Pt5GaP crystallizes in the tetragonal P4/mmm space group. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 4-coordinate geometry to two equivalent Pt(2), two equivalent Ga(1), and two equivalent P(1) atoms. In the second Pt site, Pt(2) is bonded to eight equivalent Pt(1) and four equivalent Ga(1) atoms to form distorted PtGa4Pt8 cuboctahedra that share corners with four equivalent Pt(2)Ga4Pt8 cuboctahedra, faces with four equivalent Pt(2)Ga4Pt8 cuboctahedra, and faces with four equivalent Ga(1)Pt12 cuboctahedra. Ga(1) is bonded to four equivalent Pt(2) and eight equivalent Pt(1) atoms to form GaPt12 cuboctahedra that share corners with four equivalent Ga(1)Pt12 cuboctahedra, faces with four equivalent Pt(2)Ga4Pt8 cuboctahedra, and faces with four equivalent Ga(1)Pt12 cuboctahedra. P(1) is bonded in a body-centered cubic geometry to eight equivalent Pt(1) atoms.
Pt5GaP crystallizes in the tetragonal P4/mmm space group. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 4-coordinate geometry to two equivalent Pt(2), two equivalent Ga(1), and two equivalent P(1) atoms. Both Pt(1)-Pt(2) bond lengths are 2.80 Å. Both Pt(1)-Ga(1) bond lengths are 2.80 Å. Both Pt(1)-P(1) bond lengths are 2.43 Å. In the second Pt site, Pt(2) is bonded to eight equivalent Pt(1) and four equivalent Ga(1) atoms to form distorted PtGa4Pt8 cuboctahedra that share corners with four equivalent Pt(2)Ga4Pt8 cuboctahedra, faces with four equivalent Pt(2)Ga4Pt8 cuboctahedra, and faces with four equivalent Ga(1)Pt12 cuboctahedra. All Pt(2)-Ga(1) bond lengths are 2.77 Å. Ga(1) is bonded to four equivalent Pt(2) and eight equivalent Pt(1) atoms to form GaPt12 cuboctahedra that share corners with four equivalent Ga(1)Pt12 cuboctahedra, faces with four equivalent Pt(2)Ga4Pt8 cuboctahedra, and faces with four equivalent Ga(1)Pt12 cuboctahedra. P(1) is bonded in a body-centered cubic geometry to eight equivalent Pt(1) atoms.