Materials Data on LaCeCu12 by Materials Project

CeLaCu12 crystallizes in the orthorhombic Pmc2_1 space group. The structure is three-dimensional. Ce is bonded in a 7-coordinate geometry to nineteen Cu atoms. There are a spread of Ce–Cu bond distances ranging from 2.90–3.37 Å. La is bonded in a 7-coordinate geometry to nineteen Cu atoms. There are a spread of La–Cu bond distances ranging from 2.91–3.38 Å. There are ten inequivalent Cu sites. In the first Cu site, Cu is bonded in a 2-coordinate geometry to two equivalent Ce, two equivalent La, and ten Cu atoms. There are a spread of Cu–Cu bond distances ranging from 2.52–3.10 Å. In the second Cu site, Cu is bonded in a 2-coordinate geometry to two equivalent Ce, two equivalent La, and ten Cu atoms. There are a spread of Cu–Cu bond distances ranging from 2.51–3.09 Å. In the third Cu site, Cu is bonded to one Ce, two equivalent La, and nine Cu atoms to form CuLa2CeCu9 cuboctahedra that share corners with ten CuLaCe2Cu9 cuboctahedra, edges with four CuLa2CeCu9 cuboctahedra, and faces with ten CuLa2CeCu9 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.46–2.61 Å. In the fourth Cu site, Cu is bonded to two equivalent Ce, one La, and nine Cu atoms to form CuLaCe2Cu9 cuboctahedra that share corners with ten CuLa2CeCu9 cuboctahedra, edges with four CuLaCe2Cu9 cuboctahedra, and faces with ten CuLaCe2Cu9 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.46–2.59 Å. In the fifth Cu site, Cu is bonded in a 3-coordinate geometry to one Ce, two equivalent La, and eight Cu atoms. There are two shorter (2.50 Å) and one longer (2.87 Å) Cu–Cu bond lengths. In the sixth Cu site, Cu is bonded in a 3-coordinate geometry to two equivalent Ce, one La, and eight Cu atoms. There are two shorter (2.49 Å) and one longer (2.84 Å) Cu–Cu bond lengths. In the seventh Cu site, Cu is bonded in a 12-coordinate geometry to one Ce, two equivalent La, and nine Cu atoms. There are a spread of Cu–Cu bond distances ranging from 2.44–3.03 Å. In the eighth Cu site, Cu is bonded in a 12-coordinate geometry to two equivalent Ce, one La, and nine Cu atoms. There are two shorter (2.45 Å) and two longer (2.57 Å) Cu–Cu bond lengths. In the ninth Cu site, Cu is bonded to two equivalent Ce, one La, and nine Cu atoms to form CuLaCe2Cu9 cuboctahedra that share corners with eleven CuLa2CeCu9 cuboctahedra, edges with five CuLa2CeCu9 cuboctahedra, and faces with nine CuLaCe2Cu9 cuboctahedra. There are one shorter (2.49 Å) and one longer (2.60 Å) Cu–Cu bond lengths. In the tenth Cu site, Cu is bonded to one Ce, two equivalent La, and nine Cu atoms to form CuLa2CeCu9 cuboctahedra that share corners with eleven CuLaCe2Cu9 cuboctahedra, edges with five CuLaCe2Cu9 cuboctahedra, and faces with nine CuLa2CeCu9 cuboctahedra. There are one shorter (2.51 Å) and one longer (2.59 Å) Cu–Cu bond lengths.