1. Department of Chemistry,
Faculty
of Mathematics and Science, University of Indonesia, Kampus UI Depok, Jakarta 16424, Indonesia
2. Department of Chemistry, Faculty
of Science and Technology, Keio University, Hiyoshi 3-14-1, Yokohama 223-8522, Japan
3. CREST, JST, 3-14-1 Hiyoshi,
Yokohama 223-8522, Japan