1. Chemistry Education Division, University of Mataram, Jalan Majapahit No 62, Mataram 83125, Indonesia
2. Austrian-Indonesian Centre for Computational Chemistry, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia
3. Department of Applied Chemistry, Chaoyang University of Technology, No. 168, Jifeng E. Road, Wufeng District, Taichung 41349, Taiwan