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Marceca E, Noble JA, Dedonder-Lardeux C, Jouvet C. Loss of CO 2 from Monodeprotonated Phthalic Acid upon Photodissociation and Dissociative Electron Detachment. J Phys Chem A 2021; 125:7406-7413. [PMID: 34415759 DOI: 10.1021/acs.jpca.1c04854] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The decarboxylation (CO2 loss) mechanism of cold monodeprotonated phthalic acid was studied in a photodissociation action spectrometer by quantifying mass-selected product anions and neutral particles as a function of the excitation energy. The analysis proceeded by interpreting the translational energy distribution of the generated uncharged products, and with the help of quantum calculations. In particular, this study reveals different fragmentation pathways in the deprotonated anion and in the radical generated upon electron photodetachment. Unlike the behavior found in other deprotonated aryl carboxylic acids, which do not fragment in the anion excited state, a double loss of CO2 molecules takes place in the phthalic monoanion. Moreover, at higher excitation energies the phthalic monoanion experiences decarboxylative photodetachment with a statistical distribution of product translational energies, which contrasts with the impulsive dissociation reactions characteristic of other aryl carboxylic anions.
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Affiliation(s)
- Ernesto Marceca
- INQUIMAE (CONICET-Universidad de Buenos Aires), DQIAQF (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria), 3er piso, Pab. II, 1428 Buenos Aires, Argentina
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3
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Dezalay J, Broquier M, Soorkia S, Hirata K, Ishiuchi SI, Fujii M, Grégoire G. Excited-state proton transfer in protonated adrenaline revealed by cryogenic UV photodissociation spectroscopy. Phys Chem Chem Phys 2020; 22:11498-11507. [PMID: 32393956 DOI: 10.1039/d0cp01127d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We report a comprehensive study of the structures and deactivation processes of protonated adrenaline through cryogenic UV photodissociation spectroscopy. Single UV and double-resonance UV-UV hole burning spectroscopies have been performed and compared to coupled-cluster SCS-CC2 calculations performed on the ground and first electronic states. Three conformers were assigned, two lowest energy gauche conformers along with a higher energy conformer with an extended structure which is indeed the global minimum in solution. This demonstrates the kinetic trapping of this high energy gas phase conformer during the electrospray process. At the band origin of all conformers, the main fragmentation channel is the Cα-Cβ bond cleavage, triggered by an excited state proton transfer to the catechol ring. Internal conversion leading to the water loss channel competes with the direct dissociation and tends to prevail with the increase of excess energy brought by the UV laser. Picosecond time-resolved pump-probe spectroscopy was performed to measure the excited state lifetimes of the three conformers of AdH+, which decay with the increase of excess energy in the ππ* state, from 2 ns at the band origin down to few hundreds of picoseconds 0.5 eV to the blue. Finally, about 0.8 eV above the band origin, the πσ* state is directly reached, leading to the opening of the H-loss channel.
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Affiliation(s)
- Jordan Dezalay
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, F-91405 Orsay, France.
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Shi Y, Zhou M, Zhang K, Ma L, Kong X. Chiral Differentiation of Non-Covalent Diastereomers Based on Multichannel Dissociation Induced by 213-nm Ultraviolet Photodissociation. J Am Soc Mass Spectrom 2019; 30:2297-2305. [PMID: 31410655 DOI: 10.1007/s13361-019-02302-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 07/10/2019] [Accepted: 07/23/2019] [Indexed: 06/10/2023]
Abstract
Here we present the implementation of 213-nm ultraviolet photodissociation (UVPD) in a FT-ICR mass spectrometer for chiral differentiation in the gas phase. The L/D amino acid-substituted serine octamer ions were selected as examples of diastereoisomers for chiral analysis. Several kinds of fragment ions were observed in these experiments, including fragment ions that are similar to the ones observed in corresponding collision-activated dissociation (CAD) experiments, fragment ions generated with different protonation sites by only destroying non-covalent bonds, and unique non-covalent cluster radical ions. The latter two kinds of fragment ions are found to be more sensitive to the chirality of the substituted units. Further experiments suggest that the formation of radical ions is mainly affected by chromophores on side chains of the substituted units and micro surroundings of the characterized non-covalent diastereoisomers. A comparing experiment performed by only changing the wavelength of UV laser to 266 nm shows that the 213-nm UV laser has the priority in the diversity of fragmentation pathways and potential of further application in chiral differentiation experiments.
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Affiliation(s)
- Yingying Shi
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
| | - Min Zhou
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
- Department of Physics, Anhui Normal University, Wuhu, 241000, People's Republic of China
| | - Kailin Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China
| | - Lifu Ma
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China
| | - Xianglei Kong
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China.
- Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China.
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Mukherjee S, Fang M, Kok WM, Kapp EA, Thombare VJ, Huguet R, Hutton CA, Reid GE, Roberts BR. Establishing Signature Fragments for Identification and Sequencing of Dityrosine Cross-Linked Peptides Using Ultraviolet Photodissociation Mass Spectrometry. Anal Chem 2019; 91:12129-12133. [DOI: 10.1021/acs.analchem.9b02986] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Soumya Mukherjee
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Mengxuan Fang
- School of Chemistry, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, 3010, Australia
| | - W. Mei Kok
- University of Queensland, Institute for Molecular Bioscience, Brisbane, Queensland 4072, Australia
| | - Eugene A. Kapp
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Varsha J. Thombare
- School of Chemistry, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, 3010, Australia
| | - Romain Huguet
- Thermo Fisher Scientific, San Jose, California 95134, United States
| | - Craig A. Hutton
- School of Chemistry, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, 3010, Australia
| | - Gavin E. Reid
- School of Chemistry, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, 3010, Australia
- Department of Biochemistry and Molecular Biology, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Blaine R. Roberts
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, Victoria 3010, Australia
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Affiliation(s)
- Satchin Soorkia
- Institut des Sciences Moléculaires d’Orsay (ISMO), CNRS, Univ. Paris-Sud, Université Paris-Saclay, F-91405 Orsay, France
| | - Christophe Jouvet
- CNRS, Aix Marseille Université, PIIM UMR 7345, 13397, Marseille, France
| | - Gilles Grégoire
- Institut des Sciences Moléculaires d’Orsay (ISMO), CNRS, Univ. Paris-Sud, Université Paris-Saclay, F-91405 Orsay, France
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Ben Nasr F, Alata I, Scuderi D, Lepère V, Brenner V, Jaïdane NE, Zehnacker A. Effects of complexation with sulfuric acid on the photodissociation of protonated Cinchona alkaloids in the gas phase. Phys Chem Chem Phys 2019; 21:15439-15451. [PMID: 31257399 DOI: 10.1039/c9cp01518c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of complexation with sulfuric acid on the photo-dissociation of protonated Cinchona alkaloids, namely cinchonidine (Cd), quinine (Qn) and quinidine (Qd), is studied by combining laser spectroscopy with quantum chemical calculations. The protonated complexes are structurally characterized in a room-temperature ion trap by means of infra-red multiple photon dissociation (IRMPD) spectroscopy in the fingerprint and the ν(XH) (X = C, N, O) stretch regions. Comparison with density functional theory calculations including dispersion (DFT-D) unambiguously shows that the complex consists of a doubly protonated Cinchona alkaloid strongly bound to a bisulfate HSO4- anion, which bridges the two protonated sites of the Cinchona alkaloid. UV excitation of the complex does not induce loss of specific photo fragments, in contrast to the protonated monomer or dimer, for which photo-specific fragments were observed. Indeed the UV-induced fragmentation pattern is identical to that observed in collision-induced dissociation experiments. Analysis of the nature of the first electronic transitions at the second order approximate coupled-cluster level (CC2) explains the difference in the behavior of the complex relative to the monomer or dimer towards UV excitation.
