MgPt5P crystallizes in the tetragonal P4/mmm space group. Mg(1) is bonded to four equivalent Pt(1) and eight equivalent Pt(2) atoms to form a mixture of face and corner-sharing MgPt12 cuboctahedra. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a distorted square co-planar geometry to four equivalent Mg(1) atoms. In the second Pt site, Pt(2) is bonded to two equivalent Mg(1) and two equivalent P(1) atoms to form a mixture of distorted corner and edge-sharing PtMg2P2 tetrahedra. P(1) is bonded in a body-centered cubic geometry to eight equivalent Pt(2) atoms.
MgPt5P crystallizes in the tetragonal P4/mmm space group. Mg(1) is bonded to four equivalent Pt(1) and eight equivalent Pt(2) atoms to form a mixture of face and corner-sharing MgPt12 cuboctahedra. All Mg(1)-Pt(1) bond lengths are 2.77 Å. All Mg(1)-Pt(2) bond lengths are 2.82 Å. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a distorted square co-planar geometry to four equivalent Mg(1) atoms. In the second Pt site, Pt(2) is bonded to two equivalent Mg(1) and two equivalent P(1) atoms to form a mixture of distorted corner and edge-sharing PtMg2P2 tetrahedra. Both Pt(2)-P(1) bond lengths are 2.43 Å. P(1) is bonded in a body-centered cubic geometry to eight equivalent Pt(2) atoms.