1. Laboratoire de Chimie de Coordination Organique, UMR7140-CNRS, Institut Le Bel, Université Louis Pasteur, 4 rue Blaise Pascal, 67000 Strasbourg Cedex, France, Applied Molecular Science, Institute for Molecular Science (IMS), Nishigounaka 38, Myoudaiji, Okazaki 444-8585, Japan, Department of Chemistry, Faculty of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi Hiroshima, Hiroshima 739-8526, Japan, and Department of Physics, Kyushu Institute of Technology, Tobata-ku, Kitakyushu 804-8550, Japan