Transient Two-Dimensional Infrared Spectroscopy in a Vibrational Ladder

Vincent Kemlin; Adeline Bonvalet; Louis Daniault; Manuel Joffre

doi:10.1021/acs.jpclett.6b01535

Transient Two-Dimensional Infrared Spectroscopy in a Vibrational Ladder

Université Paris-Saclay

Research output: Contribution to journal › Article › peer-review

Abstract

We report on transient 2D Fourier transform infrared spectroscopy (2DIR) after vibrational ladder climbing induced in the CO-moiety longitudinal stretch of carboxyhemoglobin. The population distribution, spreading up to seven vibrational levels, results in a nonequilibrium 2DIR spectrum evidencing a large number of peaks that can be easily attributed to individual transitions thanks to the anharmonicity of the vibrational potential. We discuss the physical origin of the observed peaks as well as the qualitative behavior of the subsequent dynamics governed by population relaxation in the vibrational ladder.

Original language	English
Pages (from-to)	3377-3382
Number of pages	6
Journal	Journal of Physical Chemistry Letters
Volume	7
Issue number	17
DOIs	https://doi.org/10.1021/acs.jpclett.6b01535
Publication status	Published - 1 Sept 2016
Externally published	Yes

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title = "Transient Two-Dimensional Infrared Spectroscopy in a Vibrational Ladder",

abstract = "We report on transient 2D Fourier transform infrared spectroscopy (2DIR) after vibrational ladder climbing induced in the CO-moiety longitudinal stretch of carboxyhemoglobin. The population distribution, spreading up to seven vibrational levels, results in a nonequilibrium 2DIR spectrum evidencing a large number of peaks that can be easily attributed to individual transitions thanks to the anharmonicity of the vibrational potential. We discuss the physical origin of the observed peaks as well as the qualitative behavior of the subsequent dynamics governed by population relaxation in the vibrational ladder.",

author = "Vincent Kemlin and Adeline Bonvalet and Louis Daniault and Manuel Joffre",

note = "Publisher Copyright: {\textcopyright} 2016 American Chemical Society.",

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AU - Kemlin, Vincent

AU - Bonvalet, Adeline

AU - Daniault, Louis

AU - Joffre, Manuel

PY - 2016/9/1

Y1 - 2016/9/1

N2 - We report on transient 2D Fourier transform infrared spectroscopy (2DIR) after vibrational ladder climbing induced in the CO-moiety longitudinal stretch of carboxyhemoglobin. The population distribution, spreading up to seven vibrational levels, results in a nonequilibrium 2DIR spectrum evidencing a large number of peaks that can be easily attributed to individual transitions thanks to the anharmonicity of the vibrational potential. We discuss the physical origin of the observed peaks as well as the qualitative behavior of the subsequent dynamics governed by population relaxation in the vibrational ladder.

AB - We report on transient 2D Fourier transform infrared spectroscopy (2DIR) after vibrational ladder climbing induced in the CO-moiety longitudinal stretch of carboxyhemoglobin. The population distribution, spreading up to seven vibrational levels, results in a nonequilibrium 2DIR spectrum evidencing a large number of peaks that can be easily attributed to individual transitions thanks to the anharmonicity of the vibrational potential. We discuss the physical origin of the observed peaks as well as the qualitative behavior of the subsequent dynamics governed by population relaxation in the vibrational ladder.

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DO - 10.1021/acs.jpclett.6b01535

M3 - Article

AN - SCOPUS:84984870816

SN - 1948-7185

VL - 7

SP - 3377

EP - 3382

JO - Journal of Physical Chemistry Letters

JF - Journal of Physical Chemistry Letters

IS - 17

ER -

Transient Two-Dimensional Infrared Spectroscopy in a Vibrational Ladder

Abstract

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