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Affiliation(s)
- Feriel Ben Nasr
- Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS, Univ. Paris-Sud, Université Paris-Saclay, F-91405 Orsay, France. and Laboratoire de Spectroscopie Atomique, Moléculaire et Applications (LSAMA) Université de Tunis El Manar, LSAMA, Tunis 1060, Tunisia
| | - Ivan Alata
- Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS, Univ. Paris-Sud, Université Paris-Saclay, F-91405 Orsay, France.
| | - Debora Scuderi
- Univ. Paris-Sud, Laboratoire de Chimie Physique, UMR 8000, and CNRS, Orsay, F-91405, France
| | - Valeria Lepère
- Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS, Univ. Paris-Sud, Université Paris-Saclay, F-91405 Orsay, France.
| | | | - Nejm-Eddine Jaïdane
- Laboratoire de Spectroscopie Atomique, Moléculaire et Applications (LSAMA) Université de Tunis El Manar, LSAMA, Tunis 1060, Tunisia
| | - Anne Zehnacker
- Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS, Univ. Paris-Sud, Université Paris-Saclay, F-91405 Orsay, France.
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Pino GA, Jara-Toro RA, Aranguren-Abrate JP, Dedonder-Lardeux C, Jouvet C. Dissociative photodetachment vs. photodissociation of aromatic carboxylates: the benzoate and naphthoate anions. Phys Chem Chem Phys 2019; 21:1797-1804. [DOI: 10.1039/c8cp07162d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photodetachment leads to a stable radical and to dissociation. Both processes are characterized by the kinetic energy release of the neutral particles.
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Affiliation(s)
- Gustavo A. Pino
- INFIQC: Instituto de Investigaciones en Fisicoquímica de Córdoba (CONICET-UNC)
- Haya de la Torre y Medina Allende
- Ciudad Universitaria
- X5000HUA Córdoba
- Argentina
| | - Rafael A. Jara-Toro
- INFIQC: Instituto de Investigaciones en Fisicoquímica de Córdoba (CONICET-UNC)
- Haya de la Torre y Medina Allende
- Ciudad Universitaria
- X5000HUA Córdoba
- Argentina
| | - Juan P. Aranguren-Abrate
- Physique des Interactions Ioniques et Moléculaires (PIIM)
- UMR-CNRS 7345
- Aix-Marseille Université
- Avenue Escadrille Normandie-Niémen
- 13397 Marseille Cedex 20
| | - Claude Dedonder-Lardeux
- Physique des Interactions Ioniques et Moléculaires (PIIM)
- UMR-CNRS 7345
- Aix-Marseille Université
- Avenue Escadrille Normandie-Niémen
- 13397 Marseille Cedex 20
| | - Christophe Jouvet
- Physique des Interactions Ioniques et Moléculaires (PIIM)
- UMR-CNRS 7345
- Aix-Marseille Université
- Avenue Escadrille Normandie-Niémen
- 13397 Marseille Cedex 20
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Nguyen DT, Fujihara A. Chiral Recognition in Cold Gas-Phase Cluster Ions of Carbohydrates and Tryptophan Probed by Photodissociation. ORIGINS LIFE EVOL B 2018; 48:395-406. [PMID: 30953250 DOI: 10.1007/s11084-019-09574-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 03/19/2019] [Indexed: 12/20/2022]
Abstract
Chiral recognition between tryptophan (Trp) and carbohydrates such as D-glucose (D-Glc), methyl-α-D-glucoside (D-glucoside), D-maltose, and D-cellobiose in cold gas-phase cluster ions was investigated as a model for chemical evolution in interstellar molecular clouds using a tandem mass spectrometer containing a cold ion trap. The photodissociation mass spectra of cold gas-phase clusters that contained Na+, Trp enantiomers, and D-maltose showed that Na+(D-Glc) was formed via the glycosidic bond cleavage of D-maltose from photoexcited homochiral Na+(D-Trp)(D-maltose), while the dissociation did not occur in heterochiral Na+(L-Trp)(D-maltose). The enantiomer-selective dissociation was also observed in the case of D-cellobiose. The enantiomer-selective glycosidic bond cleavage of disaccharides suggested that photoexcited D-Trp could prevent chemical evolution of sugar chains from D-enantiomer of carbohydrates in molecular clouds. The spectra of gas-phase clusters that contained Na+, Trp enantiomers, and D-Glc indicated that enantiomer-selective protonation of L-Trp from D-Glc could induce enantiomeric excess via collision-activated dissociation of the protonated L-Trp. In the case of protonated clusters, photoexcited H+(L-Trp) dissociated via Cα-Cβ bond cleavage in the presence of D-Glc or D-glucoside, where the excited states of H+(L-Trp) contributed to the enantiomer-selective reaction in the clusters. These enantiomer selectivities in cold gas-phase clusters indicated that chirality of a molecule induced enantiomeric excess of other molecules via enantiomer-selective reactions in molecular clouds.
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Affiliation(s)
- Doan Thuc Nguyen
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Osaka, 599-8531, Japan
| | - Akimasa Fujihara
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Osaka, 599-8531, Japan.
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Fujihara A, Okawa Y. Chiral and molecular recognition of monosaccharides by photoexcited tryptophan in cold gas-phase noncovalent complexes as a model for chemical evolution in interstellar molecular clouds. Anal Bioanal Chem 2018; 410:6279-6287. [DOI: 10.1007/s00216-018-1238-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 06/18/2018] [Accepted: 06/28/2018] [Indexed: 12/14/2022]
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Mackie M, Rüther P, Samodova D, Di Gianvincenzo F, Granzotto C, Lyon D, Peggie DA, Howard H, Harrison L, Jensen LJ, Olsen JV, Cappellini E. Palaeoproteomic Profiling of Conservation Layers on a 14th Century Italian Wall Painting. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201713020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Meaghan Mackie
- Natural History Museum of Denmark; University of Copenhagen; Øster Voldgade 5-7 1350 Copenhagen Denmark
- Proteomics Program, Novo Nordisk Foundation Center for Protein Research, Faculty of Health Science; University of Copenhagen; Blegdamsvej 3b 2200 Copenhagen Denmark
| | - Patrick Rüther
- Proteomics Program, Novo Nordisk Foundation Center for Protein Research, Faculty of Health Science; University of Copenhagen; Blegdamsvej 3b 2200 Copenhagen Denmark
| | - Diana Samodova
- Proteomics Program, Novo Nordisk Foundation Center for Protein Research, Faculty of Health Science; University of Copenhagen; Blegdamsvej 3b 2200 Copenhagen Denmark
| | - Fabiana Di Gianvincenzo
- Natural History Museum of Denmark; University of Copenhagen; Øster Voldgade 5-7 1350 Copenhagen Denmark
| | - Clara Granzotto
- Natural History Museum of Denmark; University of Copenhagen; Øster Voldgade 5-7 1350 Copenhagen Denmark
| | - David Lyon
- Disease Systems Biology Program, Novo Nordisk Foundation Center for Protein Research; Faculty of Health Science; University of Copenhagen; Blegdamsvej 3b 2200 Copenhagen Denmark
| | - David A. Peggie
- Scientific Department; National Gallery London; Trafalgar Square London WC2N 5DN UK
| | - Helen Howard
- Scientific Department; National Gallery London; Trafalgar Square London WC2N 5DN UK
| | - Lynne Harrison
- Conservation Department; National Gallery London; Trafalgar Square London WC2N 5DN UK
| | - Lars Juhl Jensen
- Disease Systems Biology Program, Novo Nordisk Foundation Center for Protein Research; Faculty of Health Science; University of Copenhagen; Blegdamsvej 3b 2200 Copenhagen Denmark
| | - Jesper V. Olsen
- Proteomics Program, Novo Nordisk Foundation Center for Protein Research, Faculty of Health Science; University of Copenhagen; Blegdamsvej 3b 2200 Copenhagen Denmark
| | - Enrico Cappellini
- Natural History Museum of Denmark; University of Copenhagen; Øster Voldgade 5-7 1350 Copenhagen Denmark
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Mackie M, Rüther P, Samodova D, Di Gianvincenzo F, Granzotto C, Lyon D, Peggie DA, Howard H, Harrison L, Jensen LJ, Olsen JV, Cappellini E. Palaeoproteomic Profiling of Conservation Layers on a 14th Century Italian Wall Painting. Angew Chem Int Ed Engl 2018; 57:7369-7374. [PMID: 29603563 PMCID: PMC6032867 DOI: 10.1002/anie.201713020] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 03/08/2018] [Indexed: 01/24/2023]
Abstract
Ahead of display, a non-original layer was observed on the surface of a fragment of a wall painting by Ambrogio Lorenzetti (active 1319, died 1348/9). FTIR analysis suggested proteinaceous content. Mass spectrometry was used to better characterise this layer and revealed two protein components: sheep and cow glue and chicken and duck egg white. Analysis of post-translational modifications detected several photo-oxidation products, which suggest that the egg experienced prolonged exposure to UV light and was likely applied long before the glue layer. Additionally, glycation products detected may indicate naturally occurring glycoprotein degradation or reaction with a carbohydrate material such as starch, identified by ATR-FTIR in a cross-section of a sample taken from the painting. Palaeoproteomics is shown to provide detailed characterisation of organic layers associated with mural paintings and therefore aids reconstruction of the conservation history of these objects.
