Affiliation: | 1. Department of Chemistry, Graduate School of Science, Tohoku University, 6‐3 Aza‐Aoba, Aramaki, Aoba‐ku, Sendai 980‐8578 (Japan), Fax: (+81)?22‐795‐6548 http://coord.chem.tohoku.ac.jp/~sakutai/;2. Department of Advanced Material Science, The University of Tokyo, Chiba (Japan);3. CREST (JST), Saitama (Japan);4. Department of Applied Physics, Nagoya University (Japan) |