1. Contribution from the Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan, Department of Functional Polymer Science, Faculty of Textile Science and Technology, Shinshu University, Ueda 386-8567, Japan, Fukuoka Industry, Science & Technology Foundation, Fukuoka Industrial Technology Center, Chikushino 818-8540, Japan, and Department of Chemistry, Faculty of Science, Kumamoto University, Kumamoto 860-8555, Japan