Vm. Hultgren et al., Formation of folded complexes retaining intramolecular H-bonding in the extraction of nickel(II) by phenolic oxime and aliphatic diamine ligands, CHEM COMMUN, (6), 2001, pp. 573-574
Solvent extraction of Ni-II by phenolic oximes is enhanced significantly by
addition of aliphatic diamines; octahedral [Ni(ii)(phenolate-oxime)(2)(dia
mine)] complexes have been characterised that contain a novel folded confor
mation, retaining intramolecular hydrogen bonding between the two oxime lig
ands.