 in its S1 state and the other by which homolytic cleavage of the phenolic O-H bond produces a phenoxyl radical (S0 ). Both are ultrafast processes that occur within a picosecond. The excited state of QM 2 (S1 ) probably deactivates to S0 through a conical intersection to give QM 2 (S0 ), which subsequently delivers benzoxete 4. Elucidation of the reaction mechanisms for the photodehydration of phenols by which QMs are formed is important to tune the reactivity of QMs with DNA and proteins for the potential application of QMs in medicine as therapeutic agents.
Collapse
Affiliation(s)
- Đani Škalamera
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000, Zagreb, Croatia.,Department of Organic Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000, Zagreb, Croatia
| | - Ivana Antol
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000, Zagreb, Croatia
| | - Kata Mlinarić-Majerski
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000, Zagreb, Croatia
| | - Hrvoj Vančik
- Department of Organic Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000, Zagreb, Croatia
| | - David Lee Phillips
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong S.A.R., P.R. China
| | - Jiani Ma
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of, Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, P.R. China
| | - Nikola Basarić
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000, Zagreb, Croatia
| |
Collapse
|
11
|
Ma J, Zhang X, Basarić N, Phillips DL. Direct Observation of Photoinduced Ultrafast Generation of Singlet and Triplet Quinone Methides in Aqueous Solutions and Insight into the Roles of Acidic and Basic Sites in Quinone Methide Formation. J Am Chem Soc 2017; 139:18349-18357. [PMID: 29182856 DOI: 10.1021/jacs.7b10387] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Femtosecond time-resolved transient absorption spectroscopy experiments and density functional theory computations were done for a mechanistic investigation of 3-(1-phenylvinyl)phenol (1) and 3-hydroxybenzophenone (2) in selected solvents. Both compounds went through an intersystem crossing (ISC) to form the triplet excited states Tππ* and Tnπ* in acetonitrile but behave differently in neutral aqueous solutions, in which a triplet excited state proton transfer (ESPT) induced by the ISC process is also proposed for 2 but a singlet ESPT without ISC is proposed for 1, leading to the production of the triplet quinone methide (QM) and the singlet excited QM species respectively in these two systems. The triplet QM then underwent an ISC process to form an unstable ground state intermediate which soon returned to its starting material 2. However, the singlet excited state QM went through an internal conversion process to the ground state QM followed by the formation of its final product in an irreversible manner. These differences are thought to be derived from the slow vinyl C-C rotation and the moderate basicity of the vinyl C atom in 1 as compared with the fast C-O rotation and the greater basicity of the carbonyl O atom of 2 after photoexcitation. This can account for the experimental results in the literature that the aromatic vinyl compounds undergo efficient singlet excited state photochemical reactions while the aromatic carbonyl compounds prefer triplet photochemical reactions under aqueous conditions. These results have fundamental and significant implications for understanding of the ESPT reactivity in general, as well as for the design of molecules for efficient QM formation in aqueous media with potential applications in cancer phototherapy.
