1. Computational Research Division Lawrence Berkeley National Laboratory Berkeley California
2. Department of Chemistry University of Washington Seattle Washington
3. Dipartimento di Scienze Chimiche Università di Napoli “Federico II”, Complesso Universitario di M.S. Angelo Naples Italy
4. Department of Chemistry and Biochemistry Florida State University Tallahassee Florida
5. Department of Chemistry Yale University New Haven Connecticut
6. Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena California
7. Department of Chemistry Virginia Tech Blacksburg Virginia