1. Department of Chemistry; State University of New York at Stony Brook; Stony Brook NY 11794-3400 USA
2. Department of Materials Sciences and Engineering; State University of New York at Stony Brook; Stony Brook NY 11794-2275 USA
3. Energy Sciences Directorate, Interdisciplinary Sciences Building; Building 734; Brookhaven National Laboratory; Upton NY 11973 USA
4. Condensed Matter Physics and Materials Sciences Department; Building 480; Brookhaven National Laboratory; Upton NY 11973 USA