Bis(2-methoxybenzylammonium) diaquabis(dihydrogen diphosphato- κ2 O,O′)cobaltate(II) dihydrate

Abstract

The title compound, (C8H12NO)2[Co(H 2P2O7)2(H2O)2] ·2H2O, crystallizes isotypically with its MnII analogue. It consists of alternating layers of organic cations and inorganic complex anions, extending parallel to (100). The complex cobaltate(II) anion exhibits-1 symmetry. Its Co2+ atom has an octahedral coordination sphere, defined by two water molecules in apical positions and two H 2P2O72- ligands in equatorial positions. The cohesion between inorganic and organic layers is accomplished by a set of O-H..O and N-H..O hydrogen bonds involving the organic cation, the inorganic anion and the remaining lattice water molecules.