1. Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
2. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, United States
3. Department of Chemistry, Hunter College of the City University of New York, New York, New York 10065, United States
4. Ph. D. Program in Chemistry, The Graduate Center of the City of New York, New York, New York 10016, United States
5. Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, United States