1. Department
of Chemistry, Pomona College, 645 North College Ave., Claremont, California 91711, United States
2. Department
of Applied Physics, Chalmers University of Technology, 412 96 Göteborg, Sweden
3. Swann Scientific
Consulting Ltd., 110 Sandy Lane, Lymm, Cheshire, U.K.
4. Department
of Chemistry, University of Washington, 109 Bagley Hall, Seattle, Washington 98195, United States
5. Institute
of Physical Chemistry, University of Göttingen, 37077 Göttingen, Germany