1. Department of Applied Chemistry, Osaka Prefecture University, Gakuen-cho, Sakai-shi, Osaka 599-8531, Japan, Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Ookayama, Meguro, Tokyo 152-8552, Japan, Yashima Super Structured-Helix Project, JST, Moriyama-ku, Nagoya 463-0003, Japan, and Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan