Ultrafast vibrational spectroscopy of the flavin chromophore

Kondo, Minako, Nappa, Jérôme, Ronayne, Kate L., Stelling, Allison L., Tonge, Peter J. and Meech, Stephen R. (2006) Ultrafast vibrational spectroscopy of the flavin chromophore. The Journal of Physical Chemistry B, 110 (41). pp. 20107-20110. ISSN 1520-6106

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Abstract

Ultrafast time-resolved infrared (TRIR) spectra of flavin adenine dinucleotide ( FAD) and the anion of lumiflavin (Lf(-)) are described. Ground-state recovery and excited-state decay of FAD reveal a common dominant ultrafast relaxation and a minor slower component. The Lf(-) transient lacks a fast component. No intermediate species are observed, suggesting that the quenching mechanism is internal conversion promoted by interaction of the adenine and isoalloxazine rings in FAD. Modes are assigned, and the potential for extension of the TRIR method to photoactive proteins is discussed.

Item Type: Article
Faculty \ School: Faculty of Science > School of Chemistry
Depositing User: Rachel Smith
Date Deposited: 26 Jul 2011 14:49
Last Modified: 02 Jun 2020 23:42
URI: https://ueaeprints.uea.ac.uk/id/eprint/34191
DOI: 10.1021/jp0650735

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