Title :
Conical intersection dynamics in a rhodopsin analog: 9-cis isorhodopsin
Author :
Polli, D. ; Brida, D. ; Manzoni, C. ; Spillane, K.M. ; Garavelli, M. ; Kukura, P. ; Mathies, R.A. ; Cerullo, G.
Author_Institution :
Dipt. di Fis., Politec. di Milano, Vinci, Italy
Abstract :
An important open question is understanding how the topography around a seam affects the dynamics of transitions between electronic states at CIs. This can be addressed by studying analogs of the visual pigment. In this work we compare the CI dynamics of rhodopsin with that of isorhodopsin, containing a 9-cis retinal which isomerizes around the 9=10 double bond and has a significantly lower quantum yield of only 0.22.
Keywords :
infrared spectra; isomerisation; molecular biophysics; optical variables measurement; proteins; visible spectra; 9-cis isorhodopsin; chemical bond; conical intersection dynamics; electronic states; isomerization; quantum yield; rhodopsin analog; seam affects;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4577-0533-5
Electronic_ISBN :
Pending
DOI :
10.1109/CLEOE.2011.5943521
