1. Laboratory
of Computational Science and Modeling, Institute of Materials, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
2. Thomas
Young Centre, London Centre for Nanotechnology and Department of Physics
and Astronomy, University College London, London WC1E 6BT, United Kingdom
3. Department
of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
4. School
of Mathematics and Physics, University of Queensland, Brisbane, 4072 Queensland Australia
5. Lawrence Livermore National Laboratory, Livermore, California 94550, United States
6. Department
of Chemistry, Stanford University, 333 Campus Drive, Stanford, California 94305, United States