1. Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
2. Kathleen Lonsdale Materials Chemistry, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
3. Diamond Light Source Ltd., Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom
4. Thomas Young Centre, University College London, Gower Street, London WC1E 6BT, United Kingdom