1. Chemistry Research Laboratory University of Oxford 12 Mansfield Road Oxford OX1 3TA United Kingdom
2. Centre for Advanced Electron Spin Resonance and Inorganic Chemistry Laboratory, Department of Chemistry University of Oxford South Parks Road Oxford OX1 3QR United Kingdom
3. School of Health Sciences University of Manchester Oxford Road Manchester M13 9PL United Kingdom
4. The Department of Chemistry, Photon Science Institute and the National EPR Research Facility University of Manchester Oxford Road Manchester M13 9PL United Kingdom