1. Department of Chemistry, Graduate School, Kyung Hee University, Yongin-si, Gyeonggi-do17104, Republic of Korea
2. Department of Applied Chemistry and Institute of Natural Sciences, Kyung Hee University, Yongin-si, Gyeonggi-do17104, Republic of Korea
3. Department of Applied Mathematics, Kyung Hee University, Yongin-si, Gyeonggi-do17104, Republic of Korea