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Your search keyword '"Leónard, Jérémie"' showing total 11 results
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11 results on '"Leónard, Jérémie"'

1. Sub-picosecond C$=$C bond photo-isomerization: evidence for the role of excited state mixing

Author

Agathangelou, Damianos, Roy, Partha Pratim, del Carmen Marín, María, Ferré, Nicolas, Olivucci, Massimo, Buckup, Tiago, Léonard, Jérémie, and Haacke, Stefan

Subjects
Photo-isomerisation, Retinal proteins, Chromophore–protein coupling, Non-adiabatic dynamics, Photo-sensory proteins, Charge transfer state, Physics, QC1-999
Abstract

Sub-picosecond photo-isomerization is the major primary process of energy conversion in retinal proteins and has as such been in the focus of extensive theoretical and experimental work over the past decades. In this review article, we revisit the long-standing question as to how the protein tunes the isomerization speed and quantum yield. We focus on our recent contributions to this field, which underscore the concept of a delicate mixing of reactive and non-reactive excited states, as a result of steric properties and electrostatic interactions with the protein environment. Further avenues and new approaches are outlined which hold promise for advancing our understanding of these intimately coupled chromophore–protein systems.

Published
2021
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2. Multidimensional Vibrational Coherence Spectroscopy

Author

Buckup, Tiago, Léonard, Jérémie, Wong, Wai-Yeung, Editor-in-Chief, Olivucci, Massimo, Editor-in-Chief, Bayley, Hagan, Series Editor, Hughes, Greg, Series Editor, Hunter, Christopher A., Series Editor, Hwang, Seong-Ju, Series Editor, Ishihara, Kazuaki, Series Editor, Kirchner, Barbara, Series Editor, Krische, Michael J., Series Editor, Larsen, Delmar, Series Editor, Lehn, Jean-Marie, Series Editor, Luque, Rafael, Series Editor, Siegel, Jay S., Series Editor, Thiem, Joachim, Series Editor, Venturi, Margherita, Series Editor, Wong, Chi-Huey, Series Editor, Wong, Henry N.C., Series Editor, Yam, Vivian Wing-Wah, Series Editor, Yan, Chunhua, Series Editor, You, Shu-Li, Series Editor, Buckup, Tiago, editor, and Léonard, Jérémie, editor

Published
2019
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5. Engineering the vibrational coherence of vision into a synthetic molecular device

Author

Gueye, Moussa, Manathunga, Madushanka, Agathangelou, Damianos, Orozco, Yoelvis, Paolino, Marco, Fusi, Stefania, Haacke, Stefan, Olivucci, Massimo, Leónard, Jérémie, Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg (UNISTRA)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Department of Chemistry, Bowling Green State University, and Dipartimento di Biotechnologie, Chimica e Farmacia, Università di Siena

Subjects
Genetics and Molecular Biology (all), Rhodopsin, Alkylation, Light, Science, Biochemistry, Vibration, Article, Physics and Astronomy (all), Biomimetic Materials, Physics::Atomic and Molecular Clusters, Animals, Humans, Pyrroles, Physics::Chemical Physics, lcsh:Science, Vision, Ocular, ComputingMilieux_MISCELLANEOUS, Quantitative Biology::Biomolecules, Spectrum Analysis, Chemistry (all), Optical Devices, Chemical Engineering, Photochemical Processes, Indans, Retinaldehyde, Quantum Theory, lcsh:Q, [PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph], Biochemistry, Genetics and Molecular Biology (all)
Abstract

The light-induced double-bond isomerization of the visual pigment rhodopsin operates a molecular-level optomechanical energy transduction, which triggers a crucial protein structure change. In fact, rhodopsin isomerization occurs according to a unique, ultrafast mechanism that preserves mode-specific vibrational coherence all the way from the reactant excited state to the primary photoproduct ground state. The engineering of such an energy-funnelling function in synthetic compounds would pave the way towards biomimetic molecular machines capable of achieving optimum light-to-mechanical energy conversion. Here we use resonance and off-resonance vibrational coherence spectroscopy to demonstrate that a rhodopsin-like isomerization operates in a biomimetic molecular switch in solution. Furthermore, by using quantum chemical simulations, we show why the observed coherent nuclear motion critically depends on minor chemical modifications capable to induce specific geometric and electronic effects. This finding provides a strategy for engineering vibrationally coherent motions in other synthetic systems., The ultrafast, vibrationally coherent photoisomerization of rhodopsin is a model of efficient photomechanical energy conversion at the molecular scale. Here, the authors demonstrate a similar photoreaction in synthetic compounds, unraveling the underlying mechanism and discussing its implications.

Published
2018

6. Electronic Couplings in (Bio-) Chemical Processes

Author

Maiuri, Margherita, Brazard, Johanna, Wong, Wai-Yeung, Editor-in-Chief, Olivucci, Massimo, Editor-in-Chief, Bayley, Hagan, Series Editor, Hughes, Greg, Series Editor, Hunter, Christopher A., Series Editor, Hwang, Seong-Ju, Series Editor, Ishihara, Kazuaki, Series Editor, Kirchner, Barbara, Series Editor, Krische, Michael J., Series Editor, Larsen, Delmar, Series Editor, Lehn, Jean-Marie, Series Editor, Luque, Rafael, Series Editor, Siegel, Jay S., Series Editor, Thiem, Joachim, Series Editor, Venturi, Margherita, Series Editor, Wong, Chi-Huey, Series Editor, Wong, Henry N.C., Series Editor, Yam, Vivian Wing-Wah, Series Editor, Yan, Chunhua, Series Editor, You, Shu-Li, Series Editor, Buckup, Tiago, editor, and Léonard, Jérémie, editor

