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Nakasone Y, Terazima M. A Time-Resolved Diffusion Technique for Detection of the Conformational Changes and Molecular Assembly/Disassembly Processes of Biomolecules. Front Genet 2021; 12:691010. [PMID: 34276791 PMCID: PMC8278059 DOI: 10.3389/fgene.2021.691010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 05/31/2021] [Indexed: 12/20/2022] Open
Abstract
Biological liquid-liquid phase separation (LLPS) is driven by dynamic and multivalent interactions, which involves conformational changes and intermolecular assembly/disassembly processes of various biomolecules. To understand the molecular mechanisms of LLPS, kinetic measurements of the intra- and intermolecular reactions are essential. In this review, a time-resolved diffusion technique which has a potential to detect molecular events associated with LLPS is presented. This technique can detect changes in protein conformation and intermolecular interaction (oligomer formation, protein-DNA interaction, and protein-lipid interaction) in time domain, which are difficult to obtain by other methods. After the principle and methods for signal analyses are described in detail, studies on photoreactive molecules (intermolecular interaction between light sensor proteins and its target DNA) and a non-photoreactive molecule (binding and folding reaction of α-synuclein upon mixing with SDS micelle) are presented as typical examples of applications of this unique technique.
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Affiliation(s)
- Yusuke Nakasone
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, Japan
| | - Masahide Terazima
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, Japan
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2
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Kashihara W, Takeyama J, Suzuki T. Diffusion process in photoreaction of ketoprofen probed by transient grating method. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112623] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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3
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Kimura Y, Kida Y, Matsushita Y, Yasaka Y, Ueno M, Takahashi K. Universality of Viscosity Dependence of Translational Diffusion Coefficients of Carbon Monoxide, Diphenylacetylene, and Diphenylcyclopropenone in Ionic Liquids under Various Conditions. J Phys Chem B 2015; 119:8096-103. [DOI: 10.1021/acs.jpcb.5b02898] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | - Y. Matsushita
- Institute
of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | | | | | - K. Takahashi
- Institute
of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
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4
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Nielsen A, Kuzmanich G, Garcia-Garibay MA. Quantum chain reaction of tethered diarylcyclopropenones in the solid state and their distance-dependence in solution reveal a Dexter S₂-S₂ energy-transfer mechanism. J Phys Chem A 2014; 118:1858-63. [PMID: 24533559 DOI: 10.1021/jp501216z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
When promoted to their second singlet excited state (S2) in benzene, alkyl-linked dimers of diarylcyclopropenone undergo a photodecarbonylation reaction with quantum yields varying from Φ = 0.7 to 1.14. Quantum yields greater than 1.0 in solution rely on an adiabatic reaction along the S2 energy surface where the immediately formed excited-state product transfers energy to the unreacted molecule in the dimer to generate a second excited state. By determination of the quantum yields of decarbonylation for the linked diarylcyclopropenones with linkers of various lengths it was shown that S2 → S2 energy transfer is limited to distances shorter than ca. 6 Å. Notably, the quantum chain reaction occurs with similar efficiency for all the linked diarylcyclopropenones dimers in the solid state.
