Institution: | 1. Department of Chemistry, Tohoku University, Aoba‐ku, Sendai, 980‐8578 (Japan), Fax: (+81)?22‐795‐6589 http://www.orgchem2.chem.tohoku.ac.jp/;2. Display Technology R&D Laboratories, Konica Minolta Technology Center Inc. 2970 Ishikawa‐machi, Hachioji‐shi, Tokyo 192‐8505 (Japan) |