1. Computational Simulation and Modelling Laboratory (CSML), Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
2. Thailand Center of Excellence in Physics, Commission on Higher Education, 328 Sri Ayutthaya Road, Bangkok 10400, Thailand
3. Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia