D. E. Jiang1 and Emily A. Carter2 1Department of Chemistry and Biochemistry, Box 951569, University of California, Los Angeles, California 90095-1569, USA 2Department of Mechanical and Aerospace Engineering and Program in Applied and Computational Mathematics, Princeton University, Princeton, New Jersey 08544-5263, USA Received 17 May 2005; revised manuscript received 9 August 2005; published 1...