(Naphthalene-2,3-diolato-κ2O,O′)[tris(2-pyridylmethyl)amine-κ4N]cobalt(III) hexafluoridophosphate hemihydrate

Abstract

In the title complex, [Co(C10H6O2)(C18H18N4)]PF6·0.5H2O, the CoIII ion is six-coordinated in a distorted octahedral geometry by four N atoms from a tris(2-pyridylmethyl)amine ligand and two O atoms from a naphthalene-2,3-diolate ligand. The asymmetric unit contains two complex cations, two hexafluoridophosphate anions and one uncoordinated water molecule. In one of the hexafluoridophosphate anions, four of the F aroms are disordered over two sets of sites in a 0.632 (11):0.368 (11) ratio. In the crystal, the cations, anions and water molecules are connected by O—H...O and O—H...F hydrogen bonds. π–π interactions are present between the pyridine rings [centroid–centroid distance = 3.814 (1) Å].