1. Department of Chemical Engineering, Stanford University 381 North South Mall, Stanford, CA 94305 (USA)
2. Stanford Synchrotron Radiation Lab 2575 Sand Hill Road Menlo Park, CA 94025 (USA)
3. Department of Chemistry, University of California One Shields Avenue, Davis, CA 95616 (USA)
4. IBM Almaden Research Center San Jose, CA 95120 (USA)