1. Departments of Chemistry and Materials Science and Engineering, University of North Texas, Denton, Texas, USA
2. Department of Chemistry, Yarmouk University, Irbid, Jordan
3. Department of Chemistry, Jordan University, Amman, Jordan
4. Department of Chemistry, Southern Methodist University, Dallas, Texas, USA
5. Department of Chemistry, University of Massachusetts, Amherst, Massachusetts, USA
6. Department of Chemistry, Washington State University, Pullman, Washington, USA
7. Department of Chemistry, Lebanon Valley College, Annville, Pennsylvania, USA