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Affiliation(s)
- Amy Nielsen
- Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095, United States
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Inoue H, Kuwahara S, Katayama K. The whole process of phase transition and relaxation of poly(N-isopropylacrylamide) aqueous solution. Phys Chem Chem Phys 2013; 15:3814-9. [DOI: 10.1039/c3cp43309a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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7
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Kuzmanich G, Gard MN, Garcia-Garibay MA. Photonic Amplification by a Singlet-State Quantum Chain Reaction in the Photodecarbonylation of Crystalline Diarylcyclopropenones. J Am Chem Soc 2009; 131:11606-14. [DOI: 10.1021/ja9043449] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gregory Kuzmanich
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90024-1569
| | - Matthew N. Gard
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90024-1569
| | - Miguel A. Garcia-Garibay
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90024-1569
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8
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Nishiyama Y, Fukuda M, Terazima M, Kimura Y. Study of the translational diffusion of the benzophenone ketyl radical in comparison with stable molecules in room temperature ionic liquids by transient grating spectroscopy. J Chem Phys 2008; 128:164514. [DOI: 10.1063/1.2901973] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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9
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Tsuruta T, Okuda M, Katayama K. Detection of active oxygen species dynamics in TiO2 sol solutions using single-shot near-field heterodyne transient grating method. Chem Phys Lett 2008. [DOI: 10.1016/j.cplett.2008.03.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Kuzmanich G, Natarajan A, Chin KK, Veerman M, Mortko CJ, Garcia-Garibay MA. Solid-state photodecarbonylation of diphenylcyclopropenone: a quantum chain process made possible by ultrafast energy transfer. J Am Chem Soc 2008; 130:1140-1. [PMID: 18183985 DOI: 10.1021/ja078301x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gregory Kuzmanich
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90024-1569, USA
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11
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Borsarelli CD, Braslavsky SE, Sortino S, Marconi G, Monti S. Photodecarboxylation of Ketoprofen in Aqueous Solution. A Time-resolved Laser-induced Optoacoustic Study¶. Photochem Photobiol 2007. [DOI: 10.1562/0031-8655(2000)0720163pokias2.0.co2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Terazima M. Photothermal Studies of Photophysical and Photochemical Processes by the Transient Grating Method. ADVANCES IN PHOTOCHEMISTRY 2007. [DOI: 10.1002/9780470133552.ch5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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13
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Inoue K, Sasaki J, Spudich JL, Terazima M. Laser-induced transient grating analysis of dynamics of interaction between sensory rhodopsin II D75N and the HtrII transducer. Biophys J 2006; 92:2028-40. [PMID: 17189313 PMCID: PMC1861795 DOI: 10.1529/biophysj.106.097493] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The interaction between sensory rhodopsin II (SRII) and its transducer HtrII was studied by the time-resolved laser-induced transient grating method using the D75N mutant of SRII, which exhibits minimal visible light absorption changes during its photocycle, but mediates normal phototaxis responses. Flash-induced transient absorption spectra of transducer-free D75N and D75N joined to 120 amino-acid residues of the N-terminal part of the SRII transducer protein HtrII (DeltaHtrII) showed only one spectrally distinct K-like intermediate in their photocycles, but the transient grating method resolved four intermediates (K(1)-K(4)) distinct in their volumes. D75N bound to HtrII exhibited one additional slower kinetic species, which persists after complete recovery of the initial state as assessed by absorption changes in the UV-visible region. The kinetics indicate a conformationally changed form of the transducer portion (designated Tr*), which persists after the photoreceptor returns to the unphotolyzed state. The largest conformational change in the DeltaHtrII portion was found to cause a DeltaHtrII-dependent increase in volume rising in 8 micros in the K(4) state and a drastic decrease in the diffusion coefficient (D) of K(4) relatively to those of the unphotolyzed state and Tr*. The magnitude of the decrease in D indicates a large structural change, presumably in the solvent-exposed HAMP domain of DeltaHtrII, where rearrangement of interacting molecules in the solvent would substantially change friction between the protein and the solvent.
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Affiliation(s)
- Keiichi Inoue
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, Japan
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14
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Hazra P, Inoue K, Laan W, Hellingwerf KJ, Terazima M. Tetramer formation kinetics in the signaling state of AppA monitored by time-resolved diffusion. Biophys J 2006; 91:654-61. [PMID: 16648173 PMCID: PMC1483092 DOI: 10.1529/biophysj.106.083915] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The photoreaction kinetics of the BLUF domain of AppA(5-125) was studied by monitoring time-dependence of an apparent diffusion coefficient (D) using the pulsed laser-induced transient grating technique. It was found that D of the photoproduct is time-dependent. From the concentration dependence of the reaction rate, it was concluded that the BLUF domain of AppA forms a dimer upon the photoexcitation. Since AppA exists as a dimeric form in the ground state, this dimerization reaction indicates the tetramer formation in the signaling state. From the slope of the plot of observed rate constants (k(obs)) against the AppA concentration, the second order rate constant is determined to be approximately 2.5 x 10(5) M(-1) s(-1), which is approximately 4 orders in magnitude lower than the diffusion controlled reaction. It indicates that a relative orientation of the protein molecules during the dimerization process causes additional constraints, which slow down the reaction rate.
