1. Department of Chemical and Biomolecular Engineering University of California, Berkeley Berkeley CA 94720 USA
2. Institut für Physikalische Chemie Westfälische Wilhelms-Universität Münster Münster Germany
3. Center for Soft Nanoscience Univeristy of Münster Busso-Peus-Straße 10 48149 Münster Germany
4. Molecular Graphics and Computation Facility College of Chemistry University of California, Berkeley Berkeley CA 94720 USA
5. Chevron Energy Technology Company Richmond CA 94804 USA