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Affiliation(s)
- Meaghan Mackie
- Natural History Museum of DenmarkUniversity of CopenhagenØster Voldgade 5–71350CopenhagenDenmark
- Proteomics Program, Novo Nordisk Foundation Center for Protein Research, Faculty of Health ScienceUniversity of CopenhagenBlegdamsvej 3b2200CopenhagenDenmark
| | - Patrick Rüther
- Proteomics Program, Novo Nordisk Foundation Center for Protein Research, Faculty of Health ScienceUniversity of CopenhagenBlegdamsvej 3b2200CopenhagenDenmark
| | - Diana Samodova
- Proteomics Program, Novo Nordisk Foundation Center for Protein Research, Faculty of Health ScienceUniversity of CopenhagenBlegdamsvej 3b2200CopenhagenDenmark
| | - Fabiana Di Gianvincenzo
- Natural History Museum of DenmarkUniversity of CopenhagenØster Voldgade 5–71350CopenhagenDenmark
| | - Clara Granzotto
- Natural History Museum of DenmarkUniversity of CopenhagenØster Voldgade 5–71350CopenhagenDenmark
| | - David Lyon
- Disease Systems Biology Program, Novo Nordisk Foundation Center for Protein ResearchFaculty of Health ScienceUniversity of CopenhagenBlegdamsvej 3b2200CopenhagenDenmark
| | - David A. Peggie
- Scientific DepartmentNational Gallery LondonTrafalgar SquareLondonWC2N 5DNUK
| | - Helen Howard
- Scientific DepartmentNational Gallery LondonTrafalgar SquareLondonWC2N 5DNUK
| | - Lynne Harrison
- Conservation DepartmentNational Gallery LondonTrafalgar SquareLondonWC2N 5DNUK
| | - Lars Juhl Jensen
- Disease Systems Biology Program, Novo Nordisk Foundation Center for Protein ResearchFaculty of Health ScienceUniversity of CopenhagenBlegdamsvej 3b2200CopenhagenDenmark
| | - Jesper V. Olsen
- Proteomics Program, Novo Nordisk Foundation Center for Protein Research, Faculty of Health ScienceUniversity of CopenhagenBlegdamsvej 3b2200CopenhagenDenmark
| | - Enrico Cappellini
- Natural History Museum of DenmarkUniversity of CopenhagenØster Voldgade 5–71350CopenhagenDenmark
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DeBlase AF, Harrilal CP, Lawler JT, Burke NL, McLuckey SA, Zwier TS. Conformation-Specific Infrared and Ultraviolet Spectroscopy of Cold [YAPAA+H]+ and [YGPAA+H]+ Ions: A Stereochemical “Twist” on the β-Hairpin Turn. J Am Chem Soc 2017; 139:5481-5493. [PMID: 28353347 DOI: 10.1021/jacs.7b01315] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrew F. DeBlase
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084, United States
| | - Christopher P. Harrilal
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084, United States
| | - John T. Lawler
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084, United States
| | - Nicole L. Burke
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084, United States
| | - Scott A. McLuckey
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084, United States
| | - Timothy S. Zwier
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084, United States
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Pino GA, Feraud G, Broquier M, Grégoire G, Soorkia S, Dedonder C, Jouvet C. Non-radiative processes in protonated diazines, pyrimidine bases and an aromatic azine. Phys Chem Chem Phys 2016; 18:20126-34. [PMID: 27110833 DOI: 10.1039/c6cp01345g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The excited state lifetimes of DNA bases are often very short due to very efficient non-radiative processes assigned to the ππ*-nπ* coupling. A set of protonated aromatic diazine molecules (pyridazine, pyrimidine and pyrazine C4H5N2(+)) and protonated pyrimidine DNA bases (cytosine, uracil and thymine), as well as the protonated pyridine (C5H6N(+)), have been investigated. For all these molecules except one tautomer of protonated uracil (enol-keto), electronic spectroscopy exhibits vibrational line broadening. Excited state geometry optimization at the CC2 level has been conducted to find out whether the excited state lifetimes measured from line broadening can be correlated to the calculated ordering of the ππ* and nπ* states and the ππ*-nπ* energy gap. The short lifetimes, observed when one nitrogen atom of the ring is not protonated, can be rationalized by relaxation of the ππ* state to the nπ* state or directly to the electronic ground state through ring puckering.
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Affiliation(s)
- Gustavo A Pino
- Instituto de Investigaciones en Físico Química de Córdoba (INFIQC) CONICET - UNC. Dpto. de Fisicoquímica - Facultad de Ciencias Químicas - Centro Láser de Ciencias Moleculares - Universidad Nacional de Córdoba, Ciudad Universitaria, X5000HUA Córdoba, Argentina
| | - Géraldine Feraud
- CNRS, Aix Marseille Université, PIIM UMR 7345, 13397, Marseille, France.
| | - Michel Broquier
- Centre Laser de l'Université Paris-Sud (CLUPS/LUMAT), Univ. Paris-Sud, CNRS, IOGS, Université Paris-Saclay, F-91405 Orsay, France and Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS, Univ. Paris Sud, Université Paris-Saclay, F-91405 Orsay, France
| | - Gilles Grégoire
- Centre Laser de l'Université Paris-Sud (CLUPS/LUMAT), Univ. Paris-Sud, CNRS, IOGS, Université Paris-Saclay, F-91405 Orsay, France and Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS, Univ. Paris Sud, Université Paris-Saclay, F-91405 Orsay, France
| | - Satchin Soorkia
- Centre Laser de l'Université Paris-Sud (CLUPS/LUMAT), Univ. Paris-Sud, CNRS, IOGS, Université Paris-Saclay, F-91405 Orsay, France and Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS, Univ. Paris Sud, Université Paris-Saclay, F-91405 Orsay, France
| | - Claude Dedonder
- CNRS, Aix Marseille Université, PIIM UMR 7345, 13397, Marseille, France.
| | - Christophe Jouvet
- CNRS, Aix Marseille Université, PIIM UMR 7345, 13397, Marseille, France.
