1. Department of Chemistry, Graduate School of
Science, Osaka Prefecture University, 1-1
Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
2. Equipe Organométalliques: Matériaux
et Catalyse, Institut des Sciences Chimiques de Rennes, UMR 6226, CNRS-Université de Rennes 1, Campus de Beaulieu,
35042 Rennes Cedex, France