1. Department of Chemistry, School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
2. Ashigara Research Laboratories, Fuji Photo Film Co. Ltd., 210 Nakanuma, Minami Ashigara, Kanagawa 250-0193, Japan
3. Department of Chemistry, Faculty of Science, Saitama University, Urawa, Saitama 338-8570, Japan