Co6BP crystallizes in the monoclinic C2 space group. There are six inequivalent Co sites. In the first Co site, Co(1) is bonded in a 2-coordinate geometry to one B(1) and one P(1) atom. In the second Co site, Co(2) is bonded in a 2-coordinate geometry to one B(1) and one P(1) atom. In the third Co site, Co(3) is bonded in a 4-coordinate geometry to two equivalent B(1) and two equivalent P(1) atoms. In the fourth Co site, Co(4) is bonded to two equivalent B(1) and two equivalent P(1) atoms to form a mixture of distorted corner and edge-sharing CoB2P2 tetrahedra. In the fifth Co site, Co(5) is bonded in a distorted water-like geometry to one B(1) and one P(1) atom. In the sixth Co site, Co(6) is bonded in a 3-coordinate geometry to one B(1) and two equivalent P(1) atoms. B(1) is bonded in a 8-coordinate geometry to one Co(1), one Co(2), one Co(5), one Co(6), two equivalent Co(3), and two equivalent Co(4) atoms. P(1) is bonded in a 9-coordinate geometry to one Co(1), one Co(2), one Co(5), two equivalent Co(3), two equivalent Co(4), and two equivalent Co(6) atoms.
Co6BP crystallizes in the monoclinic C2 space group. There are six inequivalent Co sites. In the first Co site, Co(1) is bonded in a 2-coordinate geometry to one B(1) and one P(1) atom. The Co(1)-B(1) bond length is 2.11 Å. The Co(1)-P(1) bond length is 2.32 Å. In the second Co site, Co(2) is bonded in a 2-coordinate geometry to one B(1) and one P(1) atom. The Co(2)-B(1) bond length is 2.09 Å. The Co(2)-P(1) bond length is 2.27 Å. In the third Co site, Co(3) is bonded in a 4-coordinate geometry to two equivalent B(1) and two equivalent P(1) atoms. There is one shorter (2.15 Å) and one longer (2.23 Å) Co(3)-B(1) bond length. There is one shorter (2.27 Å) and one longer (2.32 Å) Co(3)-P(1) bond length. In the fourth Co site, Co(4) is bonded to two equivalent B(1) and two equivalent P(1) atoms to form a mixture of distorted corner and edge-sharing CoB2P2 tetrahedra. There is one shorter (2.13 Å) and one longer (2.14 Å) Co(4)-B(1) bond length. There is one shorter (2.20 Å) and one longer (2.29 Å) Co(4)-P(1) bond length. In the fifth Co site, Co(5) is bonded in a distorted water-like geometry to one B(1) and one P(1) atom. The Co(5)-B(1) bond length is 2.07 Å. The Co(5)-P(1) bond length is 2.21 Å. In the sixth Co site, Co(6) is bonded in a 3-coordinate geometry to one B(1) and two equivalent P(1) atoms. The Co(6)-B(1) bond length is 2.18 Å. There is one shorter (2.21 Å) and one longer (2.27 Å) Co(6)-P(1) bond length. B(1) is bonded in a 8-coordinate geometry to one Co(1), one Co(2), one Co(5), one Co(6), two equivalent Co(3), and two equivalent Co(4) atoms. P(1) is bonded in a 9-coordinate geometry to one Co(1), one Co(2), one Co(5), two equivalent Co(3), two equivalent Co(4), and two equivalent Co(6) atoms.