Polymeric dihydroxydiphthalatotricobalt(II)
Abstract
In the crystal structure of dihydroxydiphthalatotricobalt(II), Co3(C8H4O4)2(OH)2n, 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 Co3O unit, and adjacent Co3O 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.