1. Department of Chemistry, Wichita State University, 1845 Fairmount, Wichita, Kansas 67260-0051
2. School of Materials Science, Japan Advanced Institute of Science and Technology (JAIST), Nomi, Ishikawa, 923-1292 Japan
3. IMRAM, Tohoku University, Katahira, Sendai, and Fullerene Group, National Institute for Material Science, Tsukuba, 305-0044 Japan