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Impressum
(c) 2002 BMO

"Ultrafast ring opening reaction of a photochromic indolyl-fulgimide"
S. Malkmus, F.O. Koller, B. Heinz, W.J. Schreier, T.E. Schrader, W. Zinth, C. Schulz, S. Dietrich, K. Rück-Braun, M. Braun
Chemical Physics Letters 417 (2006) 266 - 271


Abstract:
The photo-induced ring-opening reaction C->E of a photochromic indolyl-fulgimide is investigated by sub-picosecond pump–probe spectroscopy in the visible and infrared spectral range. The thermally stable C-isomer shows a pronounced absorption in the visible spectral range without spectral overlap with the absorption of the E- and Z-isomer. The comparison of infrared and visible transient absorption data allows to assign the observed exponential 2.1 ps dynamics to the ring-opening reaction and the non-exponential 10–40 ps component to the cooling of the hot molecules. The transient absorption spectra taken 80 ps after photo-excitation are identical with the steady state difference spectra.

BMO authors (in alphabetic order):
Markus Braun
Bjoern Heinz
Florian Koller
Stephan Malkmus
Tobias Schrader
Wolfgang Schreier
Wolfgang Zinth

Assoziierte Projekte:
Femtosekunden Untersuchung ultraschneller molekularer Schalter
Shaping of light pulses in the femtosecond time regime


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Letzte Änderung: 2016-09-14 13:34