Collapse
Affiliation(s)
- Jiani Ma
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University , Xi'an, P. R. China
| | - Xiting Zhang
- Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong, P. R. China
| | - Nikola Basarić
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute , Bijenička cesta 54, 10 000 Zagreb, Croatia
| | - David Lee Phillips
- Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong, P. R. China
| |
Collapse
|
12
|
Novak J, Prlj A, Basarić N, Corminboeuf C, Došlić N. Photochemistry of 1- and 2-Naphthols and Their Water Clusters: The Role of1ππ*(La) Mediated Hydrogen Transfer to Carbon Atoms. Chemistry 2017; 23:8244-8251. [DOI: 10.1002/chem.201700691] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Jurica Novak
- Department of Physical Chemistry; Ruđer Bošković Institute; Bijenička cesta 54 10000 Zagreb Croatia
| | - Antonio Prlj
- Institut des Sciences et Ingénierie Chimiques; Ecole Polytechnique Fédérale de Lausanne; 1015 Lausanne Switzerland
| | - Nikola Basarić
- Department of Organic Chemistry and Biochemistry; Ruđer Bošković Institute; Bijenička cesta 54 10000 Zagreb Croatia
| | - Clémence Corminboeuf
- Institut des Sciences et Ingénierie Chimiques; Ecole Polytechnique Fédérale de Lausanne; 1015 Lausanne Switzerland
| | - Nađa Došlić
- Department of Physical Chemistry; Ruđer Bošković Institute; Bijenička cesta 54 10000 Zagreb Croatia
| |
Collapse
|
13
|
Mališ M, Došlić N. Nonradiative Relaxation Mechanisms of UV Excited Phenylalanine Residues: A Comparative Computational Study. Molecules 2017; 22:E493. [PMID: 28335582 PMCID: PMC6155328 DOI: 10.3390/molecules22030493] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 03/09/2017] [Accepted: 03/16/2017] [Indexed: 11/17/2022] Open
Abstract
The present work is directed toward understanding the mechanisms of excited state deactivation in three neutral model peptides containing the phenylalanine residue. The excited state dynamics of theγL(g+)folded form of N-acetylphenylalaninylamide (NAPA B) and its amide-N-methylated derivative (NAPMA B) is reviewed and compared to the dynamics of the monohydrated structure of NAPA (NAPAH). The goal is to unravel how the environment, and in particular solvation, impacts the photodynamics of peptides. The systems are investigated using reaction path calculations and surface hopping nonadiabatic dynamics based on the coupled cluster doubles (CC2) method and time-dependent density functional theory. The work emphasizes the role that excitation transfer from the phenylππ*to amidenπ*state plays in the deactivation of the three systems and shows how the ease of out-of-plane distortions of the amide group determines the rate of population transfer between the two electronic states. The subsequent dynamics on thenπ*state is barrierless along several pathways and leads to fast deactivation to the ground electronic state.
Collapse
Affiliation(s)
- Momir Mališ
- Ruđer Bošković Institute, HR-10000 Zagreb, Croatia.
- Ecole polytechnique fédérale de Lausanne, CH-1015 Lausanne, Switzerland.
| | - Nađa Došlić
- Ruđer Bošković Institute, HR-10000 Zagreb, Croatia.
| |
Collapse
|
14
|
Das A, Banerjee T, Hanson K. Protonation of silylenol ether via excited state proton transfer catalysis. Chem Commun (Camb) 2016; 52:1350-3. [PMID: 26502917 DOI: 10.1039/c5cc08081a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We demonstrate the photocatalytic protonation of a silylenol ether using 7-bromo-2-naphthol as an ESPT catalyst with phenol as the sacrificial proton source. Greater than 95% conversion is achieved with 1 mol% catalyst. The reaction cycle is dependent on the significantly increased acidity of the catalyst in the excited state as well as the long lifetime for the triplet excited state of 7-bromo-2-naphthol. The reaction does not occur in the absence of light (367 nm) and can readily be controlled by light intensity modulation. We also demonstrate that a 72% reaction yield can be obtained with unsubstituted naphthol as the catalyst by coupling triplet energy transfer, via a visible light absorbing (445 nm) sensitizer, into the catalytic cycle. These results open the door to an entirely new class of sensitized photocatalytic reactions that harness the excited state acidity of ESPT dyes.
