Organization The Royal Society

University of California, Berkeley (Professor, Chemistry, 19 86 | 20 15)

University of Pennsylvania (Professor, Chemistry, 19 83 | 19 85)

University of Illinois, Urbana-Champaign (Assistant Professor, 19 70, Professor, 19 77 | 19 83))

Royal Society

American academy of arts and sciences

University of California, San Diego (Postdoctoral Researcher, 19 69 | 19 70)

Columbia University (Visiting Professor, 19 77 - 19 78

Ecole Normale Supérieure, Lyon (Directeur de recherches, 19 92)

University of Oxford (Hinshelwood Lecturer, 19 93)

Merton College, Oxford (Visiting Fellow, 20 01)

University of Oxford (Schlumberger Visiting Professor, 20 03 and 20 04)

St. John's College, University of Cambridge (Overseas Visiting Scholar, 20 08 and 20 11)

American Physical Society (Fellow, 19 82)

National Academy of Sciences (Member, 19 95)

American Academy of Arts and Sciences (Member, 19 95)

American Chemical Society (Fellow, 20 09)

James Richardson & Sons, Limited

Dome Petroleum

Ajax Petroleum

Norcen Resources

Power Corporation of Canada

Petro-Canada

United Nations

Royal Society of Canada

Royal Architectural Institute of Canada

David Suzuki Foundation

Medical Research Council, Harwell

University of Sheffield

University of Bristol

Institut Laue-Langevin

Leicester Polytechnic

Science and Engineering Research Council