ScCo5P3 crystallizes in the orthorhombic Pnma space group. Sc(1) is bonded in a 17-coordinate geometry to one Co(1), one Co(5), three equivalent Co(2), three equivalent Co(3), three equivalent Co(4), two equivalent P(1), two equivalent P(2), and two equivalent P(3) atoms. There are five inequivalent Co sites. In the first Co site, Co(1) is bonded in a 5-coordinate geometry to one Sc(1), one P(3), two equivalent P(1), and two equivalent P(2) atoms. In the second Co site, Co(2) is bonded in a 4-coordinate geometry to three equivalent Sc(1), one P(2), and three equivalent P(3) atoms. In the third Co site, Co(3) is bonded to three equivalent Sc(1), one P(1), one P(2), and two equivalent P(3) atoms to form distorted CoSc3P4 tetrahedra that share  a cornercorner with one Co(5)ScP4 tetrahedra, corners with three equivalent Co(4)Sc3P4 tetrahedra, corners with four equivalent Co(3)Sc3P4 tetrahedra, edges with two equivalent Co(3)Sc3P4 tetrahedra, edges with three equivalent Co(5)ScP4 tetrahedra, and faces with three equivalent Co(4)Sc3P4 tetrahedra. In the fourth Co site, Co(4) is bonded to three equivalent Sc(1), one P(1), one P(3), and two equivalent P(2) atoms to form distorted CoSc3P4 tetrahedra that share corners with two equivalent Co(5)ScP4 tetrahedra, corners with three equivalent Co(3)Sc3P4 tetrahedra, corners with four equivalent Co(4)Sc3P4 tetrahedra, edges with two equivalent Co(4)Sc3P4 tetrahedra, faces with two equivalent Co(5)ScP4 tetrahedra, and faces with three equivalent Co(3)Sc3P4 tetrahedra. In the fifth Co site, Co(5) is bonded to one Sc(1), one P(2), and three equivalent P(1) atoms to form distorted CoScP4 tetrahedra that share  a cornercorner with one Co(3)Sc3P4 tetrahedra, corners with two equivalent Co(4)Sc3P4 tetrahedra, corners with two equivalent Co(5)ScP4 tetrahedra, edges with two equivalent Co(5)ScP4 tetrahedra, edges with three equivalent Co(3)Sc3P4 tetrahedra, and faces with two equivalent Co(4)Sc3P4 tetrahedra. There are three inequivalent P sites. In the first P site, P(3) is bonded in a 9-coordinate geometry to two equivalent Sc(1), one Co(1), one Co(4), two equivalent Co(3), and three equivalent Co(2) atoms. In the second P site, P(1) is bonded in a 9-coordinate geometry to two equivalent Sc(1), one Co(3), one Co(4), two equivalent Co(1), and three equivalent Co(5) atoms. In the third P site, P(2) is bonded in a 9-coordinate geometry to two equivalent Sc(1), one Co(2), one Co(3), one Co(5), two equivalent Co(1), and two equivalent Co(4) atoms.
ScCo5P3 crystallizes in the orthorhombic Pnma space group. Sc(1) is bonded in a 17-coordinate geometry to one Co(1), one Co(5), three equivalent Co(2), three equivalent Co(3), three equivalent Co(4), two equivalent P(1), two equivalent P(2), and two equivalent P(3) atoms. The Sc(1)-Co(1) bond length is 3.20 Å. The Sc(1)-Co(5) bond length is 2.90 Å. There are two shorter (2.83 Å) and one longer (3.09 Å) Sc(1)-Co(2) bond length. There are two shorter (3.03 Å) and one longer (3.10 Å) Sc(1)-Co(3) bond length. There are two shorter (2.93 Å) and one longer (3.06 Å) Sc(1)-Co(4) bond length. Both Sc(1)-P(1) bond lengths are 2.77 Å. Both Sc(1)-P(2) bond lengths are 2.72 Å. Both Sc(1)-P(3) bond lengths are 2.78 Å. There are five inequivalent Co sites. In the first Co site, Co(1) is bonded in a 5-coordinate geometry to one Sc(1), one P(3), two equivalent P(1), and two equivalent P(2) atoms. The Co(1)-P(3) bond length is 2.21 Å. Both Co(1)-P(1) bond lengths are 2.57 Å. Both Co(1)-P(2) bond lengths are 2.42 Å. In the second Co site, Co(2) is bonded in a 4-coordinate geometry to three equivalent Sc(1), one P(2), and three equivalent P(3) atoms. The Co(2)-P(2) bond length is 2.23 Å. There is one shorter (2.23 Å) and two longer (2.31 Å) Co(2)-P(3) bond lengths. In the third Co site, Co(3) is bonded to three equivalent Sc(1), one P(1), one P(2), and two equivalent P(3) atoms to form distorted CoSc3P4 tetrahedra that share  a cornercorner with one Co(5)ScP4 tetrahedra, corners with three equivalent Co(4)Sc3P4 tetrahedra, corners with four equivalent Co(3)Sc3P4 tetrahedra, edges with two equivalent Co(3)Sc3P4 tetrahedra, edges with three equivalent Co(5)ScP4 tetrahedra, and faces with three equivalent Co(4)Sc3P4 tetrahedra. The Co(3)-P(1) bond length is 2.13 Å. The Co(3)-P(2) bond length is 2.24 Å. Both Co(3)-P(3) bond lengths are 2.31 Å. In the fourth Co site, Co(4) is bonded to three equivalent Sc(1), one P(1), one P(3), and two equivalent P(2) atoms to form distorted CoSc3P4 tetrahedra that share corners with two equivalent Co(5)ScP4 tetrahedra, corners with three equivalent Co(3)Sc3P4 tetrahedra, corners with four equivalent Co(4)Sc3P4 tetrahedra, edges with two equivalent Co(4)Sc3P4 tetrahedra, faces with two equivalent Co(5)ScP4 tetrahedra, and faces with three equivalent Co(3)Sc3P4 tetrahedra. The Co(4)-P(1) bond length is 2.25 Å. The Co(4)-P(3) bond length is 2.22 Å. Both Co(4)-P(2) bond lengths are 2.29 Å. In the fifth Co site, Co(5) is bonded to one Sc(1), one P(2), and three equivalent P(1) atoms to form distorted CoScP4 tetrahedra that share  a cornercorner with one Co(3)Sc3P4 tetrahedra, corners with two equivalent Co(4)Sc3P4 tetrahedra, corners with two equivalent Co(5)ScP4 tetrahedra, edges with two equivalent Co(5)ScP4 tetrahedra, edges with three equivalent Co(3)Sc3P4 tetrahedra, and faces with two equivalent Co(4)Sc3P4 tetrahedra. The Co(5)-P(2) bond length is 2.16 Å. There is one shorter (2.18 Å) and two longer (2.20 Å) Co(5)-P(1) bond lengths. There are three inequivalent P sites. In the first P site, P(3) is bonded in a 9-coordinate geometry to two equivalent Sc(1), one Co(1), one Co(4), two equivalent Co(3), and three equivalent Co(2) atoms. In the second P site, P(1) is bonded in a 9-coordinate geometry to two equivalent Sc(1), one Co(3), one Co(4), two equivalent Co(1), and three equivalent Co(5) atoms. In the third P site, P(2) is bonded in a 9-coordinate geometry to two equivalent Sc(1), one Co(2), one Co(3), one Co(5), two equivalent Co(1), and two equivalent Co(4) atoms.