Collapse
Affiliation(s)
- Anjan Das
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, USA.
| | - Tanmay Banerjee
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, USA.
| | - Kenneth Hanson
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, USA.
| |
Collapse
|
15
|
Doria F, Lena A, Bargiggia R, Freccero M. Conjugation, Substituent, and Solvent Effects on the Photogeneration of Quinone Methides. J Org Chem 2016; 81:3665-73. [DOI: 10.1021/acs.joc.6b00331] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Filippo Doria
- Dipartimento di Chimica, Università di Pavia, V.le Taramelli
10, 27100 Pavia, Italy
| | - Alberto Lena
- Dipartimento di Chimica, Università di Pavia, V.le Taramelli
10, 27100 Pavia, Italy
| | - Riccardo Bargiggia
- Dipartimento di Chimica, Università di Pavia, V.le Taramelli
10, 27100 Pavia, Italy
| | - Mauro Freccero
- Dipartimento di Chimica, Università di Pavia, V.le Taramelli
10, 27100 Pavia, Italy
| |
Collapse
|
16
|
Xia SH, Xie BB, Fang Q, Cui G, Thiel W. Excited-state intramolecular proton transfer to carbon atoms: nonadiabatic surface-hopping dynamics simulations. Phys Chem Chem Phys 2016; 17:9687-97. [PMID: 25711992 DOI: 10.1039/c5cp00101c] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Excited-state intramolecular proton transfer (ESIPT) between two highly electronegative atoms, for example, oxygen and nitrogen, has been intensely studied experimentally and computationally, whereas there has been much less theoretical work on ESIPT to other atoms such as carbon. We have employed CASSCF, MS-CASPT2, RI-ADC(2), OM2/MRCI, DFT, and TDDFT methods to study the mechanistic photochemistry of 2-phenylphenol, for which such an ESIPT has been observed experimentally. According to static electronic structure calculations, irradiation of 2-phenylphenol populates the bright S1 state, which has a rather flat potential in the Franck-Condon region (with a shallow enol minimum at the CASSCF level) and may undergo an essentially barrierless ESIPT to the more stable S1 keto species. There are two S1/S0 conical intersections that mediate relaxation to the ground state, one in the enol region and one in the keto region, with the latter one substantially lower in energy. After S1 → S0 internal conversion, the transient keto species can return back to the S0 enol structure via reverse ground-state hydrogen transfer in a facile tautomerization. This mechanistic scenario is verified by OM2/MRCI-based fewest-switches surface-hopping simulations that provide detailed dynamic information. In these trajectories, ESIPT is complete within 118 fs; the corresponding S1 excited-state lifetime is computed to be 373 fs in vacuum. Most of the trajectories decay to the ground state via the S1/S0 conical intersection in the keto region (67%), and the remaining ones via the enol region (33%). The combination of static electronic structure computations and nonadiabatic dynamics simulations is expected to be generally useful for understanding the mechanistic photophysics and photochemistry of molecules with intramolecular hydrogen bonds.
Collapse
Affiliation(s)
- Shu-Hua Xia
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China.
| | | | | | | | | |
Collapse
|
17
|
Guo WW, Liu XY, Chen WK, Cui G. Excited-state proton transfer in 4-2′-hydroxyphneylpyridine: full-dimensional surface-hopping dynamics simulations. RSC Adv 2016. [DOI: 10.1039/c6ra17827h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
We have employed combined electronic structure calculations and “on-the-fly” fewest switches surface-hopping dynamics simulations to study the S1 excited-state intramolecular proton transfer (ESIPT) and decay dynamics of 4-(2′-hydroxyphenyl)pyridine.
