1. Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan
2. Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road Pathum Wan Wang Mai, Bangkok 10330, Thailand
3. ICGM, Univ Montpellier, CNRS, ENSCM, 1919 route de Mende, Montpellier 34293 Cedex 5, France