Materials Data on CoCuP2O7 by Materials Project
CoCuP2O7 crystallizes in the triclinic P1 space group. The structure is three-dimensional. Co2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Co–O bond distances ranging from 1.99–2.56 Å. Cu2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Cu–O bond distances ranging from 1.98–2.53 Å. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form corner-sharing PO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.52–1.59 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form corner-sharing PO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.52–1.59 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to one Co2+, one Cu2+, and one P5+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one Co2+, one Cu2+, and one P5+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Co2+, one Cu2+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Co2+, one Cu2+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Co2+, one Cu2+, and one P5+ atom. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to one Co2+, one Cu2+, and one P5+ atom. In the seventh O2- site, O2- is bonded in a linear geometry to two P5+ atoms.