1. Department of Chemistry and Center for Optical Materials Science and Engineering Technologies (COMSET) Clemson University 29634‐0973 Clemson SC USA
2. Department of Chemistry and Biochemistry Eastern Illinois University 61920 Charleston IL USA
3. Department of Chemistry and Biochemistry University of South Carolina 29208 Columbia SC USA
4. 485 H.L. Hunter Laboratories 29634 Clemson SC USA