1. Department of Chemistry, Case Western Reserve University, Cleveland, Ohio, 44106, United States, http://www.case.edu/chem/faculty/protasiewicz/group/Protasiewicz/Welcome.html
2. Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, San Diego, California, 92093, United States
3. Department of Chemistry and Biochemistry, University of Massachusetts Dartmouth, North Dartmouth, Massachusetts, 02747, United States