Prof. Woodward began his scientific research in the group of Prof. Keith McLauchlan at the University of Oxford, one of the pioneers of time-resolved electron paramagnetic resonance and CIDEP (chemically induced dynamic electron polarization). EPR is a very powerful technique for studying radicals, their structure and interactions and their reactivity. When RPs are generated in a suitable photochemical reaction, they are often born in a state where their nuclear spin state distribution is very far from equilibrium. This gives rise to polarized EPR signals that provide unique and powerful information about the origin and reactions of the pair. Combined with the detailed structural information that EPR is known for, such techniques are very important weapons in the armoury of the spin chemist.
The Woodward group has used various forms of EPR in a number of different contexts - to study RP dynamics, to elucidate the mechanisms of photochemical processes and to study biologically important radical species.
"Elucidation of the Mechanism by Which Catecholamine Stress Hormones Liberate Iron from the Innate Immune Defense Proteins Transferrin and Lactoferrin," S. M. Sandrini, R. Shergill, J.R. Woodward, R. Muralikuttan, R. D. Haigh, M. Lyte, and P. P. Freestone, Journal of Bacteriology, 192(2), 587–594.
‘‘Evidence for a novel bisacylphosphine oxide photoreaction from TRIR, TREPR and DFT studies," R. S. Shergill, M. Haberler, C. B. Vink, H. V. Patten and J. R. Woodward, Phys. Chem. Chem. Phys., 11, 7248–7256 (2009).
"Alternative source of emissive CIDEP in the TREPR spectra of benzophenone in alcohols," A.R. Jones and J. R. Woodward, Mol. Phys., 104 (10-11), 1551 (2006).