1. Department of Chemistry & Biochemistry, University of Mississippi, University, Mississippi 38677-1848, United States
2. Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
3. Cleveland Central High School, 300 West Sunflower Road, Cleveland, Mississippi 38732, United States
4. MS 245-3, NASA Ames Research Center, Moffett Field, California 94035, United States