1. Department of Chemistry, Northwestern University, 2145 N. Sheridan Road, Evanston, Illinois 60208, United States
2. Department of Chemistry, Michigan State University, 320 Chemistry Bldg., East Lansing, Michigan 48824, United States
3. Functional Properties Group, Ceramics Division, A256 MATLS, National Institute of Standards and Technology (NIST), 100 Bureau Drive, Stop 8520 Gaithersburg, Maryland 20899, United States