Affiliation: | 1. Department of Chemistry, The University of Tokyo, Hongo, Bunkyo‐ku, Tokyo 113‐0033 (Japan), Fax: (+81)?3‐5800‐6889;2. Nakamura Functional Carbon Cluster Project, ERATO, Japan Science and Technology Agency, Hongo, Bunkyo‐ku, Tokyo 113‐0033 (Japan) |