1. Department of Chemistry, National Tsing Hua, Hsinchu 30013 Taiwan, Republic of China
2. Department of Chemistry, National Central University, Jhongli 32001, Taiwan, Republic of China
3. Institute of Chemistry, University of the Philippines, Quezon City, Philippines
4. Institute of Macromolecular Chemistry AS CR, v.v.i., Heyrovský Sq. 2, 16206, Prague 6, Czech Republic