1. Department of Chemistry, Faculty of Science, The Hashemite University, Zarqa 13133, Jordan
2. Department of Physics, Virginia Tech, Blacksburg, VA 24061, USA
3. Department of Chemistry, Faculty of Science, The University of Jordan, Amman 11942, Jordan
4. Department of Chemistry, Faculty of Science, Al-Balqa Applied University, Al-Salt 19117, Jordan
5. Department of Chemistry, University of Saskatchewan, Saskatoon, SK S7N 5C9, Canada