Pt3Ti is Uranium Silicide-like structured and crystallizes in the trigonal P-3m1 space group. There are four inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to three Pt(1,1); three equivalent Pt(2); and six equivalent Pt(3) atoms to form TiPt12 cuboctahedra that share corners with three equivalent Ti(3)Pt12 cuboctahedra; corners with six equivalent Ti(1)Pt12 cuboctahedra; corners with six equivalent Pt(4)Ti4Pt8 cuboctahedra; edges with six equivalent Pt(3)Ti4Pt8 cuboctahedra; edges with nine Pt(1,1)Ti4Pt8 cuboctahedra;  a faceface with one Ti(4)Pt12 cuboctahedra; faces with three equivalent Ti(2)Pt12 cuboctahedra; faces with three equivalent Ti(3)Pt12 cuboctahedra; faces with three Pt(1,1)Ti4Pt8 cuboctahedra; and faces with six equivalent Pt(3)Ti4Pt8 cuboctahedra. In the second Ti site, Ti(2) is bonded to three equivalent Pt(3), three equivalent Pt(4), and six equivalent Pt(2) atoms to form TiPt12 cuboctahedra that share corners with three equivalent Ti(3)Pt12 cuboctahedra; corners with nine equivalent Ti(2)Pt12 cuboctahedra; edges with three Pt(1,1)Ti4Pt8 cuboctahedra; edges with six equivalent Pt(3)Ti4Pt8 cuboctahedra; edges with six equivalent Pt(4)Ti4Pt8 cuboctahedra; faces with three equivalent Ti(1)Pt12 cuboctahedra; faces with three equivalent Ti(4)Pt12 cuboctahedra; faces with three equivalent Pt(3)Ti4Pt8 cuboctahedra; and faces with three equivalent Pt(4)Ti4Pt8 cuboctahedra. In the third Ti site, Ti(3) is bonded to three equivalent Pt(3) and nine Pt(1,1) atoms to form TiPt12 cuboctahedra that share corners with three equivalent Ti(1)Pt12 cuboctahedra; corners with three equivalent Ti(2)Pt12 cuboctahedra; corners with six equivalent Ti(3)Pt12 cuboctahedra; edges with nine equivalent Pt(3)Ti4Pt8 cuboctahedra; edges with twelve Pt(1,1)Ti4Pt8 cuboctahedra; faces with three equivalent Ti(1)Pt12 cuboctahedra; faces with three equivalent Ti(3)Pt12 cuboctahedra; faces with three equivalent Pt(3)Ti4Pt8 cuboctahedra; and faces with nine Pt(1,1)Ti4Pt8 cuboctahedra. In the fourth Ti site, Ti(4) is bonded to six equivalent Pt(2) and six equivalent Pt(4) atoms to form TiPt12 cuboctahedra that share corners with six equivalent Ti(4)Pt12 cuboctahedra, corners with twelve equivalent Pt(3)Ti4Pt8 cuboctahedra, edges with six equivalent Pt(4)Ti4Pt8 cuboctahedra, faces with two equivalent Ti(1)Pt12 cuboctahedra, faces with six equivalent Ti(2)Pt12 cuboctahedra, and faces with six equivalent Pt(4)Ti4Pt8 cuboctahedra. There are five inequivalent Pt sites. In the first Pt site, Pt(1) is bonded to one Ti(1); three equivalent Ti(3); two equivalent Pt(3); and six Pt(1,1) atoms to form distorted PtTi4Pt8 cuboctahedra that share corners with three equivalent Pt(3)Ti4Pt8 cuboctahedra; corners with six equivalent Pt(1)Ti4Pt8 cuboctahedra;  an edgeedge with one Ti(2)Pt12 cuboctahedra; edges with three equivalent Ti(1)Pt12 cuboctahedra; edges with four equivalent Ti(3)Pt12 cuboctahedra; edges with six equivalent Pt(3)Ti4Pt8 cuboctahedra; edges with eight Pt(1,1)Ti4Pt8 cuboctahedra;  a faceface with one Ti(1)Pt12 cuboctahedra; faces with three equivalent Ti(3)Pt12 cuboctahedra; faces with five equivalent Pt(3)Ti4Pt8 cuboctahedra; and faces with nine Pt(1,1)Ti4Pt8 cuboctahedra. In the second Pt site, Pt(2) is bonded in a distorted see-saw-like geometry to one Ti(1), one Ti(4), two equivalent Ti(2), two equivalent Pt(3), and two equivalent Pt(4) atoms. In the third Pt site, Pt(3) is bonded to one Ti(2); one Ti(3); two equivalent Ti(1); two Pt(1,1); two equivalent Pt(2); and four equivalent Pt(3) atoms to form distorted PtTi4Pt8 cuboctahedra that share corners with two equivalent Ti(4)Pt12 cuboctahedra; corners with three equivalent Pt(1)Ti4Pt8 cuboctahedra; corners with four equivalent Pt(4)Ti4Pt8 cuboctahedra; corners with six equivalent Pt(3)Ti4Pt8 cuboctahedra; edges with two equivalent Ti(1)Pt12 cuboctahedra; edges with two equivalent Ti(2)Pt12 cuboctahedra; edges with three equivalent Ti(3)Pt12 cuboctahedra; edges with four equivalent Pt(3)Ti4Pt8 cuboctahedra; edges