1. Department of ChemistryUniversity of Reading, Whiteknights Reading RG6 6AD UK
2. School of ChemistryTrinity College Dublin Dublin 2 Ireland
3. Diamond Light Source, Harwell Science and Innovation CampusDidcot Oxfordshire OX11 0DE UK
4. Trinity Biomedical Sciences Institute Pearse St. Dublin 2 Ireland
5. Central Laser FacilityResearch Complex at Harwell, STFC Rutherford Appleton LaboratoriesDidcot Oxfordshire OX11 0QX UK
6. School of ChemistryUniversity College Dublin, Belfield Dublin 4 Ireland