1. Department of Chemistry & Biochemistry, University of North Carolina Wilmington, Wilmington, North Carolina 28409, United States
2. Analytical Research & Development, Merck & Company Inc., Rahway, New Jersey 07065, United States
3. Analytical Research & Development, Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
4. Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, United States
5. Department of Chemistry, Seton Hall University, South Orange, New Jersey 07079, United States