1. Department
of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
2. Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
3. Chem11, Eugene, Oregon 97403, United States
4. Department
of Chemistry, The King’s University, Edmonton, Alberta T6B 2H3, Canada
5. Department
of Physics, The King’s University, Edmonton, Alberta T6B 2H3, Canada