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Impressum
(c) 2002 BMO

"Stability and reaction dynamics of trifluorinated indolylfulgides"
T. Brust, S. Draxler, A. Popp, X. Chen, W. J. Lees, W. Zinth, M. Braun
Chemical Physics Letters 477 (2009) 298-303


Abstract:
Quantum efficiencies and ultrafast dynamics of the ring-closure and ring-opening reaction of a trifluorinated dicyclopropyl indolylfulgide with improved photostability are investigated by stationary and ultrafast absorption spectroscopy. The ring-closure reaction occurs on the time scale of 200 fs and is found to be temperature independent (T = 287 - 333 K). However, an activated behaviour is observed for the ring-opening reaction. A comparison with the corresponding non-substituted indolylfulgide shows that the dicyclopropyl group favours the open isomer via lower cyclisation and higher cycloreversion quantum efficiencies and faster dynamics of the ring-opening reaction.

BMO authors (in alphabetic order):
Markus Braun
Thomas Brust
Simone Draxler
Alexander Popp
Wolfgang Zinth


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Letzte Änderung: 2016-09-14 13:34