1. Department of Chemistry and Physics, Southeastern Louisiana University, SLU 10878, Hammond, Louisiana
70402, United States
2. Department of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336,
United States
3. Gaylord Chemical Company, 106 Galaria
Blvd., Slidell, Louisiana 70459-1209, United States
4. Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States