Radiationless decay from the ligand-to-metal charge-transfer state in the blue copper protein plastocyanin

Autor:	Maurice D. Edington, William J. Doria, Ruth E. Riter, William M. Diffey, Warren F. Beck
Rok vydání:	1997
Předmět:	Copper protein Chemistry Solvation General Physics and Astronomy Photochemistry Spectral line Metal Crystallography visual_art Intramolecular force visual_art.visual_art_medium Redistribution (chemistry) Physical and Theoretical Chemistry Ground state Plastocyanin
Zdroj:	Chemical Physics Letters. 275:119-126
ISSN:	0009-2614
DOI:	10.1016/s0009-2614(97)00738-0
Popis:	The cysteine S(p π ) → Cu 2+ d x 2 − y 2 ligand-to-metal charge-transfer (LMCT) state in plastocyanin exhibits a time-resolved pump-probe spectrum that has excited-state absorption and stimulated-emission components to the blue and red, respectively, of the absorption maximum. The LMCT state returns to the ground state by populating the d xz + yz → d x 2 − y 2 ligand-field (LF) state. The lack of hole-burned features in the time-resolved spectra implies the presence of intramolecular vibrational redistribution and/or protein-matrix solvation dynamics on a time scale that is shorter than the 125 fs lifetime of the LMCT state.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6497e7543999e00536adf4059938bd45 https://doi.org/10.1016/s0009-2614(97)00738-0 Zobrazit plný text záznamu Full Text from ScienceDirect