1. Department of Chemistry University of North Texas Denton TX 76203 USA
2. Department of Chemistry College of Science King Saud University Riyadh 11451 Saudi Arabia
3. Department of Chemistry University of South Florida 4202 East Fowler Avenue Tampa FL 33620 USA
4. ChemMatCARS Center for Advanced Radiation Sources University of Chicago 9700 S. Cass Avenue Argonne IL 60439 USA
5. Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA