1. Department
of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
2. Materials
and
Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433, United States
3. Department
of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
4. Materials
Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States