1. Department of Arts and Science, Texas A&M University at Qatar, Education City, Post Office Box 23874, Doha, Qatar
2. School of Materials Science and Engineering, China University of Petroleum (East China) Qingdao, Shandong 266580, People’s Republic of China
3. Department of Natural Sciences, Faculty of Science and Engineering, Manchester Metropolitan University, Manchester M15 6BH, United Kingdom
4. Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States