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Kumar S, Lucas B, Fayeton J, Scuderi D, Alata I, Broquier M, Barbu-Debus KL, Lepère V, Zehnacker A. Photofragmentation mechanisms in protonated chiral cinchona alkaloids. Phys Chem Chem Phys 2016; 18:22668-77. [DOI: 10.1039/c6cp04041a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Photo-fragmentation of protonated alkaloids results in C8–C9 cleavage accompanied or not by hydrogen migration, with a stereochemistry-dependent branching ratio.
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Affiliation(s)
- Sunil Kumar
- Institut des Sciences Moléculaires d'Orsay (ISMO)
- CNRS
- Univ. Paris-Sud
- Université Paris-Saclay
- France
| | - Bruno Lucas
- Institut des Sciences Moléculaires d'Orsay (ISMO)
- CNRS
- Univ. Paris-Sud
- Université Paris-Saclay
- France
| | - Jacqueline Fayeton
- Institut des Sciences Moléculaires d'Orsay (ISMO)
- CNRS
- Univ. Paris-Sud
- Université Paris-Saclay
- France
| | - Debora Scuderi
- Univ. Paris-Sud
- Laboratoire de Chimie Physique
- UMR8000, and CNRS
- Orsay
- France
| | - Ivan Alata
- Institut des Sciences Moléculaires d'Orsay (ISMO)
- CNRS
- Univ. Paris-Sud
- Université Paris-Saclay
- France
| | - Michel Broquier
- Institut des Sciences Moléculaires d'Orsay (ISMO)
- CNRS
- Univ. Paris-Sud
- Université Paris-Saclay
- France
| | - Katia Le Barbu-Debus
- Institut des Sciences Moléculaires d'Orsay (ISMO)
- CNRS
- Univ. Paris-Sud
- Université Paris-Saclay
- France
| | - Valeria Lepère
- Institut des Sciences Moléculaires d'Orsay (ISMO)
- CNRS
- Univ. Paris-Sud
- Université Paris-Saclay
- France
| | - Anne Zehnacker
- Institut des Sciences Moléculaires d'Orsay (ISMO)
- CNRS
- Univ. Paris-Sud
- Université Paris-Saclay
- France
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16
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Soorkia S, Dehon C, S SK, Pérot-Taillandier M, Lucas B, Jouvet C, Barat M, Fayeton JA. Ion-Induced Dipole Interactions and Fragmentation Times: Cα-Cβ Chromophore Bond Dissociation Channel. J Phys Chem Lett 2015; 6:2070-2074. [PMID: 26266504 DOI: 10.1021/acs.jpclett.5b00792] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The fragmentation times corresponding to the loss of the chromophore (Cα-Cβ bond dissociation channel) after photoexcitation at 263 nm have been investigated for several small peptides containing tryptophan or tyrosine. For tryptophan-containing peptides, the aromatic chromophore is lost as an ionic fragment (m/z 130), and the fragmentation time increases with the mass of the neutral fragment. In contrast, for tyrosine-containing peptides the aromatic chromophore is always lost as a neutral fragment (mass = 107 amu) and the fragmentation time is found to be fast (<20 ns). These different behaviors are explained by the role of the postfragmentation interaction in the complex formed after the Cα-Cβ bond cleavage.
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Affiliation(s)
- Satchin Soorkia
- †Institut des Sciences Moléculaires d'Orsay, CNRS UMR 8214, Université Paris Sud, F-91405 Orsay Cedex, France
| | - Christophe Dehon
- †Institut des Sciences Moléculaires d'Orsay, CNRS UMR 8214, Université Paris Sud, F-91405 Orsay Cedex, France
| | - Sunil Kumar S
- †Institut des Sciences Moléculaires d'Orsay, CNRS UMR 8214, Université Paris Sud, F-91405 Orsay Cedex, France
| | - Marie Pérot-Taillandier
- †Institut des Sciences Moléculaires d'Orsay, CNRS UMR 8214, Université Paris Sud, F-91405 Orsay Cedex, France
| | - Bruno Lucas
- †Institut des Sciences Moléculaires d'Orsay, CNRS UMR 8214, Université Paris Sud, F-91405 Orsay Cedex, France
| | - Christophe Jouvet
- ‡Physique des Interactions Ioniques et Moléculaires (PIIM), UMR 7345, CNRS, Aix-Marseille Université, 13397 Marseille Cedex 20, France
| | - Michel Barat
- †Institut des Sciences Moléculaires d'Orsay, CNRS UMR 8214, Université Paris Sud, F-91405 Orsay Cedex, France
| | - Jacqueline A Fayeton
- †Institut des Sciences Moléculaires d'Orsay, CNRS UMR 8214, Université Paris Sud, F-91405 Orsay Cedex, France
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17
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Byskov CS, Jensen F, Jørgensen TJD, Nielsen SB. On the photostability of peptides after selective photoexcitation of the backbone: prompt versus slow dissociation. Phys Chem Chem Phys 2015; 16:15831-8. [PMID: 24945849 DOI: 10.1039/c4cp02015d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Vulnerability of biomolecules to ultraviolet radiation is intimately linked to deexcitation pathways: photostability requires fast internal conversion to the electronic ground state, but also intramolecular vibrational redistribution and cooling on a time scale faster than dissociation. Here we present a protocol to disentangle slow and non-hazardous statistical dissociation from prompt cleavage of peptide bonds by 210 nm light based on experiments on protonated peptides isolated in vacuo and tagged by 18-crown-6 ether (CE). The weakest link in the system is between the charged site and CE, which is remote from the initial site of excitation. Hence loss of CE serves as direct proof that energy has reached the charge-site end, leaving the backbone intact. Our work demonstrates that excitation of tertiary amide moieties (proline linkages) results in both prompt dissociation and statistical dissociation after energy randomisation over all vibrational degrees of freedom.
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18
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Broquier M, Soorkia S, Grégoire G. A comprehensive study of cold protonated tyramine: UV photodissociation experiments and ab initio calculations. Phys Chem Chem Phys 2015; 17:25854-62. [DOI: 10.1039/c5cp01375e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Excited state properties of cold protonated ions are revealed by a combination of laser spectroscopy and ab initio calculations.
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Affiliation(s)
- Michel Broquier
- CNRS
- Université Paris Sud
- Institut des Sciences Moléculaires d'Orsay (ISMO) UMR 8214
- 91405 Orsay Cedex
- France
| | - Satchin Soorkia
- CNRS
- Université Paris Sud
- Institut des Sciences Moléculaires d'Orsay (ISMO) UMR 8214
- 91405 Orsay Cedex
- France
| | - Gilles Grégoire
- CNRS
- Université Paris Sud
- Institut des Sciences Moléculaires d'Orsay (ISMO) UMR 8214
- 91405 Orsay Cedex
- France
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19
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Giuliani A, Milosavljević AR, Canon F, Nahon L. Contribution of synchrotron radiation to photoactivation studies of biomolecular ions in the gas phase. Mass Spectrom Rev 2014; 33:424-441. [PMID: 24375654 DOI: 10.1002/mas.21398] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Photon activation of ions in the visible and ultraviolet range attracts a growing interest, partly for its promising applications in tandem mass spectrometry. However, this task is not trivial, as it requires notably high brilliance photon sources. Hence, most of the work in that field has been performed using lasers. Synchrotron radiation is a source continuously tunable over a wide photon energy range and which possesses the necessary characteristics for ion activation. This review focuses on the array of applications of synchrotron radiation in photon activation of ions ranging from near UV to soft X-rays.
