• 1973 - 1984 Referee for Inorganic Chemistry,
    Alexander von Humboldt-Stiftung

  • 1976 - 1980 Trustee of the Fonds der
    Chemischen Industrie in Frankfurt am Main

  • 1982 - 1997 Trustee of the
    "Fonds der Chemischen Industrie" in Göttingen

  • 1989 - 1995 Member of the Board of the
    "Engere Kuratorium des Fonds der Chemischen Industrie"

  • 1975 President of the local section Frankfurt
    of the GDCh (German Chemical Society)

  • 1982 - 1987 President of the branch
    "Chemical Education"of the GDCh

  • 1988 - 1995 Member of the
    Executive Board of the GDCh

  • 1986 - 1991 Member of the Scientific Board of the
    "Gesellschaft Deutscher Naturforscher und Ärzte"

  • 1988 - 1990 President of the Section Chemistry
    of the "Gesellschaft Deutscher Naturforscher und Ärzte"

  • 1987 - 1990 Member of the Scientific Board of
    Deutsches Museum in München

  • 1989 - Present Member of the Scientific Board of
    "Chemisches Institut Dr. Flad" in Stuttgart

  • 1987 - 1995 Member of the Scientific Board of
    "Chem Inform"

  • 1990 - Present Member of the Board of the
    Josef Stefan Institute, Ljubljana

  • 1991 - 1993 President of ADUC

  • 1992 President of the European Selection
    Committee of the Alexander von Humboldt Foundation

  • 1995 Vice President of the
    Gesellschaft Deutscher Chemiker

  • 1996 President of the
    Wöhler-Vereinigung of Inorganic Chemistry

  • 2002 President of the
    Akademie der Wissenschaften, Göttingen