Werdegang:
Since 10/2002 Professor em. at the Department of Chemistry of the Philipps University of Marburg
2/1973 to 10/2002 Professor of Physical Chemistry at the Philipps-University  of  Marburg. Research interest in chemical physics: Bridging the gas and condensed phases: Electronic properties of small metal- clusters and molecular clusters, fluid metals an semiconductors in the vapour-liquid critical region, nucleation phenomena, properties of liquid alloys, wetting phenomena
8/1997 to 8/2001 Director of the Institute of Physical, Nuclear- and Macromolecular Chemistry at the Philipps-University of Marburg
10/1996 to 7/1997 Dean of the Faculty of Physical Chemistry at the Philipps-University of Marburg
6 to 12/1993 Guest Professor at the Institute for Material Research, Tohoku University, Sendai
9 and 10/1987 George A. Miller-Professor of chemical science at the University of Illinois at Urbana-Champaign, USA
1986 to 1987 Dean of the Faculty of Physical Chemistry of the Philipps-University Marburg
4 and 5/1985 Guest Professor at the Physics Department of the Kyoto-University, Fellow of the Japanese Society for the Promotion of Science
3 to 7/1978 Guest Professor at Chemistry Department of the University of Tel-Aviv
1975 to 1976 Dean of the Faculty of Physical Chemistry of the Philipps-University Marburg
2/1971 to 2/1973 Professor of Physical Chemistry at the University of Karlsruhe
3/1963 to 2/1971 Staff-member of the Institute of Physical Chemistry, University of Karlsruhe
1968 Visiting scientist at the Engineering Department of the Brown University, Providence, USA
1967 Visiting scientist at the Chemistry Department of the University of Tel Aviv

Forschungsschwerpunkte:
Bridging the gas and condensed phases: Electronic properties of small metal- clusters and molecular clusters, fluid metals and semiconductors in the vapour-liquid critical region, nucleation phenomena, properties of liquid alloys, wetting phenomena

Mitgliedschaften und Funktionen:
Gesellschaft Deutscher Naturforscher und Aerzte Gesellschaft Deutscher Chemiker
Deutsche Bunsengesellschaft fuer Physikalische Chemie Deutsche Physikalische Gesellschaft
International Association for the Advancement of High Pressure, Science and Technology European High Pressure Research Group
Member of the Deutsche Akademie der Naturforscher Leopoldina, Halle Corresponding Member of the Rheinisch-Westfälische Akademie der Wissenschaften

Auszeichnungen und Ehrungen:
Walther-Nernst-Denkmuenze der Deutschen Bunsen-Gesellschaft, 1995
Raymond and Sackler Distinguished Lecturer in Chemistry, University of Tel-Aviv, 1995
Doctor Honoris Causa of the Humboldt-University, Berlin, 1999
Doctor Honoris Causa of the University of Rostock, Rostock, 2002