Materials Data on LaNdCuO4 by Materials Project

Abstract

LaNdCuO4 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Nd3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Nd–O bond distances ranging from 2.31–2.75 Å. La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.30–3.03 Å. There are two inequivalent Cu2+ sites. In the first Cu2+ site, Cu2+ is bonded to six O2- atoms to form corner-sharing CuO6 octahedra. The corner-sharing octahedral tilt angles are 7°. There are four shorter (1.90 Å) and two longer (2.43 Å) Cu–O bond lengths. In the second Cu2+ site, Cu2+ is bonded to six O2- atoms to form corner-sharing CuO6 octahedra. The corner-sharing octahedral tilt angles are 7°. There are four shorter (1.91 Å) and two longer (2.41 Å) Cu–O bond lengths. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Nd3+, two equivalent La3+, and two Cu2+ atoms to form a mixture of distorted corner, edge, and face-sharing OLa2Nd2Cu2 octahedra. The corner-sharing octahedral tilt angles are 0°. In the second O2- site, O2- is bonded in a 6-coordinate geometry to three equivalent Nd3+, two equivalent La3+, and one Cu2+ atom. In the third O2- site, O2- is bonded in a 5-coordinate geometry to one Nd3+, three equivalent La3+, and one Cu2+ atom.