1. Advanced Materials Laboratory, Sandia National Laboratories, 1001 University Boulevard, SE, Albuquerque, New Mexico 87106, United States
2. Department of Chemistry, College of the Holy Cross, Box C, 1 College Street, Worcester, Massachusetts 01610, United States
3. Geochemistry Department, Sandia National Laboratories, PO Box 5800, MS 0754, Albuquerque, New Mexico 87185-0754, United States
4. Department of Chemistry, University of Hawaii - Manoa, 2545 McCarthy Mall, Honolulu, Hawaii 96822-2275, United States