OsAsP crystallizes in the monoclinic P2/m space group. There are two inequivalent Os sites. In the first Os site, Os(1) is bonded to two equivalent As(1) and four equivalent P(1) atoms to form OsAs2P4 octahedra that share corners with eight equivalent Os(2)As4P2 octahedra, corners with two equivalent As(1)AsOs3 tetrahedra, corners with four equivalent P(1)POs3 tetrahedra, and edges with two equivalent Os(1)As2P4 octahedra. The corner-sharing octahedral tilt angles range from 53-57°. In the second Os site, Os(2) is bonded to four equivalent As(1) and two equivalent P(1) atoms to form distorted OsAs4P2 octahedra that share corners with eight equivalent Os(1)As2P4 octahedra, corners with two equivalent P(1)POs3 tetrahedra, corners with four equivalent As(1)AsOs3 tetrahedra, and edges with two equivalent Os(2)As4P2 octahedra. The corner-sharing octahedral tilt angles range from 53-57°. As(1) is bonded to one Os(1), two equivalent Os(2), and one As(1) atom to form distorted AsAsOs3 tetrahedra that share  a cornercorner with one Os(1)As2P4 octahedra, corners with two equivalent Os(2)As4P2 octahedra, corners with five equivalent As(1)AsOs3 tetrahedra, corners with eight equivalent P(1)POs3 tetrahedra, and  an edgeedge with one As(1)AsOs3 tetrahedra. The corner-sharing octahedral tilt angles range from 71-73°. P(1) is bonded to one Os(2), two equivalent Os(1), and one P(1) atom to form PPOs3 tetrahedra that share  a cornercorner with one Os(2)As4P2 octahedra, corners with two equivalent Os(1)As2P4 octahedra, corners with five equivalent P(1)POs3 tetrahedra, corners with eight equivalent As(1)AsOs3 tetrahedra, and  an edgeedge with one P(1)POs3 tetrahedra. The corner-sharing octahedral tilt angles range from 68-71°.
OsAsP crystallizes in the monoclinic P2/m space group. There are two inequivalent Os sites. In the first Os site, Os(1) is bonded to two equivalent As(1) and four equivalent P(1) atoms to form OsAs2P4 octahedra that share corners with eight equivalent Os(2)As4P2 octahedra, corners with two equivalent As(1)AsOs3 tetrahedra, corners with four equivalent P(1)POs3 tetrahedra, and edges with two equivalent Os(1)As2P4 octahedra. The corner-sharing octahedral tilt angles range from 53-57°. Both Os(1)-As(1) bond lengths are 2.43 Å. All Os(1)-P(1) bond lengths are 2.43 Å. In the second Os site, Os(2) is bonded to four equivalent As(1) and two equivalent P(1) atoms to form distorted OsAs4P2 octahedra that share corners with eight equivalent Os(1)As2P4 octahedra, corners with two equivalent P(1)POs3 tetrahedra, corners with four equivalent As(1)AsOs3 tetrahedra, and edges with two equivalent Os(2)As4P2 octahedra. The corner-sharing octahedral tilt angles range from 53-57°. All Os(2)-As(1) bond lengths are 2.47 Å. Both Os(2)-P(1) bond lengths are 2.40 Å. As(1) is bonded to one Os(1), two equivalent Os(2), and one As(1) atom to form distorted AsAsOs3 tetrahedra that share  a cornercorner with one Os(1)As2P4 octahedra, corners with two equivalent Os(2)As4P2 octahedra, corners with five equivalent As(1)AsOs3 tetrahedra, corners with eight equivalent P(1)POs3 tetrahedra, and  an edgeedge with one As(1)AsOs3 tetrahedra. The corner-sharing octahedral tilt angles range from 71-73°. The As(1)-As(1) bond length is 2.42 Å. P(1) is bonded to one Os(2), two equivalent Os(1), and one P(1) atom to form PPOs3 tetrahedra that share  a cornercorner with one Os(2)As4P2 octahedra, corners with two equivalent Os(1)As2P4 octahedra, corners with five equivalent P(1)POs3 tetrahedra, corners with eight equivalent As(1)AsOs3 tetrahedra, and  an edgeedge with one P(1)POs3 tetrahedra. The corner-sharing octahedral tilt angles range from 68-71°. The P(1)-P(1) bond length is 2.39 Å.