1. Department of Chemistry
2. Graduate School of Science
3. Tohoku University
4. Sendai
5. Japan
6. Department of Applied Physics
7. Nagoya University
8. Nagoya 464-603
9. Institute of Inorganic and Applied Chemistry
10. University of Hamburg
11. 20146 Hamburg
12. Germany
13. Division of Chemistry
14. Kyoto University
15. Kyoto 606-8502
16. Research Group of Solid Material Chemistry
17. Hiroshima University
18. Hiroshima