Einladung zum Colloquium
der Physikalischen und Theoretischen Chemie
Prof. Dr. Bernd Abel
Leibniz Institute of Surface Modification (IOM)
Wilhelm-Ostwald-Institute of Physical and Theoretical Chemistry, Leipzig
"Counter-ion stabilized carbenes and room-temperature conversion
of carbon dioxide in ionic liquids"
Mittwoch, 22. Juni 2016, 17:15 Uhr
Hörsaal Takustr. 3
Ionic liquids are considered as tunable designer liquids that provide the environment or active species for chemical reactions. N-Heterocyclic carbenes - in particular in ionic liquids - are known to be important organocatalysts enabling novel and specific routes for general synthetic strategies. There has been a lot of speculation about the role and the existence of carbenes in ionic liquids. Employing liquid microbeam mass spectrometry we prove that cation stabilized carbenes do exist in ionic liquids as reactive intermediates, which settles a long-standing discussion and dispute. On the other hand we show that carbenes may correlate with and be the origin of the strong chemisorption of carbon dioxide. Finally, we show that room-temperature catalytic conversion of CO2 in ionic liquids is possible.
22.06.2016 | 17:15 - 18:30