Outer-sphere amidopyridyl extractants for zinc(ii) and cobalt(ii) chlorometallates.
Protonated amidopyridyl ligands show high selectivity for the extraction of [CoCl(4)](2-) or [ZnCl(4)](2-) over chloride ion into organic media via the formation of N-H and C-H hydrogen-bond donors to the outer coordination spheres of the chlorometallates.
Ellis
Ross J
RJ
University of Edinburgh, School of Chemistry, West Mains Road, Edinburgh, UK EH9 3JJ.
Chartres
Jy
J
Sole
Kathryn C
KC
Simmance
Timothy G
TG
Tong
Christine C
CC
White
Fraser J
FJ
Schröder
Martin
M
Tasker
Peter A
PA