Co3P crystallizes in the tetragonal I-4 space group. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 3-coordinate geometry to three equivalent P(1) atoms. In the second Co site, Co(3) is bonded in a 2-coordinate geometry to two equivalent P(1) atoms. In the third Co site, Co(2) is bonded in a 4-coordinate geometry to four equivalent P(1) atoms. P(1) is bonded in a 9-coordinate geometry to two equivalent Co(3), three equivalent Co(1), and four equivalent Co(2) atoms.
Co3P crystallizes in the tetragonal I-4 space group. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 3-coordinate geometry to three equivalent P(1) atoms. There are a spread of Co(1)-P(1) bond distances ranging from 2.21-2.34 Å. In the second Co site, Co(3) is bonded in a 2-coordinate geometry to two equivalent P(1) atoms. There is one shorter (2.23 Å) and one longer (2.36 Å) Co(3)-P(1) bond length. In the third Co site, Co(2) is bonded in a 4-coordinate geometry to four equivalent P(1) atoms. There are a spread of Co(2)-P(1) bond distances ranging from 2.24-2.32 Å. P(1) is bonded in a 9-coordinate geometry to two equivalent Co(3), three equivalent Co(1), and four equivalent Co(2) atoms.