Materials Data on CuNi3(CO3)8 by Materials Project
NiCu(CO2)8(NiO4)2 crystallizes in the triclinic P-1 space group. The structure is two-dimensional and consists of two NiO4 clusters and one NiCu(CO2)8 sheet oriented in the (0, 1, 0) direction. In each NiO4 cluster, Ni is bonded in a square co-planar geometry to four equivalent O atoms. All Ni–O bond lengths are 1.73 Å. O is bonded in a single-bond geometry to one Ni atom. In the NiCu(CO2)8 sheet, Ni is bonded in an octahedral geometry to six O atoms. There are a spread of Ni–O bond distances ranging from 2.11–2.33 Å. Cu is bonded in an octahedral geometry to six O atoms. There are a spread of Cu–O bond distances ranging from 2.13–2.37 Å. There are four inequivalent C sites. In the first C site, C is bonded in a linear geometry to two O atoms. There is one shorter (1.17 Å) and one longer (1.18 Å) C–O bond length. In the second C site, C is bonded in a linear geometry to two O atoms. There is one shorter (1.17 Å) and one longer (1.18 Å) C–O bond length. In the third C site, C is bonded in a linear geometry to two O atoms. There is one shorter (1.17 Å) and one longer (1.18 Å) C–O bond length. In the fourth C site, C is bonded in a linear geometry to two O atoms. There is one shorter (1.17 Å) and one longer (1.18 Å) C–O bond length. There are eight inequivalent O sites. In the first O site, O is bonded in a bent 150 degrees geometry to one Ni and one C atom. In the second O site, O is bonded in a bent 150 degrees geometry to one Cu and one C atom. In the third O site, O is bonded in a bent 150 degrees geometry to one Ni and one C atom. In the fourth O site, O is bonded in a bent 150 degrees geometry to one Cu and one C atom. In the fifth O site, O is bonded in a single-bond geometry to one C atom. In the sixth O site, O is bonded in a single-bond geometry to one C atom. In the seventh O site, O is bonded in a bent 150 degrees geometry to one Cu and one C atom. In the eighth O site, O is bonded in a bent 150 degrees geometry to one Ni and one C atom.