Diploma in chemistry, University Heidelberg, Germany, 1968. Doctor of Philosophy in Chemistry, University Heidelberg, Germany, 1971. Habilitation in Organic Chemistry, University Heidelberg, Germany, 1978.
Postdoctoral researcher, U. Heidelberg, 1971-1973, 75-78; postdoctoral researcher, University of California, Berkeley, 1973-1974; senior scientist, head research group, Max-Planck Institute für Kohlenforschung, Mülheim an der Ruhr, Germany, since 1978; professor of chemistry, U. Düsseldorf, Germany, since 1980.
Member German Chemical Society, American Chemical Society, German Society for Petroleum and Coal Science and Technology.
Married Margarethe Franziska Thielen, March 31, 1978 (deceased October 1981). 1 child, Florian Johannes. Married Anna Danuta Rufinska, June 3, 1988.
1 child, Alexander Stephan.