1. Department of Chemistry, University of Bath, Bath, BA2 7AY (UK)
2. Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Didcot, Oxon OX11 0FA (UK)
3. Diamond Light Source Ltd, Diamond House, Harwell Science and Innovation Campus, Didcot, Oxon, OX11 0DE (UK)
4. Central Laser Facility, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, Oxon, OX11 0QX (UK)