Published
2019
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7. Introduction to State-of-the-Art Multidimensional Time-Resolved Spectroscopy Methods

Author

Kraack, Jan Philip, Buckup, Tiago, Wong, Wai-Yeung, Editor-in-Chief, Olivucci, Massimo, Editor-in-Chief, Bayley, Hagan, Series Editor, Hughes, Greg, Series Editor, Hunter, Christopher A., Series Editor, Hwang, Seong-Ju, Series Editor, Ishihara, Kazuaki, Series Editor, Kirchner, Barbara, Series Editor, Krische, Michael J., Series Editor, Larsen, Delmar, Series Editor, Lehn, Jean-Marie, Series Editor, Luque, Rafael, Series Editor, Siegel, Jay S., Series Editor, Thiem, Joachim, Series Editor, Venturi, Margherita, Series Editor, Wong, Chi-Huey, Series Editor, Wong, Henry N.C., Series Editor, Yam, Vivian Wing-Wah, Series Editor, Yan, Chunhua, Series Editor, You, Shu-Li, Series Editor, Buckup, Tiago, editor, and Léonard, Jérémie, editor

Published
2019
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8. Towards Accurate Simulation of Two-Dimensional Electronic Spectroscopy

Author

Segarra-Martí, Javier, Mukamel, Shaul, Garavelli, Marco, Nenov, Artur, Rivalta, Ivan, Wong, Wai-Yeung, Editor-in-Chief, Olivucci, Massimo, Editor-in-Chief, Bayley, Hagan, Series Editor, Hughes, Greg, Series Editor, Hunter, Christopher A., Series Editor, Hwang, Seong-Ju, Series Editor, Ishihara, Kazuaki, Series Editor, Kirchner, Barbara, Series Editor, Krische, Michael J., Series Editor, Larsen, Delmar, Series Editor, Lehn, Jean-Marie, Series Editor, Luque, Rafael, Series Editor, Siegel, Jay S., Series Editor, Thiem, Joachim, Series Editor, Venturi, Margherita, Series Editor, Wong, Chi-Huey, Series Editor, Wong, Henry N.C., Series Editor, Yam, Vivian Wing-Wah, Series Editor, Yan, Chunhua, Series Editor, You, Shu-Li, Series Editor, Buckup, Tiago, editor, and Léonard, Jérémie, editor

Published
2019
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9. Two-Dimensional Resonance Raman Signatures of Vibronic Coherence Transfer in Chemical Reactions

Author

Guo, Zhenkun, Molesky, Brian P., Cheshire, Thomas P., Moran, Andrew M., Wong, Wai-Yeung, Editor-in-Chief, Olivucci, Massimo, Editor-in-Chief, Bayley, Hagan, Series Editor, Hughes, Greg, Series Editor, Hunter, Christopher A., Series Editor, Hwang, Seong-Ju, Series Editor, Ishihara, Kazuaki, Series Editor, Kirchner, Barbara, Series Editor, Krische, Michael J., Series Editor, Larsen, Delmar, Series Editor, Lehn, Jean-Marie, Series Editor, Luque, Rafael, Series Editor, Siegel, Jay S., Series Editor, Thiem, Joachim, Series Editor, Venturi, Margherita, Series Editor, Wong, Chi-Huey, Series Editor, Wong, Henry N.C., Series Editor, Yam, Vivian Wing-Wah, Series Editor, Yan, Chunhua, Series Editor, You, Shu-Li, Series Editor, Buckup, Tiago, editor, and Léonard, Jérémie, editor

Published
2019
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10. Ultrafast structural molecular dynamics investigated with 2D infrared spectroscopy methods

Author

Kraack, Jan Philip, Wong, Wai-Yeung, Editor-in-Chief, Olivucci, Massimo, Editor-in-Chief, Bayley, Hagan, Series Editor, Hughes, Greg, Series Editor, Hunter, Christopher A., Series Editor, Hwang, Seong-Ju, Series Editor, Ishihara, Kazuaki, Series Editor, Kirchner, Barbara, Series Editor, Krische, Michael J., Series Editor, Larsen, Delmar, Series Editor, Lehn, Jean-Marie, Series Editor, Luque, Rafael, Series Editor, Siegel, Jay S., Series Editor, Thiem, Joachim, Series Editor, Venturi, Margherita, Series Editor, Wong, Chi-Huey, Series Editor, Wong, Henry N.C., Series Editor, Yam, Vivian Wing-Wah, Series Editor, Yan, Chunhua, Series Editor, You, Shu-Li, Series Editor, Buckup, Tiago, editor, and Léonard, Jérémie, editor

Published
2019
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11. Two-Dimensional Spectroscopy at Terahertz Frequencies

Author

Lu, Jian, Li, Xian, Zhang, Yaqing, Hwang, Harold Y., Ofori-Okai, Benjamin K., Nelson, Keith A., Wong, Wai-Yeung, Editor-in-Chief, Olivucci, Massimo, Editor-in-Chief, Bayley, Hagan, Series Editor, Hughes, Greg, Series Editor, Hunter, Christopher A., Series Editor, Hwang, Seong-Ju, Series Editor, Ishihara, Kazuaki, Series Editor, Kirchner, Barbara, Series Editor, Krische, Michael J., Series Editor, Larsen, Delmar, Series Editor, Lehn, Jean-Marie, Series Editor, Luque, Rafael, Series Editor, Siegel, Jay S., Series Editor, Thiem, Joachim, Series Editor, Venturi, Margherita, Series Editor, Wong, Chi-Huey, Series Editor, Wong, Henry N.C., Series Editor, Yam, Vivian Wing-Wah, Series Editor, Yan, Chunhua, Series Editor, You, Shu-Li, Series Editor, Buckup, Tiago, editor, and Léonard, Jérémie, editor

Published
2019
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