1. Department of Physics and Stephenson Institute for Renewable Energy, University of Liverpool, Liverpool, L69 7ZF, U.K.
2. Department of Chemistry, University College London, Christopher Ingold Building, London WC1H 0AJ, U.K.
3. Thomas Young Centre, University College London, Gower Street, London WC1E 6BT, U.K.
4. Department of Mechanical, Materials and Aerospace Engineering, School of Engineering, University of Liverpool, Liverpool, L69 3GH, U.K.
5. Diamond Light Source Limited, Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, U.K.