Materials Data on CeCuTeO by Materials Project

Abstract

CeCuOTe is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Ce3+ is bonded in a 4-coordinate geometry to four equivalent Te2- and four equivalent O2- atoms. All Ce–Te bond lengths are 3.41 Å. All Ce–O bond lengths are 2.37 Å. Cu1+ is bonded to four equivalent Te2- atoms to form CuTe4 tetrahedra that share corners with four equivalent CuTe4 tetrahedra, corners with twelve equivalent OCe4Te4 tetrahedra, edges with two equivalent OCe4Te4 tetrahedra, and edges with four equivalent CuTe4 tetrahedra. All Cu–Te bond lengths are 2.67 Å. Te2- is bonded in a 12-coordinate geometry to four equivalent Ce3+, four equivalent Cu1+, and four equivalent O2- atoms. All Te–O bond lengths are 3.64 Å. O2- is bonded to four equivalent Ce3+ and four equivalent Te2- atoms to form OCe4Te4 tetrahedra that share corners with twelve equivalent CuTe4 tetrahedra, edges with two equivalent CuTe4 tetrahedra, edges with four equivalent OCe4Te4 tetrahedra, and faces with four equivalent OCe4Te4 tetrahedra.