SrCe3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Sr(1) is bonded to twelve Ce(1,1,1) atoms to form SrCe12 cuboctahedra that share corners with six equivalent Sr(1)Ce12 cuboctahedra; corners with twelve Ce(1,1,1)Sr4Ce8 cuboctahedra; edges with eighteen Ce(1,1,1)Sr4Ce8 cuboctahedra; faces with eight equivalent Sr(1)Ce12 cuboctahedra; and faces with twelve Ce(1,1,1)Sr4Ce8 cuboctahedra. There are three inequivalent Ce sites. In the first Ce site, Ce(1) is bonded to four equivalent Sr(1) and eight Ce(1,1) atoms to form distorted CeSr4Ce8 cuboctahedra that share corners with four equivalent Sr(1)Ce12 cuboctahedra; corners with fourteen Ce(1,1)Sr4Ce8 cuboctahedra; edges with six equivalent Sr(1)Ce12 cuboctahedra; edges with twelve Ce(1,1)Sr4Ce8 cuboctahedra; faces with four equivalent Sr(1)Ce12 cuboctahedra; and faces with sixteen Ce(1,1,1)Sr4Ce8 cuboctahedra. In the second Ce site, Ce(1) is bonded to four equivalent Sr(1) and eight Ce(1,1) atoms to form distorted CeSr4Ce8 cuboctahedra that share corners with four equivalent Sr(1)Ce12 cuboctahedra; corners with fourteen Ce(1,1)Sr4Ce8 cuboctahedra; edges with six equivalent Sr(1)Ce12 cuboctahedra; edges with twelve Ce(1,1)Sr4Ce8 cuboctahedra; faces with four equivalent Sr(1)Ce12 cuboctahedra; and faces with sixteen Ce(1,1,1)Sr4Ce8 cuboctahedra. In the third Ce site, Ce(1) is bonded to four equivalent Sr(1) and eight Ce(1,1) atoms to form distorted CeSr4Ce8 cuboctahedra that share corners with four equivalent Sr(1)Ce12 cuboctahedra; corners with fourteen Ce(1,1,1)Sr4Ce8 cuboctahedra; edges with six equivalent Sr(1)Ce12 cuboctahedra; edges with twelve Ce(1,1)Sr4Ce8 cuboctahedra; faces with four equivalent Sr(1)Ce12 cuboctahedra; and faces with sixteen Ce(1,1,1)Sr4Ce8 cuboctahedra.
SrCe3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Sr(1) is bonded to twelve Ce(1,1,1) atoms to form SrCe12 cuboctahedra that share corners with six equivalent Sr(1)Ce12 cuboctahedra; corners with twelve Ce(1,1,1)Sr4Ce8 cuboctahedra; edges with eighteen Ce(1,1,1)Sr4Ce8 cuboctahedra; faces with eight equivalent Sr(1)Ce12 cuboctahedra; and faces with twelve Ce(1,1,1)Sr4Ce8 cuboctahedra. All Sr(1)-Ce(1,1,1) bond lengths are 3.69 Å. There are three inequivalent Ce sites. In the first Ce site, Ce(1) is bonded to four equivalent Sr(1) and eight Ce(1,1) atoms to form distorted CeSr4Ce8 cuboctahedra that share corners with four equivalent Sr(1)Ce12 cuboctahedra; corners with fourteen Ce(1,1)Sr4Ce8 cuboctahedra; edges with six equivalent Sr(1)Ce12 cuboctahedra; edges with twelve Ce(1,1)Sr4Ce8 cuboctahedra; faces with four equivalent Sr(1)Ce12 cuboctahedra; and faces with sixteen Ce(1,1,1)Sr4Ce8 cuboctahedra. There are a spread of Ce(1)-Ce(1,1) bond distances ranging from 3.38-4.00 Å. In the second Ce site, Ce(1) is bonded to four equivalent Sr(1) and eight Ce(1,1) atoms to form distorted CeSr4Ce8 cuboctahedra that share corners with four equivalent Sr(1)Ce12 cuboctahedra; corners with fourteen Ce(1,1)Sr4Ce8 cuboctahedra; edges with six equivalent Sr(1)Ce12 cuboctahedra; edges with twelve Ce(1,1)Sr4Ce8 cuboctahedra; faces with four equivalent Sr(1)Ce12 cuboctahedra; and faces with sixteen Ce(1,1,1)Sr4Ce8 cuboctahedra. Both Ce(1)-Ce(1) bond lengths are 3.48 Å. In the third Ce site, Ce(1) is bonded to four equivalent Sr(1) and eight Ce(1,1) atoms to form distorted CeSr4Ce8 cuboctahedra that share corners with four equivalent Sr(1)Ce12 cuboctahedra; corners with fourteen Ce(1,1,1)Sr4Ce8 cuboctahedra; edges with six equivalent Sr(1)Ce12 cuboctahedra; edges with twelve Ce(1,1)Sr4Ce8 cuboctahedra; faces with four equivalent Sr(1)Ce12 cuboctahedra; and faces with sixteen Ce(1,1,1)Sr4Ce8 cuboctahedra. There are a spread of Ce(1)-Ce(1) bond distances ranging from 3.38-4.00 Å.