Prof. Stefan Hecht, Ph.D.
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Department of Chemistry
& IRIS Adlershof
Humboldt-Universität zu Berlin
Brook-Taylor-Str. 2
12489 Berlin, Germany
DWI - Leibniz Institute for
Interactive Materials
& RWTH Aachen University
Forckenbeckstr. 50
52074 Aachen, Germany
www.dwi.rwth-aachen.de
Administrative Assistant:
Claudia Rothkirch
Phone: +49 (0)30 2093-7308
Fax: +49 (0)30 2093-6940
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News Details
Solving azobenzene mystery
Together with Marc Reimann from the Kaupp group, Ellen has been able to unravel a mystery in the thermal isomerization of azobenzenes and decipher its detailed mechanism. In a joint theoretical and experimental effort, our team could find that azobenzenes prefer to cross - rather than overcome - the thermal barrier in the singlet state via the lower lying triplet state surface. This modified mechanism is able to account for the measured activation entropies and moreover opens the door for modifying thermal half-lifes of cis azobenzenes by the presence of heavy atoms in the environment. The study has just been accepted by The Journal Physical Chemistry Letters. Congratulations Ellen and Marc!
28.10.2022
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