1. Theoretical and Physical Chemistry
Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, Athens 116 35, Greece
2. Department of Chemistry, University of Crete, PO Box 2208, Heraklion 710 03,
Crete, Greece
3. School of Materials
Science, Japan Advanced Institute of Science and Technology,
Asahidai, Nomi, 923-1292, Japan
4. CarbonPhotoScience Lab, Kitanakayama 2-1-6, Sendai, 981-3215, Japan
5. Department of Chemistry, Faculty
of Science and Technology, Keio University, Yokohama 223-8522, Japan