Collapse
Affiliation(s)
- Wei-Wei Guo
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Xiang-Yang Liu
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Wen-Kai Chen
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Ganglong Cui
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| |
Collapse
|
18
|
Yang Y, Liu Y, Yang D, Li H, Jiang K, Sun J. Photoinduced excited state intramolecular proton transfer and spectral behaviors of Aloesaponarin 1. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 151:814-820. [PMID: 26172469 DOI: 10.1016/j.saa.2015.07.046] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 06/14/2015] [Accepted: 07/07/2015] [Indexed: 06/04/2023]
Abstract
The novel spectral behaviors of Aloesaponarin 1 (AS1) are investigated by studying the dynamics process of excited state intramolecular proton transfer (ESIPT). Two intramolecular hydrogen bonds (HB1 and HB2) are formed between hydroxyl and carbonyl groups of AS1. The calculated potential energy curves of AS1 demonstrate that the ESIPT process along HB1 is energy favorable while not along HB2. The analysis of potential energy curves describes clearly the dynamic behaviors of the proton transfer process from hydroxyl group to carbonyl group along HB1. The infrared spectra of AS1 confirm that the stretching absorption peak of hydroxyl group in HB1 disappears and that a new peak corresponding to hydroxyl group appears in the first excited state, which depicts the ESIPT process indirectly. The fluorescence peaks of AS1 (636nm), AS2 (Aloesaponarin 1 3-O-methyl ether, 629 nm) and AS3 (Aloesaponarin 1 8-O-methyl ether, 522 nm) demonstrate that the fluorescence behavior of AS1 is primarily effected by HB1 rather than HB2. The large Stokes shifts of AS1 (206 nm) indicate that the absorbed energy is partly transferred to non-harmful long fluorescence through ESIPT process, which plays important role in the explanation for the UV protection property of AS1. The inducement and influence factors of ESIPT process of AS1 are illustrated by analyzing electrostatic potential, molecular orbital and natural bond orbital.
Collapse
Affiliation(s)
- Yonggang Yang
- College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007, China
| | - Yufang Liu
- College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007, China.
| | - Dapeng Yang
- Physics Laboratory, North China University of Water Resources and Electric Power, Zhengzhou 450045, China
| | - Hui Li
- College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007, China
| | - Kai Jiang
- College of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453007, China
| | - Jinfeng Sun
- College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007, China
| |
Collapse
|
19
|
Lukeman M, Simon H, Wan P, Wang YH. Photocyclization and Photoaddition Reactions of Arylphenols via Intermediate Quinone Methides. J Org Chem 2015; 80:11281-93. [PMID: 26496171 DOI: 10.1021/acs.joc.5b01580] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A series of five benzannelated derivatives of 2-phenylphenol were prepared, and their photochemistry was investigated. Two of these (3-phenyl-2-naphthol, 10, and 1-phenyl-2-naphthol, 11) were photoinert. For 2-(1-naphthyl)phenol (12) and 1-(1-naphthyl)-2-naphthol (13), ESPT took place to either the 2'-position or the 7'-position of the naphthalene ring to give quinone methides (QMs) that underwent either reverse proton transfer (RPT) or electrocyclic ring closure to give dihydrobenzoxanthenes. The intermediate QMs for 12 and 13 were detected and characterized by laser flash photolysis. For 2-(9-phenanthryl)phenol (14), ESPT took place either to the 5'-position to give a QM that underwent quantitative electrocyclic ring closure to give the corresponding benzoxanthene or to the 10'-position to give a QM that underwent RPT. If the solution contained methanol, the QM produced on ESPT to the 10'-position in 14 could be trapped as the photoaddition product. The compounds studied in this work demonstrate three possible reactions of QMs produced following ESPT to aromatic carbon atoms: (1) reverse proton transfer (RPT) to regenerate starting material; (2) addition of hydroxylic solvents to give the photoaddition product; and (3) electrocyclic ring closure to give benzoxanthene derivatives.
