1. Petrochemistry and Polymer Sciences Program, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
2. Faculty of Physics and Geosciences, Institute of Theoretical Physics, University of Leipzig, Leipzig, Germany
3. Faculty of Applied Science and Engineering, Khon Kaen University, Nong Khai, Thailand
4. Computational Chemistry Unit Cell, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
5. Department of Chemistry, Faculty of Science, Ramkhamhaeng University, Bangkok, Thailand