Fe3Pt is Uranium Silicide structured and crystallizes in the tetragonal P4/mmm space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to four equivalent Fe(1), four equivalent Fe(2), and four equivalent Pt(1) atoms to form distorted FeFe8Pt4 cuboctahedra that share corners with twelve equivalent Fe(1)Fe8Pt4 cuboctahedra, edges with eight equivalent Fe(1)Fe8Pt4 cuboctahedra, edges with eight equivalent Fe(2)Fe8Pt4 cuboctahedra, edges with eight equivalent Pt(1)Fe12 cuboctahedra, faces with four equivalent Fe(2)Fe8Pt4 cuboctahedra, faces with four equivalent Pt(1)Fe12 cuboctahedra, and faces with ten equivalent Fe(1)Fe8Pt4 cuboctahedra. In the second Fe site, Fe(2) is bonded to eight equivalent Fe(1) and four equivalent Pt(1) atoms to form FeFe8Pt4 cuboctahedra that share corners with twelve equivalent Fe(2)Fe8Pt4 cuboctahedra, edges with eight equivalent Pt(1)Fe12 cuboctahedra, edges with sixteen equivalent Fe(1)Fe8Pt4 cuboctahedra, faces with four equivalent Pt(1)Fe12 cuboctahedra, faces with six equivalent Fe(2)Fe8Pt4 cuboctahedra, and faces with eight equivalent Fe(1)Fe8Pt4 cuboctahedra. Pt(1) is bonded to four equivalent Fe(2) and eight equivalent Fe(1) atoms to form PtFe12 cuboctahedra that share corners with twelve equivalent Pt(1)Fe12 cuboctahedra, edges with eight equivalent Fe(2)Fe8Pt4 cuboctahedra, edges with sixteen equivalent Fe(1)Fe8Pt4 cuboctahedra, faces with four equivalent Fe(2)Fe8Pt4 cuboctahedra, faces with six equivalent Pt(1)Fe12 cuboctahedra, and faces with eight equivalent Fe(1)Fe8Pt4 cuboctahedra.
Fe3Pt is Uranium Silicide structured and crystallizes in the tetragonal P4/mmm space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to four equivalent Fe(1), four equivalent Fe(2), and four equivalent Pt(1) atoms to form distorted FeFe8Pt4 cuboctahedra that share corners with twelve equivalent Fe(1)Fe8Pt4 cuboctahedra, edges with eight equivalent Fe(1)Fe8Pt4 cuboctahedra, edges with eight equivalent Fe(2)Fe8Pt4 cuboctahedra, edges with eight equivalent Pt(1)Fe12 cuboctahedra, faces with four equivalent Fe(2)Fe8Pt4 cuboctahedra, faces with four equivalent Pt(1)Fe12 cuboctahedra, and faces with ten equivalent Fe(1)Fe8Pt4 cuboctahedra. All Fe(1)-Fe(1) bond lengths are 2.71 Å. All Fe(1)-Fe(2) bond lengths are 2.62 Å. All Fe(1)-Pt(1) bond lengths are 2.62 Å. In the second Fe site, Fe(2) is bonded to eight equivalent Fe(1) and four equivalent Pt(1) atoms to form FeFe8Pt4 cuboctahedra that share corners with twelve equivalent Fe(2)Fe8Pt4 cuboctahedra, edges with eight equivalent Pt(1)Fe12 cuboctahedra, edges with sixteen equivalent Fe(1)Fe8Pt4 cuboctahedra, faces with four equivalent Pt(1)Fe12 cuboctahedra, faces with six equivalent Fe(2)Fe8Pt4 cuboctahedra, and faces with eight equivalent Fe(1)Fe8Pt4 cuboctahedra. All Fe(2)-Pt(1) bond lengths are 2.71 Å. Pt(1) is bonded to four equivalent Fe(2) and eight equivalent Fe(1) atoms to form PtFe12 cuboctahedra that share corners with twelve equivalent Pt(1)Fe12 cuboctahedra, edges with eight equivalent Fe(2)Fe8Pt4 cuboctahedra, edges with sixteen equivalent Fe(1)Fe8Pt4 cuboctahedra, faces with four equivalent Fe(2)Fe8Pt4 cuboctahedra, faces with six equivalent Pt(1)Fe12 cuboctahedra, and faces with eight equivalent Fe(1)Fe8Pt4 cuboctahedra.