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Affiliation(s)
- Alexandre Giuliani
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin, 91192, Gif-sur-Yvette, France; UAR1008 CEPIA, INRA, 44316, Nantes, France
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20
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Affiliation(s)
- Aleksandra V. Zabuga
- Laboratoire de Chimie Physique Moléculaire, École Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCPM, Station 6, CH-1015 Lausanne, Switzerland
| | - Michael Z. Kamrath
- Laboratoire de Chimie Physique Moléculaire, École Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCPM, Station 6, CH-1015 Lausanne, Switzerland
| | - Oleg V. Boyarkin
- Laboratoire de Chimie Physique Moléculaire, École Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCPM, Station 6, CH-1015 Lausanne, Switzerland
| | - Thomas R. Rizzo
- Laboratoire de Chimie Physique Moléculaire, École Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCPM, Station 6, CH-1015 Lausanne, Switzerland
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21
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Dedonder C, Féraud G, Jouvet C. Communication: Identification of daughter ions through their electronic spectroscopy at low temperature. J Chem Phys 2014; 141:131101. [DOI: 10.1063/1.4896981] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Claude Dedonder
- Aix-Marseille Université, CNRS, PIIM, UMR-7345, Marseille Cedex 20, France
| | - Géraldine Féraud
- Aix-Marseille Université, CNRS, PIIM, UMR-7345, Marseille Cedex 20, France
| | - Christophe Jouvet
- Aix-Marseille Université, CNRS, PIIM, UMR-7345, Marseille Cedex 20, France
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22
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Féraud G, Broquier M, Dedonder C, Jouvet C, Grégoire G, Soorkia S. Excited State Dynamics of Protonated Phenylalanine and Tyrosine: Photo-Induced Reactions Following Electronic Excitation. J Phys Chem A 2014; 119:5914-24. [DOI: 10.1021/jp5065837] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Géraldine Féraud
- CNRS, Laboratoire
de Physique des Interactions Ioniques et Moléculaires (PIIM)
UMR 7345, Aix Marseille Université, 13397 Marseille
cedex 20, France
| | - Michel Broquier
- CLUPS (Centre
Laser de l’Université Paris Sud) LUMAT FR 2764, Université Paris Sud, 91405 Orsay Cedex, France
- CNRS, Institut
des
Sciences Moléculaires d’Orsay (ISMO) UMR 8624, Université Paris Sud, 91405 Orsay Cedex, France
| | - Claude Dedonder
- CNRS, Laboratoire
de Physique des Interactions Ioniques et Moléculaires (PIIM)
UMR 7345, Aix Marseille Université, 13397 Marseille
cedex 20, France
| | - Christophe Jouvet
- CNRS, Laboratoire
de Physique des Interactions Ioniques et Moléculaires (PIIM)
UMR 7345, Aix Marseille Université, 13397 Marseille
cedex 20, France
| | - Gilles Grégoire
- CNRS, Sorbonne
Paris Cité, Laboratoire de Physique des Lasers, UMR 7538, Université Paris 13, 93430 Villetaneuse, France
| | - Satchin Soorkia
- CNRS, Institut
des
Sciences Moléculaires d’Orsay (ISMO) UMR 8624, Université Paris Sud, 91405 Orsay Cedex, France
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23
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Fujihara A, Sato T, Hayakawa S. Enantiomer-selective ultraviolet photolysis of temperature-controlled protonated tryptophan on a chiral crown ether in the gas phase. Chem Phys Lett 2014; 610-611:228-33. [DOI: 10.1016/j.cplett.2014.07.045] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Zehnacker A. Chirality effects in gas-phase spectroscopy and photophysics of molecular and ionic complexes: contribution of low and room temperature studies. INT REV PHYS CHEM 2014. [DOI: 10.1080/0144235x.2014.911548] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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25
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Soorkia S, Dehon C, Kumar SS, Pedrazzani M, Frantzen E, Lucas B, Barat M, Fayeton JA, Jouvet C. UV Photofragmentation Dynamics of Protonated Cystine: Disulfide Bond Rupture. J Phys Chem Lett 2014; 5:1110-6. [PMID: 26274457 DOI: 10.1021/jz500158j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Disulfide bonds (S-S) play a central role in stabilizing the native structure of proteins against denaturation. Experimentally, identification of these linkages in peptide and protein structure characterization remains challenging. UV photodissociation (UVPD) can be a valuable tool in identifying disulfide linkages. Here, the S-S bond acts as a UV chromophore and absorption of one UV photon corresponds to a σ-σ* transition. We have investigated the photodissociation dynamics of protonated cystine, which is a dimer of two cysteines linked by a disulfide bridge, at 263 nm (4.7 eV) using a multicoincidence technique in which fragments coming from the same fragmentation event are detected. Two types of bond cleavages are observed corresponding to the disulfide (S-S) and adjacent C-S bond ruptures. We show that the S-S cleavage leads to three different fragment ions via three different fragmentation mechanisms. The UVPD results are compared to collision-induced dissociation (CID) and electron-induced dissociation (EID) studies.
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Affiliation(s)
- Satchin Soorkia
- †Institut des Sciences Moléculaires d'Orsay, CNRS UMR 8214, Université Paris Sud, F-91405 Orsay Cedex, France
| | - Christophe Dehon
- †Institut des Sciences Moléculaires d'Orsay, CNRS UMR 8214, Université Paris Sud, F-91405 Orsay Cedex, France
| | - S Sunil Kumar
- †Institut des Sciences Moléculaires d'Orsay, CNRS UMR 8214, Université Paris Sud, F-91405 Orsay Cedex, France
| | - Mélanie Pedrazzani
- †Institut des Sciences Moléculaires d'Orsay, CNRS UMR 8214, Université Paris Sud, F-91405 Orsay Cedex, France
| | - Emilie Frantzen
- †Institut des Sciences Moléculaires d'Orsay, CNRS UMR 8214, Université Paris Sud, F-91405 Orsay Cedex, France
| | - Bruno Lucas
- †Institut des Sciences Moléculaires d'Orsay, CNRS UMR 8214, Université Paris Sud, F-91405 Orsay Cedex, France
| | - Michel Barat
- †Institut des Sciences Moléculaires d'Orsay, CNRS UMR 8214, Université Paris Sud, F-91405 Orsay Cedex, France
| | - Jacqueline A Fayeton
- †Institut des Sciences Moléculaires d'Orsay, CNRS UMR 8214, Université Paris Sud, F-91405 Orsay Cedex, France
| | - Christophe Jouvet
- ‡Aix Marseille Université, CNRS, PIIM UMR 7375, 13397 Marseille Cedex 20, France
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26
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Scuderi D, Lepere V, Piani G, Bouchet A, Zehnacker-Rentien A. Structural Characterization of the UV-Induced Fragmentation Products in an Ion Trap by Infrared Multiple Photon Dissociation Spectroscopy. J Phys Chem Lett 2014; 5:56-61. [PMID: 26276181 DOI: 10.1021/jz402348n] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Protonated cinchona alkaloids and their dimers undergo photochemical reaction in the gas phase, leading to UV-specific photofragments, not observed by collision-induced dissociation. Simultaneous coupling of UV and IR lasers with a Paul ion trap has been achieved for obtaining the vibrational spectrum of the fragments arising from the photodissociation. The structure of the photoproduced radical has been fully characterized by comparing the experimental spectrum to that simulated by DFT calculations.
