Bis(2,6-dimethylanilinium) diaquabis(dihydrogen diphosphato-κ2O,O′)cobaltate(II)

Abstract

In the title compound, (C8H12N)2[Co(H2P2O7)2(H2O)2], the Co2+ ion lies on a crystallographic inversion centre and adopts a slightly distorted octahedral CoO6 coordination geometry arising from two chelating diphosphate [H2P2O7]2− ligands and two trans water molecules. In the crystal, the components are linked by O—H...O, N—H...O and C—H...O hydrogen bonds and weak aromatic π–π stacking [shortest centroid–centroid separation = 3.778 (2) Å] interactions. (001) layers of alternating organic cations and complex inorganic anions are apparent.