Pt2FeNi is Tetraauricupride-derived structured and crystallizes in the tetragonal P4/mmm space group. Fe(1) is bonded to eight equivalent Pt(1) atoms to form distorted FePt8 cuboctahedra that share corners with eight equivalent Ni(1)Ni4Pt8 cuboctahedra, corners with sixteen equivalent Pt(1)Fe4Ni4Pt4 cuboctahedra, edges with four equivalent Fe(1)Pt8 cuboctahedra, edges with eight equivalent Pt(1)Fe4Ni4Pt4 cuboctahedra, edges with eight equivalent Ni(1)Ni4Pt8 cuboctahedra, faces with two equivalent Ni(1)Ni4Pt8 cuboctahedra, and faces with four equivalent Fe(1)Pt8 cuboctahedra. Pt(1) is bonded to four equivalent Fe(1), four equivalent Pt(1), and four equivalent Ni(1) atoms to form distorted PtFe4Ni4Pt4 cuboctahedra that share corners with eight equivalent Fe(1)Pt8 cuboctahedra, corners with twelve equivalent Pt(1)Fe4Ni4Pt4 cuboctahedra, edges with four equivalent Fe(1)Pt8 cuboctahedra, edges with eight equivalent Pt(1)Fe4Ni4Pt4 cuboctahedra, edges with eight equivalent Ni(1)Ni4Pt8 cuboctahedra, faces with four equivalent Ni(1)Ni4Pt8 cuboctahedra, and faces with ten equivalent Pt(1)Fe4Ni4Pt4 cuboctahedra. Ni(1) is bonded to eight equivalent Pt(1) and four equivalent Ni(1) atoms to form distorted NiNi4Pt8 cuboctahedra that share corners with four equivalent Ni(1)Ni4Pt8 cuboctahedra, corners with eight equivalent Fe(1)Pt8 cuboctahedra, edges with eight equivalent Fe(1)Pt8 cuboctahedra, edges with sixteen equivalent Pt(1)Fe4Ni4Pt4 cuboctahedra, faces with two equivalent Fe(1)Pt8 cuboctahedra, faces with eight equivalent Pt(1)Fe4Ni4Pt4 cuboctahedra, and faces with eight equivalent Ni(1)Ni4Pt8 cuboctahedra.
Pt2FeNi is Tetraauricupride-derived structured and crystallizes in the tetragonal P4/mmm space group. Fe(1) is bonded to eight equivalent Pt(1) atoms to form distorted FePt8 cuboctahedra that share corners with eight equivalent Ni(1)Ni4Pt8 cuboctahedra, corners with sixteen equivalent Pt(1)Fe4Ni4Pt4 cuboctahedra, edges with four equivalent Fe(1)Pt8 cuboctahedra, edges with eight equivalent Pt(1)Fe4Ni4Pt4 cuboctahedra, edges with eight equivalent Ni(1)Ni4Pt8 cuboctahedra, faces with two equivalent Ni(1)Ni4Pt8 cuboctahedra, and faces with four equivalent Fe(1)Pt8 cuboctahedra. All Fe(1)-Pt(1) bond lengths are 2.62 Å. Pt(1) is bonded to four equivalent Fe(1), four equivalent Pt(1), and four equivalent Ni(1) atoms to form distorted PtFe4Ni4Pt4 cuboctahedra that share corners with eight equivalent Fe(1)Pt8 cuboctahedra, corners with twelve equivalent Pt(1)Fe4Ni4Pt4 cuboctahedra, edges with four equivalent Fe(1)Pt8 cuboctahedra, edges with eight equivalent Pt(1)Fe4Ni4Pt4 cuboctahedra, edges with eight equivalent Ni(1)Ni4Pt8 cuboctahedra, faces with four equivalent Ni(1)Ni4Pt8 cuboctahedra, and faces with ten equivalent Pt(1)Fe4Ni4Pt4 cuboctahedra. All Pt(1)-Pt(1) bond lengths are 2.69 Å. All Pt(1)-Ni(1) bond lengths are 2.66 Å. Ni(1) is bonded to eight equivalent Pt(1) and four equivalent Ni(1) atoms to form distorted NiNi4Pt8 cuboctahedra that share corners with four equivalent Ni(1)Ni4Pt8 cuboctahedra, corners with eight equivalent Fe(1)Pt8 cuboctahedra, edges with eight equivalent Fe(1)Pt8 cuboctahedra, edges with sixteen equivalent Pt(1)Fe4Ni4Pt4 cuboctahedra, faces with two equivalent Fe(1)Pt8 cuboctahedra, faces with eight equivalent Pt(1)Fe4Ni4Pt4 cuboctahedra, and faces with eight equivalent Ni(1)Ni4Pt8 cuboctahedra. All Ni(1)-Ni(1) bond lengths are 2.69 Å.