1. Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada, Department of Chemistry and Pharmacy & Interdisciplinary Center of Molecular Materials (ICMM), University of Erlangen-Nuremberg, Henkestrasse 42, 91054 Erlangen, Germany, Department of Physics, Wake Forest University, Winston-Salem, North Carolina 27109, United States, and Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States