Michelle L Kovarik1, Jill K Robinson2, Thomas J Wenzel3. 1. Department of Chemistry, Trinity College, Hartford, CT, 06106, USA. 2. Department of Chemistry, Indiana University, Bloomington, IN, 47405, USA. 3. Department of Chemistry and Biochemistry, Bates College, Lewiston, ME, 04240, USA. twenzel@bates.edu.