1. Department of Chemistry
2. College of Science
3. King Saud University
4. Riyadh 11451
5. Saudi Arabia
6. Institute of Inorganic Chemistry
7. University of Mainz
8. 55099 Mainz
9. Germany
10. Materials Science and Engineering Program
11. Division of Physical Science and Engineering
12. King Abdullah University of Science and Technology
13. Thuwal 23955-6900