1. Soft Materials Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, Build. CE41, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
2. Frontier Center for Organic Materials, Yamagata University, 4-3-16 Yonezawa, Yamagata 992-8510, Japan
3. Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Yonezawa, Yamagata 992-8510, Japan