Co5B2P crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 4-coordinate geometry to four equivalent B(1) and two equivalent P(1) atoms. In the second Co site, Co(2) is bonded to three equivalent B(1) and two equivalent P(1) atoms to form a mixture of distorted corner, face, and edge-sharing CoB3P2 trigonal bipyramids. B(1) is bonded in a 9-coordinate geometry to two equivalent Co(1), six equivalent Co(2), and one B(1) atom. P(1) is bonded in a 10-coordinate geometry to two equivalent Co(1) and eight equivalent Co(2) atoms.
Co5B2P crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 4-coordinate geometry to four equivalent B(1) and two equivalent P(1) atoms. All Co(1)-B(1) bond lengths are 2.13 Å. Both Co(1)-P(1) bond lengths are 2.56 Å. In the second Co site, Co(2) is bonded to three equivalent B(1) and two equivalent P(1) atoms to form a mixture of distorted corner, face, and edge-sharing CoB3P2 trigonal bipyramids. There is one shorter (2.13 Å) and two longer (2.14 Å) Co(2)-B(1) bond lengths. Both Co(2)-P(1) bond lengths are 2.29 Å. B(1) is bonded in a 9-coordinate geometry to two equivalent Co(1), six equivalent Co(2), and one B(1) atom. The B(1)-B(1) bond length is 1.85 Å. P(1) is bonded in a 10-coordinate geometry to two equivalent Co(1) and eight equivalent Co(2) atoms.