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Exploring the Mechanism of IR–UV Double‐Resonance for Quantitative Spectroscopy of Protonated Polypeptides and Proteins
Author(s) -
Nagornova Natalia S.,
Rizzo Thomas R.,
Boyarkin Oleg V.
Publication year - 2013
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201301656
Subject(s) - protonation , photodissociation , spectroscopy , infrared spectroscopy , chemistry , infrared , resonance (particle physics) , mechanism (biology) , absorption spectroscopy , chemical physics , photochemistry , physics , atomic physics , optics , organic chemistry , quantum mechanics , ion
Spectroscopic fingerprint : Infrared–ultraviolet double resonance photodissociation is used for conformational assignment of the electronic spectra of a cold protonated decapeptide (see picture). A mechanism of the IR–UV depletion spectroscopy is proposed and a procedure of using it for measurements of absolute absorption cross‐sections of vibrational transitions is elaborated.