1. Department of Liberal Arts and Basic Sciences, College of Industrial Technology, Nihon University, Narashino, Chiba 275-8575, Japan, Department of Life Science and Chemistry, Roskilde University, Roskilde DK-4000, Denmark, Department of Diversity Sciences, Graduate School of Science and Technology, Chiba University, Chiba 263-8522, Japan, and Department of Chemistry, The University of British Columbia, Vancouver, B.C., Canada V6T 1Z1