Eu(CdP)2 crystallizes in the trigonal P-3m1 space group. Eu(1) is bonded to six equivalent P(1) atoms to form EuP6 octahedra that share corners with twelve equivalent Cd(1)P4 tetrahedra, edges with six equivalent Eu(1)P6 octahedra, and edges with six equivalent Cd(1)P4 tetrahedra. Cd(1) is bonded to four equivalent P(1) atoms to form CdP4 tetrahedra that share corners with six equivalent Eu(1)P6 octahedra, corners with six equivalent Cd(1)P4 tetrahedra, edges with three equivalent Eu(1)P6 octahedra, and edges with three equivalent Cd(1)P4 tetrahedra. The corner-sharing octahedral tilt angles range from 17-55°. P(1) is bonded to three equivalent Eu(1) and four equivalent Cd(1) atoms to form a mixture of distorted corner and edge-sharing PEu3Cd4 pentagonal bipyramids.
Eu(CdP)2 crystallizes in the trigonal P-3m1 space group. Eu(1) is bonded to six equivalent P(1) atoms to form EuP6 octahedra that share corners with twelve equivalent Cd(1)P4 tetrahedra, edges with six equivalent Eu(1)P6 octahedra, and edges with six equivalent Cd(1)P4 tetrahedra. All Eu(1)-P(1) bond lengths are 3.06 Å. Cd(1) is bonded to four equivalent P(1) atoms to form CdP4 tetrahedra that share corners with six equivalent Eu(1)P6 octahedra, corners with six equivalent Cd(1)P4 tetrahedra, edges with three equivalent Eu(1)P6 octahedra, and edges with three equivalent Cd(1)P4 tetrahedra. The corner-sharing octahedral tilt angles range from 17-55°. There are three shorter (2.64 Å) and one longer (2.79 Å) Cd(1)-P(1) bond length. P(1) is bonded to three equivalent Eu(1) and four equivalent Cd(1) atoms to form a mixture of distorted corner and edge-sharing PEu3Cd4 pentagonal bipyramids.