Research Centre for Spectrochemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan, Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-85821, Japan, Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Yoshida, Kyoto 606-8501, Japan, and Institute for Molecular Science and CREST, Okazaki 444-8585, Japan(At 2003-08-23)
