1. Department of Chemistry, Texas A&M University at Qatar, P.O. Box 23874, Education City, Doha, Qatar
2. Department of Chemistry and Biochemistry, University of Windsor, Windsor, Ontario, N9B3P4, Canada
3. Department of Chemistry, Texas A&M University, College Station, Texas United States
4. Department of Chemical Engineering, Texas A&M University at Qatar, PO Box 23874, Education City, Doha, Qatar