Polymeric dihydroxydiphthalatotricobalt(II)

Abstract

In the crystal structure of dihydroxydiphthalatotricobalt(II), [Co(3)(C(8)H(4)O(4))(2)(OH)(2)](n), two of the four independent Co atoms lie at special positions of site symmetry 2. The hydroxy groups link three Co atoms to form a pyramidal Co(3)O unit, and adjacent Co(3)O units are linked through the Co base atoms into a honeycomb layer motif. Each of the phthalate dianions uses the O atoms of one carboxyl group to bind to three Co atoms, the bonding mode giving rise to six-coordinate Co atoms.