1. Department of Chemistry, Smith College, Northampton, Massachusetts 01063, United States
2. Department of Chemistry and Biochemistry, DePauw University, Greencastle, Indiana 46135, United States
3. Department of Chemistry, Reed College, Portland, Oregon 97202, United States
4. Department of Chemistry, Harvey Mudd College, Claremont, California 91711, United States
5. Department of Chemistry and Biochemistry, James Madison University, Harrisonburg, Virginia 22807, United States
6. Department of Natural Sciences, The University of Michigan—Dearborn, Dearborn, Michigan 48128, United States
7. Department of Chemistry, Hope College, Holland, Michigan 49422, United States
8. Department of Chemistry, Earlham College, Richmond, Indiana 47374, United States
9. Joint Science Department of the Claremont Colleges, Claremont, California 91711, United States