1. Department
of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, United States
2. National
Research Council Postdoctoral Fellow, U.S. Naval Research Laboratory, Code 6111, Molecular Dynamics Section, Washington, District of Columbia 20375, United States
3. Nova Research, Inc., Alexandria, Virginia 22308, United States
4. U.S. Naval Research Laboratory, Code 6111, Molecular Dynamics Section, Washington, District of Columbia 20375, United States
5. Montana
Materials Science Program, Montana State University, Bozeman, Montana 59717, United States