1. Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698, USA
2. Chemical Abstracts Service, 2540 Olentangy River Rd, Columbus, Ohio, 43202, USA
3. Research Centre for Crystalline Materials, School of Science and Technology, Sunway University, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia