1980 Diploma, University of Munich
1980-84 Doctoral thesis with Prof. Klaus Gollnick, University of Munich
1984-85 Postdoctoral researcher with Prof. Waldemar Adam, University of Würzburg
1986-87 Postdoctoral researcher with Prof. Dieter Seebach, ETH Zurich, Switzerland, DFG postdoctoral fellowship
1987 Postdoctoral researcher with Prof. Ernst Fischer, Weizmann Institute of Science, Israel
1993 Visiting Professor at the Department of Chemistry, University of Wisconsin, USA
1996 Visiting Professor at the National Institute of Materials and Chemical Research, Tsukuba, Japan
since 1994 Professor of Organic Chemistry at the University of Cologne, Germany
1997 Grammaticakis-Neumann Prize of the Swiss Society for Photochemistry and Photophysics
2000 Visiting Professor at the National Institute of Materials and Chemical Research, Tsukuba, Japan
2001-2004 Chairman of the Photochemistry Division of the German Chemical Society (GDCh)
2006 Visiting Professor at the Chemistry Research Promotion Center, NSC, Taiwan
2007-2010 Titular Member: IUPAC OBC Division and Subcommittee on Photochemistry
2009-2015 Dean of Studies of the Math.-Nat. Faculty of the University of Cologne
2009 Honda-Fujishima Award of the Japanese Association for Photochemistry
2012-2016 IUPAC: Secretary of the Organic and Biomolecular Chemistry Division; Member of the Subcommittee on Photochemistry
since 2018: Chairman of the Subcommittee on Photochemistry of IUPAC