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Affiliation(s)
- Debora Scuderi
- †Laboratoire de Chimie Physique and ‡Institut des Sciences Moléculaires d'Orsay, Université Paris-Sud, CNRS, F-91405 Orsay, France
| | - Valeria Lepere
- †Laboratoire de Chimie Physique and ‡Institut des Sciences Moléculaires d'Orsay, Université Paris-Sud, CNRS, F-91405 Orsay, France
| | - Giovanni Piani
- †Laboratoire de Chimie Physique and ‡Institut des Sciences Moléculaires d'Orsay, Université Paris-Sud, CNRS, F-91405 Orsay, France
| | - Aude Bouchet
- †Laboratoire de Chimie Physique and ‡Institut des Sciences Moléculaires d'Orsay, Université Paris-Sud, CNRS, F-91405 Orsay, France
| | - Anne Zehnacker-Rentien
- †Laboratoire de Chimie Physique and ‡Institut des Sciences Moléculaires d'Orsay, Université Paris-Sud, CNRS, F-91405 Orsay, France
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27
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Féraud G, Broquier M, Dedonder-Lardeux C, Grégoire G, Soorkia S, Jouvet C. Photofragmentation spectroscopy of cold protonated aromatic amines in the gas phase. Phys Chem Chem Phys 2014; 16:5250-9. [DOI: 10.1039/c3cp54736a] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Dedonder C, Féraud G, Jouvet C. Excited-State Dynamics of Protonated Aromatic Amino Acids. In: Brøndsted Nielsen S, Wyer JA, editors. Photophysics of Ionic Biochromophores. Berlin: Springer Berlin Heidelberg; 2013. pp. 155-80. [DOI: 10.1007/978-3-642-40190-9_9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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29
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Alata I, Bert J, Broquier M, Dedonder C, Feraud G, Grégoire G, Soorkia S, Marceca E, Jouvet C. Electronic Spectra of the Protonated Indole Chromophore in the Gas Phase. J Phys Chem A 2013; 117:4420-7. [DOI: 10.1021/jp402298y] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ivan Alata
- Atomic Energy Commission of Syria, P.O. Box 6091, Damascus, Syria
| | - Johan Bert
- PIIM, Aix-Marseille Université, UMR-CNRS 7345, Avenue Escadrille
Normandie-Niémen, 13397 Marseille cedex 20, France
| | | | - Claude Dedonder
- PIIM, Aix-Marseille Université, UMR-CNRS 7345, Avenue Escadrille
Normandie-Niémen, 13397 Marseille cedex 20, France
| | - Géraldine Feraud
- PIIM, Aix-Marseille Université, UMR-CNRS 7345, Avenue Escadrille
Normandie-Niémen, 13397 Marseille cedex 20, France
| | - Gilles Grégoire
- Laboratoire de Physique des
Lasers, Université Paris 13, Sorbonne Paris Cité, CNRS, 93430 Villetaneuse, France
| | | | - Ernesto Marceca
- INQUIMAE-FCEN, UBA, Ciudad Universitaria, 3er piso, Pabellón II, 1428 Buenos
Aires, Argentina
| | - Christophe Jouvet
- PIIM, Aix-Marseille Université, UMR-CNRS 7345, Avenue Escadrille
Normandie-Niémen, 13397 Marseille cedex 20, France
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30
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Abstract
The exposure of IgG1 in aqueous solution to light with λ = 254 nm or λ > 295 nm yields products consistent with Trp radical cation formation followed by (α)C-(β)C cleavage of the Trp side chain. The resulting glycyl radicals either are reduced to Gly or add oxygen prior to reduction to Gly hydroperoxide. Photoirradiation at λ = 254 nm targets Trp at positions 191 (light chain), 309 and 377 (heavy chain) while photoirradiation at λ > 295 nm targets Trp at position 309 (heavy chain). Mechanistically, the formation of Trp radical cations likely proceeds via photoinduced electron or hydrogen transfer to disulfide bonds, yielding thiyl radicals and thiols, where thiols may serve as reductants for the intermediary glycyl or glycylperoxyl radicals.
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Affiliation(s)
- Jessica Haywood
- Department of Pharmaceutical Chemistry, 2095 Constant Avenue, University of Kansas, 2095 Constant Avenue, Lawrence, Kansas 66047, USA
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31
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Dehon C, Soorkia S, Pedrazzani M, Jouvet C, Barat M, Fayeton JA, Lucas B. Photofragmentation at 263 nm of small peptides containing tyrosine: the role of the charge transfer on CO. Phys Chem Chem Phys 2013; 15:8779-88. [DOI: 10.1039/c3cp50720c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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32
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Kelly O, Calvert CR, Greenwood JB, Zettergren H, Nielsen SB, Wyer JA. Effects of charge location on the absorptions and lifetimes of protonated tyrosine peptides in vacuo. J Phys Chem A 2012; 116:1701-9. [PMID: 22268622 DOI: 10.1021/jp208578w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Nearby charges affect the electronic energy levels of chromophores, with the extent of the effect being determined by the magnitude of the charge and degree of charge-chromophore separation. The molecular configuration dictates the charge-chromophore distance. Hence, in this study, we aim to assess how the location of the charge influences the absorption of a set of model protonated and diprotonated peptide ions, and whether spectral differences are large enough to be identified. The studied ions were the dipeptide YK, the tripeptide KYK (Y = tyrosine; K = lysine) and their complexes with 18-crown-6-ether (CE). The CE targets the ammonium group by forming internal ionic hydrogen bonds and limits the folding of the peptide. In the tripeptide, the distance between the chromophore and the backbone ammonium is enlarged relative to that in the dipeptide. Experiments were performed in an electrostatic ion storage ring using a tunable laser system, and action spectra based on lifetime measurements were obtained in the range from 210 to 310 nm. The spectra are all quite similar though there seems to be some changes in the absorption band between 210 and 250 nm, while in the lower energy band all ions had a maximum absorption at ~275 nm. Lifetimes after photoexcitation were found to shorten upon protonation and lengthen upon CE complexation, in accordance with the increased number of degrees of freedom and an increase in activation energies for dissociation as the mobile proton model is no longer operative.
