1. Department of Chemistry , College of Science and Humanities, Shaqra University , Dawadmi 11911 , Saudi Arabia
2. Applied Organic Chemistry Department , National Research Centre , Dokki , Giza 12622 , Egypt
3. School of Chemistry, Cardiff University , Main Building, Park Place , Cardiff CF10 3AT, UK
4. Cornea Research Chair, Department of Optometry , College of Applied Medical Sciences, King Saud University , P.O. Box 10219 , Riyadh 11433, Saudi Arabia