Transient Two-Dimensional Infrared Spectroscopy in a Vibrational Ladder.
J Phys Chem Lett
; 7(17): 3377-82, 2016 Sep 01.
Article
em En
| MEDLINE
| ID: mdl-27508408
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.
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Base de dados:
MEDLINE
Tipo de estudo:
Qualitative_research
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article