1. Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, United States
2. Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables,
Florida 33021, United States
3. Department of Physical Chemistry, Universidad de Alcalá, Ctra. Madrid-Barcelona Km. 33,600, Madrid 28871, Spain
4. Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States