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Affiliation(s)
- Orla Kelly
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, BT7 1NN, UK
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33
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Kumar SS, Lucas B, Soorkia S, Barat M, Fayeton JA. Cα–Cβ chromophore bond dissociation in protonated tyrosine-methionine, methionine-tyrosine, tryptophan-methionine, methionine-tryptophan and their sulfoxide analogs. Phys Chem Chem Phys 2012; 14:10225-32. [DOI: 10.1039/c2cp40773f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Abraham S, Weiss RG. ‘Remote’ Adiabatic Photoinduced Deprotonation and Aggregate Formation of Amphiphilic N-Alkyl-N-methyl-3-(pyren-1-yl)propan-1-ammonium Chloride Salts. J Am Chem Soc 2011; 133:19250-6. [DOI: 10.1021/ja208674s] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shibu Abraham
- Department of Chemistry, Georgetown University, Washington, D.C. 20057-1227, United States
| | - Richard G. Weiss
- Department of Chemistry, Georgetown University, Washington, D.C. 20057-1227, United States
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35
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Liu F, Fang Y, Chen Y, Liu J. Dissociative Excitation Energy Transfer in the Reactions of Protonated Cysteine and Tryptophan with Electronically Excited Singlet Molecular Oxygen (a1Δg). J Phys Chem B 2011; 115:9898-909. [DOI: 10.1021/jp205235d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fangwei Liu
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Flushing, New York 11367, United States
| | - Yigang Fang
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Flushing, New York 11367, United States
| | - Yun Chen
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Flushing, New York 11367, United States
| | - Jianbo Liu
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Flushing, New York 11367, United States
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36
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Diani-Moore S, Ma Y, Labitzke E, Tao H, David Warren J, Anderson J, Chen Q, Gross SS, Rifkind AB. Discovery and biological characterization of 1-(1H-indol-3-yl)-9H-pyrido[3,4-b]indole as an aryl hydrocarbon receptor activator generated by photoactivation of tryptophan by sunlight. Chem Biol Interact 2011; 193:119-28. [PMID: 21722628 DOI: 10.1016/j.cbi.2011.05.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2011] [Revised: 05/26/2011] [Accepted: 05/31/2011] [Indexed: 01/12/2023]
Abstract
Activation of the aryl hydrocarbon receptor (AHR) by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is required for AHR dependent transcriptional activation and TCDD toxicity. We previously reported that aqueous tryptophan exposed to sunlight through window glass (aTRP) contains multiple photoproducts, including the well characterized 6-formylindolo[3,2-b]carbazole (FICZ), capable of activating the AHR and inducing CYP1A and CYP1A-mediated enzyme activities. We report here the isolation from aTRP and chemical characterization and synthesis of 1-(1H-indol-3-yl)-9H-pyrido[3,4-b]indole (IPI), a compound previously identified as a natural product of marine ascidia and now shown to be a TRP photoproduct with AHR-inducing properties. IPI, FICZ and TCDD produced equieffective induction of CYP1A-mediated 7-ethoxyresorufin deethylase (EROD) activity in chick embryo primary hepatocytes and mammalian Hepa1c1c7 cells. EROD induction by IPI was markedly curtailed in AHR-defective c35 cells, supporting the AHR dependence of the IPI response. Although IPI had a higher EC(50) for EROD induction than FICZ, the much larger amount of IPI than FICZ in aTRP makes IPI a prominent contributor to EROD induction in aTRP. IPI was detected in TRP-containing culture medium under ambient laboratory conditions but not in TRP-free medium, consistent with its production from TRP. Cotreatment of hepatocytes with submaximal EROD-inducing doses of IPI and FICZ or TCDD produced additive increases in EROD without synergistic or inhibitory interactions. IPI and FICZ were readily metabolized by cultured hepatocytes. In addition to increasing CYP1A4 mRNA and EROD, IPI and FICZ decreased hepatocyte phosphoenolpyruvate carboxykinase mRNA expression and glucose output, biological effects associated with TCDD metabolic dysregulation. The findings underscore a role for sunlight in generating AHR-activating bioactive molecules.
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Affiliation(s)
- Silvia Diani-Moore
- Department of Pharmacology, Weill Medical College of Cornell University, NY 10065, USA
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Cheong NR, Nam SH, Park HS, Ryu S, Song JK, Park SM, Pérot M, Lucas B, Barat M, Fayeton JA, Jouvet C. Photofragmentation in selected tautomers of protonated adenine. Phys Chem Chem Phys 2011; 13:291-5. [DOI: 10.1039/c000961j] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Svendsen A, Lorenz UJ, Boyarkin OV, Rizzo TR. A new tandem mass spectrometer for photofragment spectroscopy of cold, gas-phase molecular ions. Rev Sci Instrum 2010; 81:073107. [PMID: 20687705 DOI: 10.1063/1.3458014] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We present here the design of a new tandem mass spectrometer that combines an electrospray ion source with a cryogenically cooled ion trap for spectroscopic studies of cold, gas-phase ions. The ability to generate large ions in the gas phase without fragmentation, cool them to approximately 10 K in an ion trap, and perform photofragment spectroscopy opens up new possibilities for spectroscopic characterization of large biomolecular ions. The incorporation of an ion funnel, together with a number of small enhancements, significantly improves the sensitivity, signal stability, and ease of use compared with the previous instrument built in our laboratory.
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Affiliation(s)
- Annette Svendsen
- Laboratoire de Chimie Physique Moléculaire, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCPM, Station 6, CH-1015 Lausanne, Switzerland
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Affiliation(s)
| | - Yi He
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405
| | - James P. Reilly
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405
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Scuderi D, Maitre P, Rondino F, Barbu-Debus KL, Lepère V, Zehnacker-Rentien A. Chiral Recognition in Cinchona Alkaloid Protonated Dimers: Mass Spectrometry and UV Photodissociation Studies. J Phys Chem A 2010; 114:3306-12. [DOI: 10.1021/jp9094497] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- D. Scuderi
- Laboratoire de Chimie Physique, UMR8000, Bât. 350 and Laboratoire de Photophysique Moléculaire, CNRS UPR3361, Bât. 210 Univ Paris-Sud, Orsay, F-91405, and Dipartimento di Chimica e Tecnologia del Farmaco, Università di Roma “La Sapienza”, P.le Aldo Moro 5, Rome I-00185
| | - P. Maitre
- Laboratoire de Chimie Physique, UMR8000, Bât. 350 and Laboratoire de Photophysique Moléculaire, CNRS UPR3361, Bât. 210 Univ Paris-Sud, Orsay, F-91405, and Dipartimento di Chimica e Tecnologia del Farmaco, Università di Roma “La Sapienza”, P.le Aldo Moro 5, Rome I-00185
| | - F. Rondino
- Laboratoire de Chimie Physique, UMR8000, Bât. 350 and Laboratoire de Photophysique Moléculaire, CNRS UPR3361, Bât. 210 Univ Paris-Sud, Orsay, F-91405, and Dipartimento di Chimica e Tecnologia del Farmaco, Università di Roma “La Sapienza”, P.le Aldo Moro 5, Rome I-00185
| | - K. Le Barbu-Debus
- Laboratoire de Chimie Physique, UMR8000, Bât. 350 and Laboratoire de Photophysique Moléculaire, CNRS UPR3361, Bât. 210 Univ Paris-Sud, Orsay, F-91405, and Dipartimento di Chimica e Tecnologia del Farmaco, Università di Roma “La Sapienza”, P.le Aldo Moro 5, Rome I-00185
| | - V. Lepère
- Laboratoire de Chimie Physique, UMR8000, Bât. 350 and Laboratoire de Photophysique Moléculaire, CNRS UPR3361, Bât. 210 Univ Paris-Sud, Orsay, F-91405, and Dipartimento di Chimica e Tecnologia del Farmaco, Università di Roma “La Sapienza”, P.le Aldo Moro 5, Rome I-00185
| | - A. Zehnacker-Rentien
- Laboratoire de Chimie Physique, UMR8000, Bât. 350 and Laboratoire de Photophysique Moléculaire, CNRS UPR3361, Bât. 210 Univ Paris-Sud, Orsay, F-91405, and Dipartimento di Chimica e Tecnologia del Farmaco, Università di Roma “La Sapienza”, P.le Aldo Moro 5, Rome I-00185
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Ehlerding A, Wyer JA, Zettergren H, Kirketerp MBS, Nielsen SB. UV Photodissociation of Protonated Gly-Trp and Trp-Gly Dipeptides and Their Complexes with Crown Ether in an Electrostatic Ion Storage Ring. J Phys Chem A 2009; 114:299-303. [DOI: 10.1021/jp9086317] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Anneli Ehlerding
