1. Department
of Chemistry, University of Minnesota, 207 Pleasant Street, SE, Minneapolis, Minnesota 55455, United States
2. Department
of Chemistry and Biochemistry, Kettering University, 1700 University Avenue, Flint, Michigan 48504, United States
3. Department
of Chemistry and Biochemistry, St. Cloud State University, 720 Fourth Avenue South, St. Cloud, Minnesota 56301, United States