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Affiliation(s)
- Partha Hazra
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, Japan
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15
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Khan JS, Imamoto Y, Kataoka M, Tokunaga F, Terazima M. Time-Resolved Thermodynamics: Heat Capacity Change of Transient Species during Photoreaction of PYP. J Am Chem Soc 2005; 128:1002-8. [PMID: 16417392 DOI: 10.1021/ja055584p] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Heat capacity changes of short-lived transient species in different time ranges were measured for the first time by using the thermal component of the transient grating and transient lens signals at various temperatures. This method was applied to the transient intermediates of Photoactive Yellow Protein (PYP). The temperature dependence of the enthalpy change shows that the heat capacity of the short-lived intermediate pR2 (also called I1 or PYP(L)) species is the same as that of the ground state (pG) species within our experimental accuracy, whereas that of the long-lived intermediate pB (I2 or PYP(M)) is much larger (2.7 +/- 0.4 kJ/mol K) than that of pG. The larger heat capacity is interpreted in terms of the conformational change of the pB species such as melted conformation and/or exposure of the nonpolar residues to the aqueous phase. This technique can be used for photochemical reactions in general to investigate the conformational change and the hydrophobic interaction in a time domain.
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Affiliation(s)
- Javaid Shahbaz Khan
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
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16
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Terazima M. Time-Resolved Thermodynamic Properties of Intermediate Species during Photochemical Reactions. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2004. [DOI: 10.1246/bcsj.77.23] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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17
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Choi J, Terazima M. Photochemical Reaction of 2-Nitrobenzaldehyde by Monitoring the Diffusion Coefficient. J Phys Chem B 2003. [DOI: 10.1021/jp0342071] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Jungkwon Choi
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606, Japan
| | - Masahide Terazima
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606, Japan
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18
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Gensch T, Viappiani C. Time-resolved photothermal methods: accessing time-resolved thermodynamics of photoinduced processes in chemistry and biology. Photochem Photobiol Sci 2003; 2:699-721. [PMID: 12911218 DOI: 10.1039/b303177b] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photothermal methods are currently being employed in a variety of research areas, ranging from materials science to environmental monitoring. Despite the common term which they are collected under, the implementations of these techniques are as diverse as the fields of application. In this review, we concentrate on the recent applications of time-resolved methods in photochemistry and photobiology.
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Affiliation(s)
- Thomas Gensch
- Forschungszentrum Jülich, Institut für Biologische Informationsverarbeitung 1, 52425 Jülich, Germany.
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19
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Choi J, Terazima M. Photoreaction of caged ATP studied by the time-resolved transient grating method. Photochem Photobiol Sci 2003; 2:767-73. [PMID: 12911225 DOI: 10.1039/b301745a] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photoreaction of caged ATP, P3-[1-(2-nitrophenyl)ethyl]adenosine-5'-triphosphate, has been investigated using the time-resolved transient grating (TG) method. We found that a feature of the TG signal time profile depends sensitively on the grating wavenumber (q) after the photoexcitation of caged ATP. This q-dependent feature of the TG signal was interpreted based on a model where the ATP release rate is comparable to the molecular diffusion process. We found that the TG signals at various q can be consistently analyzed based on this model and the ATP release rate determined. The enthalpy and volume changes of the reaction have been determined by quantitative measurement of the grating and photoacoustic signals.
