1. Department of Chemistry Graduate School of Science Kyoto University 606‐8502 Sakyo‐ku, Kyoto Japan
2. Department of Chemistry, Graduate School of Science and Engineering Shimane University 1060 Nishikawatsu, Matsue 690‐8504 Japan
3. Department of Chemistry National Chung Hsing University Taichung 402 Taiwan Republic of China
4. Department of Chemistry Faculty of Science and Research Center for Materials with Integrated Properties 274‐8510 Toho University Japan