1. Department of Synthetic Chemistry and Biological Chemistry, Faculty of Engineering, Kyoto University, Sakyo-ku, Kyoto 606-01, Japan, The Institute for Fundamental Chemistry, 34-4 Takano Nishi-Hiraki-cho, Sakyo-ku, Kyoto 606, Japan, Research Center, Denki Kagaku Kogyo Co., Ltd., 3-5-1 Asahimachi, Machida-shi Tokyo 194, Japan, and Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, Hongo, Tokyo 113, Japan