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Materials Data on K2CuPb(NO2)6 by Materials Project

K2PbCu(NO2)6 crystallizes in the cubic Fm-3 space group. The structure is three-dimensional and consists of four copper molecules and one K2Pb(NO2)6 framework. In the K2Pb(NO2)6 framework, K1+ is bonded to twelve equivalent O2- atoms to form KO12 cuboctahedra that share edges with six equivalent KO12 cuboctahedra and faces with four equivalent PbO12 cuboctahedra. All K–O bond lengths are 3.17 Å. Pb2+ is bonded to twelve equivalent O2- atoms to form PbO12 cuboctahedra that share faces with eight equivalent KO12 cuboctahedra. All Pb–O bond lengths are 2.83 Å. N3+ is bonded in a bent 120 degrees geometry to two equivalent O2- atoms. Both N–O bond lengths are 1.26 Å. O2- is bonded in a single-bond geometry to two equivalent K1+, one Pb2+, and one N3+ atom.

36 MATERIALS SCIENCE↗

Materials Data on K2CuPb(NO2)6 by Materials Project

K2PbCu(NO2)6 crystallizes in the cubic F23 space group. The structure is three-dimensional and consists of four copper molecules and one K2Pb(NO2)6 framework. In the K2Pb(NO2)6 framework, there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded to twelve equivalent O2- atoms to form edge-sharing KO12 cuboctahedra. All K–O bond lengths are 2.92 Å. In the second K1+ site, K1+ is bonded to twelve equivalent O2- atoms to form edge-sharing KO12 cuboctahedra. All K–O bond lengths are 3.21 Å. Pb2+ is bonded in a distorted q6 geometry to twelve equivalent O2- atoms. All Pb–O bond lengths are 2.72 Å. N3+ is bonded in a bent 120 degrees geometry to two equivalent O2- atoms. Both N–O bond lengths are 1.26 Å. O2- is bonded in a distorted single-bond geometry to two K1+, one Pb2+, and one N3+ atom.

36 MATERIALS SCIENCE↗