1. Fundamental Technology LaboratoryR&D Center, The Kansai Electric Power Co., Inc., 11–20 Nakoji 3-Chome, Amagasaki Hyogo 661–0974 Japan
2. Department of Molecular Chemistry and BiochemistryDoshisha University 1–3 Tataramiyakodani, Kyotanabe Kyoto 610–0321 Japan