1. Department of Chemistry, Faculty of Science, Kyushu University, Ropponmatsu, Chuo-ku, Fukuoka 810-8560, Japan; Department of Chemistry, Fukuoka University of Education, Akama, Munakata, Fukuoka 811-4192, Japan; and The Center of Advanced Instrumental Analysis, Kyushu University, Kasuga, Fukuoka 816-8580, Japan