1. Institute for Molecular Science, Okazaki National Research Institutes, Myodaiji, Okazaki 444-8585, Japan, Departments of Chemistry and Materials Science, Graduate School of Science, Osaka City University, Sugimoto 3-3-138, Sumiyoshi-Ku, Osaka 558-8585, Japan, and Fine Clay Co., Ltd., Osho-Kita 1−3−8, Amagasaki, Hyogo 660-0063, Japan