1. Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, Department of Physics and Astronomy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, Department of Chemistry and Physics, Rowan University, Glassboro, New Jersey 08028, and 4Racah Institute of Physics, The Hebrew University, Jerusalem, 91904 Israel