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Materials Data on NdCuSO by Materials Project

(NdO)CuS is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one CuS sheet oriented in the (0, 0, 1) direction and one NdO sheet oriented in the (0, 0, 1) direction. In the CuS sheet, Cu1+ is bonded to four equivalent S2- atoms to form a mixture of edge and corner-sharing CuS4 tetrahedra. All Cu–S bond lengths are 2.42 Å. S2- is bonded in a 4-coordinate geometry to four equivalent Cu1+ atoms. In the NdO sheet, Nd3+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. All Nd–O bond lengths are 2.32 Å. O2- is bonded to four equivalent Nd3+ atoms to form a mixture of edge and corner-sharing ONd4 tetrahedra.

36 MATERIALS SCIENCE↗

Materials Data on Nd2CuS2O by Materials Project

Nd2CuS2O crystallizes in the tetragonal P4/mmm space group. The structure is one-dimensional and consists of one Nd2CuS2O ribbon oriented in the (0, 0, 1) direction. Nd+2.50+ is bonded in a linear geometry to one S2- and one O2- atom. The Nd–S bond length is 2.70 Å. The Nd–O bond length is 2.14 Å. Cu1+ is bonded in a linear geometry to two equivalent S2- atoms. Both Cu–S bond lengths are 2.08 Å. S2- is bonded in a linear geometry to one Nd+2.50+ and one Cu1+ atom. O2- is bonded in a linear geometry to two equivalent Nd+2.50+ atoms.

36 MATERIALS SCIENCE↗