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Affiliation(s)
- Jungkwon Choi
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
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20
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Hellingwerf KJ, Hendriks J, Gensch T. Photoactive Yellow Protein, A New Type of Photoreceptor Protein: Will This “Yellow Lab” Bring Us Where We Want to Go? J Phys Chem A 2003. [DOI: 10.1021/jp027005y] [Citation(s) in RCA: 248] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Klaas J. Hellingwerf
- Laboratory for Microbiology, Swammerdam Institute for Life Sciences (SILS), BioCentrum, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, and Institute of Biological Information Processing 1, Research Centre Jülich, D-52425 Jülich, Germany
| | - Johnny Hendriks
- Laboratory for Microbiology, Swammerdam Institute for Life Sciences (SILS), BioCentrum, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, and Institute of Biological Information Processing 1, Research Centre Jülich, D-52425 Jülich, Germany
| | - Thomas Gensch
- Laboratory for Microbiology, Swammerdam Institute for Life Sciences (SILS), BioCentrum, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, and Institute of Biological Information Processing 1, Research Centre Jülich, D-52425 Jülich, Germany
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Molecular volume and enthalpy changes associated with irreversible photo-reactions. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2002. [DOI: 10.1016/s1389-5567(02)00021-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Choi J, Terazima M. Denaturation of a Protein Monitored by Diffusion Coefficients: Myoglobin. J Phys Chem B 2002. [DOI: 10.1021/jp0256802] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jungkwon Choi
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Masahide Terazima
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
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23
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Sakakura M, Morishima I, Terazima M. The Structural Dynamics and Ligand Releasing Process after the Photodissociation of Sperm Whale Carboxymyoglobin. J Phys Chem B 2001. [DOI: 10.1021/jp0116252] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Masaki Sakakura
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan, and Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan
| | - Isao Morishima
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan, and Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan
| | - Masahide Terazima
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan, and Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan
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24
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Terazima M. Energy Transfer from Photoexcited Electronic States to the Thermal Modes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2001. [DOI: 10.1246/bcsj.74.595] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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25
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Choi J, Hirota N, Terazima M. A pH-Jump Reaction Studied by the Transient Grating Method: Photodissociation of o-Nitrobenzaldehyde. J Phys Chem A 2000. [DOI: 10.1021/jp0014162] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Jungkwon Choi
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Noboru Hirota
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Masahide Terazima
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
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Farrell GJ, Burkey TJ. High-pressure photoacoustic calorimetry of chromium hexacarbonyl: volumes of heptane displacement from chromium pentacarbonyl heptane. J Photochem Photobiol A Chem 2000. [DOI: 10.1016/s1010-6030(00)00371-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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27
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Takeshita K, Hirota N, Imamoto Y, Kataoka M, Tokunaga F, Terazima M. Temperature-Dependent Volume Change of the Initial Step of the Photoreaction of Photoactive Yellow Protein (PYP) Studied by Transient Grating. J Am Chem Soc 2000. [DOI: 10.1021/ja000426d] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kan Takeshita
- Contribution from the Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan, Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), Nara 630-0101, Japan, and Department of Earth and Space Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Noboru Hirota
- Contribution from the Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan, Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), Nara 630-0101, Japan, and Department of Earth and Space Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Yasushi Imamoto
- Contribution from the Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan, Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), Nara 630-0101, Japan, and Department of Earth and Space Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Mikio Kataoka
- Contribution from the Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan, Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), Nara 630-0101, Japan, and Department of Earth and Space Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Fumio Tokunaga
- Contribution from the Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan, Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), Nara 630-0101, Japan, and Department of Earth and Space Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Masahide Terazima
