1. Department of Chemistry, Faculty of Science, Nagoya University, Chikusa-ku, Nagoya, Aichi 464-01, Japan, Photon Factory, National Laboratory for High Energy Physics, Oho, Tsukuba, Ibaraki 305, Japan, Institute for Molecular Science, Myodaiji, Okazaki, Aichi 444, Japan, Department of Materials Science, Faculty of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 724, Japan, Department of Chemistry, Faculty of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113, Japan, and Ashigara Research...