1. Centre for Biospectroscopy and School of Chemistry, Monash University, Clayton, Victoria 3800, Australia, Department of Chemistry, University of Cape Town, Private Bag, Rondebosch 7701, South Africa, Department of Biochemistry and Centre of Excellence for Coherent X-ray Science, La Trobe University, Melbourne, Victoria 3086, Australia, and Australian Synchrotron, 800 Blackburn Road, Clayton, Victoria 3168, Australia