Collapse
Affiliation(s)
- Matthew Lukeman
- Department of Chemistry, Acadia University , 6 University Ave., Wolfville, NS, B4P 2R6, Canada
| | - Hilary Simon
- Department of Chemistry, Acadia University , 6 University Ave., Wolfville, NS, B4P 2R6, Canada
| | - Peter Wan
- Department of Chemistry, University of Victoria , Box 3065 Stn CSC, Victoria, BC, V8W 3V6, Canada
| | - Yu-Hsuan Wang
- Department of Chemistry, University of Victoria , Box 3065 Stn CSC, Victoria, BC, V8W 3V6, Canada
| |
Collapse
|
20
|
Škalamera Đ, Bohne C, Landgraf S, Basarić N. Photodeamination Reaction Mechanism in Aminomethyl p-Cresol Derivatives: Different Reactivity of Amines and Ammonium Salts. J Org Chem 2015; 80:10817-28. [PMID: 26461794 DOI: 10.1021/acs.joc.5b01991] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Derivatives of p-cresol 1-4 were synthesized, and their photochemical reactivity, acid-base, and photophysical properties were investigated. The photoreactivity of amines 1 and 3 is different from that for the corresponding ammonium salts 2 and 4. All compounds have low fluorescence quantum yields because the excited states undergo deamination reactions, and for all cresols the formation of quinone methides (QMs) was observed by laser flash photolysis. The reactivity observed is a consequence of the higher acidity of the S1 states of these p-cresols and the ability for excited-state intramolecular proton transfer (ESIPT) to occur in the case of 1 and 3, but not for salts 2 and 4. In aqueous solvent, deamination depends largely on the prototropic form of the molecule. The most efficient deamination takes place when monoamine is in the zwitterionic form (pH 9-11) or diamine is in the monocationic form (pH 7-9). QM1, QM3, and QM4 react with nucleophiles, and QM1 exhibits a shorter lifetime when formed from 1 (τ in CH3CN = 5 ms) than from 2 (τ in CH3CN = 200 ms) due to the reaction with eliminated dimethylamine, which acts as a nucleophile in the case of QM1. Bifunctional QM4 undergoes two types of reactions with nucleophiles, giving adducts or new QM species. The mechanistic diversity uncovered is of significance to biological systems, such as for the use of bifunctional QMs to achieve DNA cross-linking.
Collapse
Affiliation(s)
- Đani Škalamera
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute , Bijenička cesta 54, 10 000 Zagreb, Croatia
| | - Cornelia Bohne
- Department of Chemistry, University of Victoria , Box 3065 STN CSC, Victoria, BC V8W 3 V6, Canada
| | - Stephan Landgraf
- Institute of Physical and Theoretical Chemistry, Graz University of Technology , Stremayrgasse 9, A-8010 Graz, Austria
| | - Nikola Basarić
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute , Bijenička cesta 54, 10 000 Zagreb, Croatia
| |
Collapse
|
21
|
Chaiwongwattana S, Sapunar M, Ponzi A, Decleva P, Došlić N. Exploration of Excited State Deactivation Pathways of Adenine Monohydrates. J Phys Chem A 2015; 119:10637-44. [DOI: 10.1021/acs.jpca.5b07496] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | - Marin Sapunar
- Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
| | - Aurora Ponzi
- Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
| | - Piero Decleva
- Dipartimento di
Scienze Chimiche, Università di Trieste, 34127 Trieste, Italy
| | - Nađa Došlić
- Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
| |
Collapse
|
22
|
Ma J, Zhang X, Basarić N, Wan P, Phillips DL. Observation of excited state proton transfer reactions in 2-phenylphenol and 2-phenyl-1-naphthol and formation of quinone methide species. Phys Chem Chem Phys 2015; 17:9205-11. [PMID: 25760013 DOI: 10.1039/c4cp05061d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The excited state intramolecular proton transfer (ESIPT) reactions from a phenol (naphthol) to a carbon atom in the adjacent aromatic ring of 2-phenylphenol (1) and 2-phenyl-1-naphthol (4) are prototypical examples of intramolecular proton transfer not mediated by solvent molecules. Femtosecond time-resolved transient absorption (fs-TA) studies are conducted for the first time to directly probe the formation of quinone methide (QM) species generated from the ESIPT pathways of 1 and 4. Steady-state absorption experiments demonstrated 1 exists mainly in its non-deprotonated form in neat MeCN and in water-MeCN solutions. Observation of the phenolate form in water-containing solution (MeCN-H2O, 1 : 1, v : v) in fluorescence spectra demonstrates the occurrence of an ESPT reaction between 1 and the surrounding water molecules. In neat MeCN a transient species that absorbs around 520 nm was detected in fs-TA spectra and was assigned to the QM species formed by ESIPT to the 2'-position. This transient signal is strengthened in cyclohexane. In a water-MeCN solution, an additional transient species assigned to the QM species at the 4'-position of 1 was also detected that absorbs around 485 nm. Similar results for 4 were observed, with the absorbance of the transient species being more intense, which suggests there is more efficient production of the QM species from 4, consistent with quantum yields for deuterium exchange in the distal ring reported for these compounds.
