USA 7s

Lotus Limited

Omicron Delta Kappa
Kappa Kappa Psi
Gesellschaft Deutscher Chemiker
The Chemical Society of Japan
The Société Chimique de France
The American Chemical Society, Organic Division, Inorganic Division, Fluorine Division
Sigma Xi
American Association for the Advancement of Science - Appointed AAAS Fellow 11/2007
The International Trumpet Guild
The Planetary Society
Member of the Editorial Board of the Journal of Heteroatom Chemistry 1/90 -
Member of the Editorial Board of Chemical Reviews 1991 - 2002
IUPAC, Commission on Inorganic Nomenclature (90-95)