 2001- |
 Richard M. and Patricia H. Noyes Professor of Chemistry, University of Oregon |
| 1998-01 |
Knight Professor of Liberal Arts and Sciences, University of Oregon |
| 1991- |
Professor of Chemistry, University of Oregon |
| 1991-95 |
Director, Chemical Physics Institute, University of Oregon |
| 1985-91 |
Associate Professor of Chemistry, University of Oregon |
| 1980-85 |
Assistant Professor of Chemistry, Bryn Mawr College |