Citation: Ross S. Forgan; Benjamin D. Roach; Peter A. Wood; Fraser J. White; John Campbell; David K. Henderson; Eduardo Kamenetzky; Fiona E. McAllister; Simon Parsons; Elna Pidcock; Patricia Richardson; Ronald M. Swart; Peter A. Tasker (2011). Using the Outer Coordination Sphere to Tune the Strength of Metal Extractants. Inorganic Chemistry, 50, pp. 4515-4522.