Pt5AgP crystallizes in the tetragonal P4/mmm space group. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded to eight equivalent Pt(2) and four equivalent Ag(1) atoms to form distorted PtAg4Pt8 cuboctahedra that share corners with four equivalent Pt(1)Ag4Pt8 cuboctahedra, faces with four equivalent Pt(1)Ag4Pt8 cuboctahedra, and faces with four equivalent Ag(1)Pt12 cuboctahedra. In the second Pt site, Pt(2) is bonded in a 11-coordinate geometry to two equivalent Pt(1), five equivalent Pt(2), two equivalent Ag(1), and two equivalent P(1) atoms. Ag(1) is bonded to four equivalent Pt(1) and eight equivalent Pt(2) atoms to form AgPt12 cuboctahedra that share corners with four equivalent Ag(1)Pt12 cuboctahedra, faces with four equivalent Pt(1)Ag4Pt8 cuboctahedra, and faces with four equivalent Ag(1)Pt12 cuboctahedra. P(1) is bonded in a body-centered cubic geometry to eight equivalent Pt(2) atoms.
Pt5AgP crystallizes in the tetragonal P4/mmm space group. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded to eight equivalent Pt(2) and four equivalent Ag(1) atoms to form distorted PtAg4Pt8 cuboctahedra that share corners with four equivalent Pt(1)Ag4Pt8 cuboctahedra, faces with four equivalent Pt(1)Ag4Pt8 cuboctahedra, and faces with four equivalent Ag(1)Pt12 cuboctahedra. All Pt(1)-Pt(2) bond lengths are 2.90 Å. All Pt(1)-Ag(1) bond lengths are 2.80 Å. In the second Pt site, Pt(2) is bonded in a 11-coordinate geometry to two equivalent Pt(1), five equivalent Pt(2), two equivalent Ag(1), and two equivalent P(1) atoms. There are four shorter (2.80 Å) and one longer (2.89 Å) Pt(2)-Pt(2) bond length. Both Pt(2)-Ag(1) bond lengths are 2.90 Å. Both Pt(2)-P(1) bond lengths are 2.45 Å. Ag(1) is bonded to four equivalent Pt(1) and eight equivalent Pt(2) atoms to form AgPt12 cuboctahedra that share corners with four equivalent Ag(1)Pt12 cuboctahedra, faces with four equivalent Pt(1)Ag4Pt8 cuboctahedra, and faces with four equivalent Ag(1)Pt12 cuboctahedra. P(1) is bonded in a body-centered cubic geometry to eight equivalent Pt(2) atoms.