1. Diamond Light Source Ltd., Harwell Science and Innovation Campus, Didcot OX11 0DE, Oxfordshire, U.K.
2. School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, West Midlands, U.K.
3. School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, North Haugh, University of St Andrews, St Andrews KY16 9ST, Fife, U.K.