Design and Function of Pre-organised Outer-Sphere Amidopyridyl Extractants for Zinc(II) and Cobalt(II) Chlorometallates: The Role of CH Hydrogen Bonds. - Ellis, Ross J.; Chartres, Jy; Henderson, David K.; Cabot, Rafel; Richardson, Patricia R.; White, Fraser J.; Schröder, Martin; Turkington, Jennifer R.; Tasker, Peter A.; Sole, Kathryn C. (Chemistry - A European Journal, 2012)