Collapse
Affiliation(s)
- Jiani Ma
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, P. R. China
| | | | | | | | | |
Collapse
|
23
|
Photophysics of cyanophenylpyrroles: Investigation of solvatochromic properties and charge transfer by ultrafast spectroscopy and DFT calculations. J Photochem Photobiol A Chem 2015. [DOI: 10.1016/j.jphotochem.2014.11.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
24
|
Tzeli D, Tsoungas PG, Petsalakis ID, Kozielewicz P, Zloh M. Intramolecular cyclization of β-nitroso-o-quinone methides. A theoretical endoscopy of a potentially useful innate ‘reclusive’ reaction. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.11.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
25
|
β-Nitroso-o-quinone methides: potent intermediates in organic chemistry and biology. The impact of the NO group on their structure and reactivity profile: a theoretical insight. Struct Chem 2014. [DOI: 10.1007/s11224-014-0454-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
26
|
Rosenberg M, Dahlstrand C, Kilså K, Ottosson H. Excited State Aromaticity and Antiaromaticity: Opportunities for Photophysical and Photochemical Rationalizations. Chem Rev 2014; 114:5379-425. [DOI: 10.1021/cr300471v] [Citation(s) in RCA: 272] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Martin Rosenberg
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Christian Dahlstrand
- Department
of Chemistry - BMC, Uppsala University, Box 576, 751 23 Uppsala, Sweden
| | - Kristine Kilså
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Henrik Ottosson
- Department
of Chemistry - BMC, Uppsala University, Box 576, 751 23 Uppsala, Sweden
| |
Collapse
|
27
|
Gao F, Wang X, Li H, Ye X. New two-photon absorption organic chromophores containing imino and hydroxyl groups: synthesis, ESIPT and chemosensors. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.04.121] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
28
|
Wang YH, Wan P. Solvent-dependent excited state intramolecular proton transfer (ESIPT) pathways from phenol to carbon in 2,5-dihydroxyphenyl arenes. Photochem Photobiol Sci 2013; 12:1571-88. [DOI: 10.1039/c3pp50091h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
29
|
Mališ M, Loquais Y, Gloaguen E, Biswal HS, Piuzzi F, Tardivel B, Brenner V, Broquier M, Jouvet C, Mons M, Došlić N, Ljubić I. Unraveling the Mechanisms of Nonradiative Deactivation in Model Peptides Following Photoexcitation of a Phenylalanine Residue. J Am Chem Soc 2012; 134:20340-51. [DOI: 10.1021/ja3054942] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Momir Mališ
- Division
of Physical Chemistry, Ruđer Bošković Institute, Bijenička
cesta 54, HR-10002 Zagreb, Croatia
| | - Yohan Loquais
- CEA, IRAMIS, SPAM, Lab. Francis
Perrin, URA 2453, CEA-Saclay, Bât
522, Gif-sur-Yvette, F-91191, France
- CNRS, INC & INP, Lab. Francis Perrin, URA 2453, CEA-Saclay, Bât 522, Gif-sur-Yvette, F-91191, France
| | - Eric Gloaguen
- CEA, IRAMIS, SPAM, Lab. Francis
Perrin, URA 2453, CEA-Saclay, Bât
