1. Department of Chemistry, Faculty of Science, Okayama University of Science, 1−1 Ridaicho, Kita-ku, Okayama 700-0005, Japan
2. Department of Chemistry, Graduate School of Engineering Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-8531, Japan
3. Department of Applied Chemistry, Graduate School of Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
4. X-ray Research Laboratory, Rigaku Corporation, 3−9−12 Matsubaracho, Akishima, Tokyo 196-8666, Japan
5. Department of Chemistry, School of Science, Tokyo Institute of Technology, 2−12−1 Ookayama, Meguro-ku, Tokyo 152−8551, Japan