1. Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
2. Hyogo Prefectural Institute of Technology, Kobe, Hyogo 654-0037, Japan
3. Center for Promotion of Higher Education, Kogakuin University, Hachioji, Tokyo 192-0015, Japan
4. School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K.
5. Japan Synchrotron Radiation Research Institute (JASRI), Sayo-gun, Hyogo 679-5198, Japan
6. Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
7. Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
8. Department of Chemistry, Faculty of Science, National Taiwan Normal University, Taipei 11677, Taiwan