522, Gif-sur-Yvette, F-91191, France
- CNRS, INC & INP, Lab. Francis Perrin, URA 2453, CEA-Saclay, Bât 522, Gif-sur-Yvette, F-91191, France
| | - Himansu S. Biswal
- CEA, IRAMIS, SPAM, Lab. Francis
Perrin, URA 2453, CEA-Saclay, Bât
522, Gif-sur-Yvette, F-91191, France
- CNRS, INC & INP, Lab. Francis Perrin, URA 2453, CEA-Saclay, Bât 522, Gif-sur-Yvette, F-91191, France
| | - François Piuzzi
- CEA, IRAMIS, SPAM, Lab. Francis
Perrin, URA 2453, CEA-Saclay, Bât
522, Gif-sur-Yvette, F-91191, France
- CNRS, INC & INP, Lab. Francis Perrin, URA 2453, CEA-Saclay, Bât 522, Gif-sur-Yvette, F-91191, France
| | - Benjamin Tardivel
- CEA, IRAMIS, SPAM, Lab. Francis
Perrin, URA 2453, CEA-Saclay, Bât
522, Gif-sur-Yvette, F-91191, France
- CNRS, INC & INP, Lab. Francis Perrin, URA 2453, CEA-Saclay, Bât 522, Gif-sur-Yvette, F-91191, France
| | - Valérie Brenner
- CEA, IRAMIS, SPAM, Lab. Francis
Perrin, URA 2453, CEA-Saclay, Bât
522, Gif-sur-Yvette, F-91191, France
- CNRS, INC & INP, Lab. Francis Perrin, URA 2453, CEA-Saclay, Bât 522, Gif-sur-Yvette, F-91191, France
| | - Michel Broquier
- Université Paris-Sud 11, CLUPS / CNRS, LUMAT FR 2764, Bât
106, Orsay, F-91405, France
- CNRS, Université Paris-Sud 11, ISMO, UMR 8624, Bât 210, Orsay,
F-91405, France
| | - Christophe Jouvet
- Université Paris-Sud 11, CLUPS / CNRS, LUMAT FR 2764, Bât
106, Orsay, F-91405, France
- CNRS, Université Paris-Sud 11, ISMO, UMR 8624, Bât 210, Orsay,
F-91405, France
| | - Michel Mons
- CEA, IRAMIS, SPAM, Lab. Francis
Perrin, URA 2453, CEA-Saclay, Bât
522, Gif-sur-Yvette, F-91191, France
- CNRS, INC & INP, Lab. Francis Perrin, URA 2453, CEA-Saclay, Bât 522, Gif-sur-Yvette, F-91191, France
| | - Nađa Došlić
- Division
of Physical Chemistry, Ruđer Bošković Institute, Bijenička
cesta 54, HR-10002 Zagreb, Croatia
| | - Ivan Ljubić
- Division
of Physical Chemistry, Ruđer Bošković Institute, Bijenička
cesta 54, HR-10002 Zagreb, Croatia
| |
Collapse
|
30
|
Basarić N, Došlić N, Ivković J, Wang YH, Veljković J, Mlinarić-Majerski K, Wan P. Excited State Intramolecular Proton Transfer (ESIPT) from Phenol to Carbon in Selected Phenylnaphthols and Naphthylphenols. J Org Chem 2012; 78:1811-23. [DOI: 10.1021/jo301456y] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Nikola Basarić
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta
54, 10000 Zagreb, Croatia
| | - Nađa Došlić
- Department of Physical Chemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb,
Croatia
| | - Jakov Ivković
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta
54, 10000 Zagreb, Croatia
| | - Yu-Hsuan Wang
- Department of Chemistry, University of Victoria, Box 3065 Stn CSC, Victoria
BC, V8W 3 V6, Canada
| | - Jelena Veljković
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta
54, 10000 Zagreb, Croatia
| | - Kata Mlinarić-Majerski
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta
54, 10000 Zagreb, Croatia
| | - Peter Wan
- Department of Chemistry, University of Victoria, Box 3065 Stn CSC, Victoria
BC, V8W 3 V6, Canada
| |
Collapse
|