- Contribution from the Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan, Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), Nara 630-0101, Japan, and Department of Earth and Space Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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Borsarelli CD, Braslavsky SE, Sortino S, Marconi G, Monti S. Photodecarboxylation of ketoprofen in aqueous solution. A time-resolved laser-induced optoacoustic study. Photochem Photobiol 2000; 72:163-71. [PMID: 10946568 DOI: 10.1562/0031-8655(2000)072<0163:pokias>2.0.co;2] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The photodecarboxylation reaction of 2-(3-benzoylphenyl)propionate (ketoprofen anion, KP-) was studied in water and in 0.1 M phosphate buffer solutions in the pH range 5.7-11.0 by laser-induced optoacoustic spectroscopy (LIOAS, T range 9.5-31.6 degrees C). Upon exciting KP- with 355 nm laser pulses under anaerobic conditions, two components in the LIOAS signals with well-separated lifetimes were found (tau 1 < 20 ns; 250 < tau 2 < 500 ns) in the whole pH range, whereas a long-lived third component (4 < tau 3 < 10 microseconds) was only detected at pH < or = 6.1. The heat and structural volume changes accompanying the first step did not depend on pH or on the presence of buffer. The carbanion resulting from prompt decarboxylation within the nanosecond pulse (< 10 ns) drastically reduces its molar volume ([-18.9 +/- 2.0] cm3/mol) with respect to KP- and its enthalpy content is (256 +/- 10) kJ/mol. At acid pH (ca 6), a species is formed with a lifetime in the hundreds of ns. The enthalpy and structural volume change for this species with respect to KP- are (181 +/- 15) kJ/mol and (+0.6 +/- 2.0) cm3/mol, respectively. This species is most likely a neutral biradical formed by protonation of the decarboxylated carbanion, and decays to the final product 3-ethylbenzophenone in several microsecond. At basic pH (ca 11), direct formation of 3-ethylbenzophenone occurs in hundreds of ns involving a reaction with the solvent. The global decarboxylation reaction is endothermic ([45 +/- 15] kJ/mol) and shows an expansion of (+14.5 +/- 0.5) cm3/mol with respect to KP-. At low pH, the presence of buffer strongly affects the magnitude of the structural volume changes associated with intermolecular proton-transfer processes of the long-lived species due to reactions of the buffer anion with the decarboxylated ketoprofen anion.
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Affiliation(s)
- C D Borsarelli
- Departamento de Química y Física, Universidad Nacional de Rio Cuarto, Argentina.
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Enthalpy changes and reaction volumes of photoisomerization reactions in solution: azobenzene and p-coumaric acid. J Photochem Photobiol A Chem 2000. [DOI: 10.1016/s1010-6030(00)00251-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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30
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Affiliation(s)
- Reinhard Schmidt
- Institut für Physikalische und Theoretische Chemie, J. W. Goethe-Universität, Marie-Curie-Strasse 11, D60439 Frankfurt am Main, Germany
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Drljaca A, Hubbard CD, van Eldik R, Asano T, Basilevsky MV, le Noble WJ. Activation and Reaction Volumes in Solution. 3. Chem Rev 1998; 98:2167-2290. [PMID: 11848963 DOI: 10.1021/cr970461b] [Citation(s) in RCA: 272] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A. Drljaca
- Institute for Inorganic Chemistry, University of Erlangen-Nürnberg, Egerlandstr. 1, 91058 Erlangen, Germany, Institute for Fundamental Research of Organic Chemistry, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, Japan, Karpov Institute of Physical Chemistry, 10, Vorontsovo Pole, 103064 Moscow, Russia, and Department of Chemistry, State University of New York, Stony Brook, New York 11794-3400
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Heat of reaction and reaction volume for the formation of ethers from diazo compounds in methanol. Chem Phys Lett 1998. [DOI: 10.1016/s0009-2614(98)00101-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Terazima M. Reaction Enthalpy and Reaction Volume Changes upon Photoenolization: 2-Methylbenzophenone. J Phys Chem A 1998. [DOI: 10.1021/jp972726w] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Masahide Terazima
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, 606, Japan
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Kimura Y, Sugihara K, Terazima M, Hirota N. Study on the Photolysis Quantum Yield of Diphenyl Disulfide by the Transient Grating Method. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1997. [DOI: 10.1246/bcsj.70.2657] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Terazima M. Translational diffusion of intermediate species in solutions. RESEARCH ON CHEMICAL INTERMEDIATES 1997. [DOI: 10.1163/156856797x00123] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Schmidt R, Schütz M. Determination of reaction volumes and reaction enthalpies by photoacoustic calorimetry. Chem Phys Lett 1996. [DOI: 10.1016/s0009-2614(96)01274-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Hara T, Hirota N, Terazima M. New Application of the Transient Grating Method to a Photochemical Reaction: The Enthalpy, Reaction Volume Change, and Partial Molar Volume Measurements. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp960250v] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Takashi Hara
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606, Japan
| | - Noboru Hirota
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606, Japan
| | - Masahide Terazima
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606, Japan
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