U(Cr3P2)2 crystallizes in the hexagonal P-6m2 space group. U(1) is bonded to six equivalent Cr(1) and six equivalent P(2) atoms to form distorted UCr6P6 cuboctahedra that share edges with six equivalent Cr(1)U2P4 tetrahedra and faces with two equivalent U(1)Cr6P6 cuboctahedra. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to two equivalent U(1), two equivalent P(1), and two equivalent P(2) atoms to form distorted CrU2P4 tetrahedra that share corners with eight equivalent Cr(1)U2P4 tetrahedra, edges with two equivalent U(1)Cr6P6 cuboctahedra, edges with four equivalent Cr(1)U2P4 tetrahedra, and faces with two equivalent Cr(1)U2P4 tetrahedra. In the second Cr site, Cr(2) is bonded in a 5-coordinate geometry to one P(1) and four equivalent P(2) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to three equivalent Cr(2) and six equivalent Cr(1) atoms. In the second P site, P(2) is bonded in a 8-coordinate geometry to two equivalent U(1), two equivalent Cr(1), and four equivalent Cr(2) atoms.
U(Cr3P2)2 crystallizes in the hexagonal P-6m2 space group. U(1) is bonded to six equivalent Cr(1) and six equivalent P(2) atoms to form distorted UCr6P6 cuboctahedra that share edges with six equivalent Cr(1)U2P4 tetrahedra and faces with two equivalent U(1)Cr6P6 cuboctahedra. All U(1)-Cr(1) bond lengths are 3.01 Å. All U(1)-P(2) bond lengths are 2.85 Å. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to two equivalent U(1), two equivalent P(1), and two equivalent P(2) atoms to form distorted CrU2P4 tetrahedra that share corners with eight equivalent Cr(1)U2P4 tetrahedra, edges with two equivalent U(1)Cr6P6 cuboctahedra, edges with four equivalent Cr(1)U2P4 tetrahedra, and faces with two equivalent Cr(1)U2P4 tetrahedra. Both Cr(1)-P(1) bond lengths are 2.35 Å. Both Cr(1)-P(2) bond lengths are 2.37 Å. In the second Cr site, Cr(2) is bonded in a 5-coordinate geometry to one P(1) and four equivalent P(2) atoms. The Cr(2)-P(1) bond length is 2.46 Å. All Cr(2)-P(2) bond lengths are 2.42 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to three equivalent Cr(2) and six equivalent Cr(1) atoms. In the second P site, P(2) is bonded in a 8-coordinate geometry to two equivalent U(1), two equivalent Cr(1), and four equivalent Cr(2) atoms.