1. Mulliken Center for Theoretical Chemistry
2. University of Bonn
3. D-53115 Bonn
4. Germany
5. Max Planck Institute for Chemical Energy Conversion
6. Imperial College London
7. London SW7 2AZ
8. UK
9. Theoretical Chemistry
10. Martin-Luther-University Halle-Wittenberg
11. D-06108 Halle
12. Department of Chemistry
13. Virginia Commonwealth University
14. Richmond
15. USA