1. Department of Chemistry, Faculty of Science, Kanazawa University, Kanazawa 920, Japan
2. Institute for Nuclear Study, University of Toliyo, Tanasiii, Toliyo 188, Japan
3. Department of Chemistry, Faculty of Science, Nagoya University, Nagoya 464, Japan
4. School of Economics, Otemon Gakuin University, Ibaragi, Osaka 567, Japan