Materials Data on CeZr3Mn8 by Materials Project

Abstract

CeZr3Mn8 is Hexagonal Laves-derived structured and crystallizes in the trigonal P3m1 space group. The structure is three-dimensional. Ce is bonded in a 12-coordinate geometry to four Zr and twelve Mn atoms. There are one shorter (3.08 Å) and three longer (3.09 Å) Ce–Zr bond lengths. There are a spread of Ce–Mn bond distances ranging from 2.93–3.02 Å. There are three inequivalent Zr sites. In the first Zr site, Zr is bonded in a 12-coordinate geometry to three equivalent Ce, one Zr, and twelve Mn atoms. The Zr–Zr bond length is 3.03 Å. There are six shorter (2.98 Å) and six longer (2.99 Å) Zr–Mn bond lengths. In the second Zr site, Zr is bonded in a 12-coordinate geometry to four Zr and twelve Mn atoms. All Zr–Zr bond lengths are 3.11 Å. There are a spread of Zr–Mn bond distances ranging from 2.87–2.98 Å. In the third Zr site, Zr is bonded in a 9-coordinate geometry to one Ce, three equivalent Zr, and twelve Mn atoms. There are a spread of Zr–Mn bond distances ranging from 2.87–2.99 Å. There are four inequivalent Mn sites. In the first Mn site, Mn is bonded to three equivalent Ce, three equivalent Zr, and six Mn atoms to form MnCe3Zr3Mn6 cuboctahedra that share corners with twelve MnCe2Zr4Mn6 cuboctahedra, edges with six equivalent MnCe3Zr3Mn6 cuboctahedra, and faces with twenty MnZr6Mn6 cuboctahedra. There are three shorter (2.54 Å) and three longer (2.55 Å) Mn–Mn bond lengths. In the second Mn site, Mn is bonded to six Zr and six Mn atoms to form MnZr6Mn6 cuboctahedra that share corners with twelve MnCe2Zr4Mn6 cuboctahedra, edges with six equivalent MnZr6Mn6 cuboctahedra, and faces with twenty MnCe3Zr3Mn6 cuboctahedra. There are three shorter (2.42 Å) and three longer (2.47 Å) Mn–Mn bond lengths. In the third Mn site, Mn is bonded to two equivalent Ce, four Zr, and six Mn atoms to form MnCe2Zr4Mn6 cuboctahedra that share corners with eighteen MnCe3Zr3Mn6 cuboctahedra, edges with six MnCeZr5Mn6 cuboctahedra, and faces with eighteen MnCe3Zr3Mn6 cuboctahedra. There are two shorter (2.54 Å) and two longer (2.55 Å) Mn–Mn bond lengths. In the fourth Mn site, Mn is bonded to one Ce, five Zr, and six Mn atoms to form MnCeZr5Mn6 cuboctahedra that share corners with eighteen MnCe3Zr3Mn6 cuboctahedra, edges with six MnCeZr5Mn6 cuboctahedra, and faces with eighteen MnCe3Zr3Mn6 cuboctahedra. There are two shorter (2.54 Å) and two longer (2.55 Å) Mn–Mn bond lengths.