- Department of Physics and Astronomy, Aarhus University, Ny Munkegade, DK-8000 Aarhus C, Denmark
| | - Jean Ann Wyer
- Department of Physics and Astronomy, Aarhus University, Ny Munkegade, DK-8000 Aarhus C, Denmark
| | - Henning Zettergren
- Department of Physics and Astronomy, Aarhus University, Ny Munkegade, DK-8000 Aarhus C, Denmark
| | | | - Steen Brøndsted Nielsen
- Department of Physics and Astronomy, Aarhus University, Ny Munkegade, DK-8000 Aarhus C, Denmark
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Affiliation(s)
- M. Pérot
- Université Paris-Sud, Laboratoire des Collisions Atomiques et Moléculaires, UMR 8625, Bât. 351, Orsay, F-91405 France and Université. Paris-Sud, Laboratoire de Photophysique Moléculaire, UPR 3361, Bât. 210, Orsay, F-91405 France
| | - B. Lucas
- Université Paris-Sud, Laboratoire des Collisions Atomiques et Moléculaires, UMR 8625, Bât. 351, Orsay, F-91405 France, and CNRS, UMR 8625, Orsay, F-91405 France
| | - M. Barat
- Université Paris-Sud, Laboratoire des Collisions Atomiques et Moléculaires, UMR 8625, Bât. 351, Orsay, F-91405 France, and CNRS, UMR 8625, Orsay, F-91405 France
| | - J. A. Fayeton
- Université Paris-Sud, Laboratoire des Collisions Atomiques et Moléculaires, UMR 8625, Bât. 351, Orsay, F-91405 France, and CNRS, UMR 8625, Orsay, F-91405 France
| | - C. Jouvet
- Université Paris-Sud, Laboratoire de Photophysique Moléculaire, UPR 3361, Bât. 210, Orsay, F-91405 France, and CNRS, UPR 3361, Orsay, F-91405 France
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Kadhane U, Pérot M, Lucas B, Barat M, Fayeton J, Jouvet C, Ehlerding A, Kirketerp MB, Nielsen SB, Wyer J, Zettergren H. Photodissociation of protonated tryptamine and its supramolecular complex with 18-crown-6 ether: Dissociation times and channels, absorption spectra, and excited states calculations. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.08.064] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Wyer JA, Ehlerding A, Zettergren H, Kirketerp MBS, Brøndsted Nielsen S. Tagging of Protonated Ala-Tyr and Tyr-Ala by Crown Ether Prevents Direct Hydrogen Loss and Proton Mobility after Photoexcitation: Importance for Gas-Phase Absorption Spectra, Dissociation Lifetimes, and Channels. J Phys Chem A 2009; 113:9277-85. [DOI: 10.1021/jp904053d] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jean Ann Wyer
- Department of Physics and Astronomy, Aarhus University, Ny Munkegade, DK-8000 Aarhus C, Denmark
| | - Anneli Ehlerding
- Department of Physics and Astronomy, Aarhus University, Ny Munkegade, DK-8000 Aarhus C, Denmark
| | - Henning Zettergren
- Department of Physics and Astronomy, Aarhus University, Ny Munkegade, DK-8000 Aarhus C, Denmark
| | - Maj-Britt S. Kirketerp
- Department of Physics and Astronomy, Aarhus University, Ny Munkegade, DK-8000 Aarhus C, Denmark
| | - Steen Brøndsted Nielsen
- Department of Physics and Astronomy, Aarhus University, Ny Munkegade, DK-8000 Aarhus C, Denmark
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Abstract
The reaction paths in the lowest excited electronic states relevant for the photophysics of protonated benzene, C(6)H(7)(+), have been explored by ab initio techniques of electronic structure theory. For this purpose, the first four excited singlet electronic states of C(6)H(7)(+) have been calculated at the CC2/cc-pVTZ level of theory. The CC2 approach has been validated by CASPT2 and TD-DFT calculations. The calculated UV absorption spectrum is in good agreement with the experimental spectrum. It has been found that the out-of-plane and the in-plane ring deformation leads in the excited states in an essential barrierless manner to a low-lying conical intersection between the lowest excited states and with the ground state, providing a mechanism for efficient radiationless deactivation, which is expected to quench luminescence of the isolated molecular ion.
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Affiliation(s)
- Michal F Rode
- Institute of Physics, Polish Academy of Sciences, PL-02668 Warsaw, Poland
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Chakraborty S, Omidyan R, Alata I, Nielsen IB, Dedonder C, Broquier M, Jouvet C. Protonated Benzene Dimer: An Experimental and Ab Initio Study. J Am Chem Soc 2009; 131:11091-7. [DOI: 10.1021/ja903181k] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Shamik Chakraborty
- Centre Laser de l’Université Paris Sud (EA. 4127), Bât. 106, Univ. Paris-Sud 11 - 91405 Orsay Cedex, France, and Laboratoire de Photophysique Moléculaire du CNRS (UPR 3361), Bât. 210, Univ. Paris-Sud 11 - 91405 Orsay Cedex, France
| | - Reza Omidyan
- Centre Laser de l’Université Paris Sud (EA. 4127), Bât. 106, Univ. Paris-Sud 11 - 91405 Orsay Cedex, France, and Laboratoire de Photophysique Moléculaire du CNRS (UPR 3361), Bât. 210, Univ. Paris-Sud 11 - 91405 Orsay Cedex, France
| | - Ivan Alata
- Centre Laser de l’Université Paris Sud (EA. 4127), Bât. 106, Univ. Paris-Sud 11 - 91405 Orsay Cedex, France, and Laboratoire de Photophysique Moléculaire du CNRS (UPR 3361), Bât. 210, Univ. Paris-Sud 11 - 91405 Orsay Cedex, France
| | - Iben B. Nielsen
- Centre Laser de l’Université Paris Sud (EA. 4127), Bât. 106, Univ. Paris-Sud 11 - 91405 Orsay Cedex, France, and Laboratoire de Photophysique Moléculaire du CNRS (UPR 3361), Bât. 210, Univ. Paris-Sud 11 - 91405 Orsay Cedex, France
| | - Claude Dedonder
- Centre Laser de l’Université Paris Sud (EA. 4127), Bât. 106, Univ. Paris-Sud 11 - 91405 Orsay Cedex, France, and Laboratoire de Photophysique Moléculaire du CNRS (UPR 3361), Bât. 210, Univ. Paris-Sud 11 - 91405 Orsay Cedex, France
| | - Michel Broquier
- Centre Laser de l’Université Paris Sud (EA. 4127), Bât. 106, Univ. Paris-Sud 11 - 91405 Orsay Cedex, France, and Laboratoire de Photophysique Moléculaire du CNRS (UPR 3361), Bât. 210, Univ. Paris-Sud 11 - 91405 Orsay Cedex, France
| | - Christophe Jouvet
- Centre Laser de l’Université Paris Sud (EA. 4127), Bât. 106, Univ. Paris-Sud 11 - 91405 Orsay Cedex, France, and Laboratoire de Photophysique Moléculaire du CNRS (UPR 3361), Bât. 210, Univ. Paris-Sud 11 - 91405 Orsay Cedex, France
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Makara K, Misawa K, Miyazaki M, Mitsuda H, Ishiuchi SI, Fujii M. Vibrational Signature of the Conformers in Tyramine Studied by IR Dip and Dispersed Fluorescence Spectroscopies. J Phys Chem A 2008; 112:13463-9. [DOI: 10.1021/jp806232x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Koji Makara
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan, Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta Midori-ku, Yokohama 226-8502, Japan, and Integrated Research Institute, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Kentaro Misawa
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan, Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta Midori-ku, Yokohama 226-8502, Japan, and Integrated Research Institute, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Mitsuhiko Miyazaki
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan, Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta Midori-ku, Yokohama 226-8502, Japan, and Integrated Research Institute, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Haruhiko Mitsuda
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan, Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta Midori-ku, Yokohama 226-8502, Japan, and Integrated Research Institute, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Shun-ichi Ishiuchi
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan, Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta Midori-ku, Yokohama 226-8502, Japan, and Integrated Research Institute, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Masaaki Fujii
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan, Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta Midori-ku, Yokohama 226-8502, Japan, and Integrated Research Institute, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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Kadhane U, Andersen JU, Ehlerding A, Hvelplund P, Kirketerp MBS, Lykkegaard MK, Nielsen SB, Panja S, Wyer JA, Zettergren H. Photodissociation of protonated tryptophan and alteration of dissociation pathways by complexation with crown ether. J Chem Phys 2008; 129:184304. [DOI: 10.1063/1.3009222] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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