with six Pt(1,1)Ti4Pt8 cuboctahedra;  a faceface with one Ti(2)Pt12 cuboctahedra;  a faceface with one Ti(3)Pt12 cuboctahedra;  a faceface with one Pt(4)Ti4Pt8 cuboctahedra; faces with two equivalent Ti(1)Pt12 cuboctahedra; faces with four equivalent Pt(3)Ti4Pt8 cuboctahedra; and faces with five Pt(1,1)Ti4Pt8 cuboctahedra. In the fourth Pt site, Pt(1) is bonded to one Ti(1), three equivalent Ti(3), two equivalent Pt(3), and six equivalent Pt(1) atoms to form distorted PtTi4Pt8 cuboctahedra that share corners with three equivalent Pt(3)Ti4Pt8 cuboctahedra, corners with six equivalent Pt(1)Ti4Pt8 cuboctahedra,  an edgeedge with one Ti(2)Pt12 cuboctahedra, edges with three equivalent Ti(1)Pt12 cuboctahedra, edges with four equivalent Ti(3)Pt12 cuboctahedra, edges with six equivalent Pt(3)Ti4Pt8 cuboctahedra, edges with eight equivalent Pt(1)Ti4Pt8 cuboctahedra,  a faceface with one Ti(1)Pt12 cuboctahedra, faces with three equivalent Ti(3)Pt12 cuboctahedra, faces with five equivalent Pt(3)Ti4Pt8 cuboctahedra, and faces with nine equivalent Pt(1)Ti4Pt8 cuboctahedra. In the fifth Pt site, Pt(4) is bonded to two equivalent Ti(2), two equivalent Ti(4), four equivalent Pt(2), and four equivalent Pt(4) atoms to form distorted PtTi4Pt8 cuboctahedra that share corners with four equivalent Ti(1)Pt12 cuboctahedra, corners with six equivalent Pt(4)Ti4Pt8 cuboctahedra, corners with eight equivalent Pt(3)Ti4Pt8 cuboctahedra, edges with two equivalent Ti(4)Pt12 cuboctahedra, edges with four equivalent Ti(2)Pt12 cuboctahedra, edges with four equivalent Pt(4)Ti4Pt8 cuboctahedra, faces with two equivalent Ti(2)Pt12 cuboctahedra, faces with two equivalent Ti(4)Pt12 cuboctahedra, faces with two equivalent Pt(3)Ti4Pt8 cuboctahedra, and faces with four equivalent Pt(4)Ti4Pt8 cuboctahedra.
Pt3Ti is Uranium Silicide-like structured and crystallizes in the trigonal P-3m1 space group. There are four inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to three Pt(1,1); three equivalent Pt(2); and six equivalent Pt(3) atoms to form TiPt12 cuboctahedra that share corners with three equivalent Ti(3)Pt12 cuboctahedra; corners with six equivalent Ti(1)Pt12 cuboctahedra; corners with six equivalent Pt(4)Ti4Pt8 cuboctahedra; edges with six equivalent Pt(3)Ti4Pt8 cuboctahedra; edges with nine Pt(1,1)Ti4Pt8 cuboctahedra;  a faceface with one Ti(4)Pt12 cuboctahedra; faces with three equivalent Ti(2)Pt12 cuboctahedra; faces with three equivalent Ti(3)Pt12 cuboctahedra; faces with three Pt(1,1)Ti4Pt8 cuboctahedra; and faces with six equivalent Pt(3)Ti4Pt8 cuboctahedra. All Ti(1)-Pt(1,1) bond lengths are 2.85 Å. All Ti(1)-Pt(2) bond lengths are 2.70 Å. All Ti(1)-Pt(3) bond lengths are 2.78 Å. In the second Ti site, Ti(2) is bonded to three equivalent Pt(3), three equivalent Pt(4), and six equivalent Pt(2) atoms to form TiPt12 cuboctahedra that share corners with three equivalent Ti(3)Pt12 cuboctahedra; corners with nine equivalent Ti(2)Pt12 cuboctahedra; edges with three Pt(1,1)Ti4Pt8 cuboctahedra; edges with six equivalent Pt(3)Ti4Pt8 cuboctahedra; edges with six equivalent Pt(4)Ti4Pt8 cuboctahedra; faces with three equivalent Ti(1)Pt12 cuboctahedra; faces with three equivalent Ti(4)Pt12 cuboctahedra; faces with three equivalent Pt(3)Ti4Pt8 cuboctahedra; and faces with three equivalent Pt(4)Ti4Pt8 cuboctahedra. All Ti(2)-Pt(3) bond lengths are 2.77 Å. All Ti(2)-Pt(4) bond lengths are 2.79 Å. All Ti(2)-Pt(2) bond lengths are 2.78 Å. In the third Ti site, Ti(3) is bonded to three equivalent Pt(3) and nine Pt(1,1) atoms to form TiPt12 cuboctahedra that share corners with three equivalent Ti(1)Pt12 cuboctahedra; corners with three equivalent Ti(2)Pt12 cuboctahedra; corners with six equivalent Ti(3)Pt12 cuboctahedra; edges with nine equivalent Pt(3)Ti4Pt8 cuboctahedra; edges with twelve Pt(1,1)Ti4Pt8 cuboctahedra; faces with three equivalent Ti(1)Pt12 cuboctahedra; faces with three equivalent Ti(3)Pt12 cuboctahedra; faces with three equivalent Pt(3)Ti4Pt8 cuboctahedra; and faces with nine Pt(1,1)Ti4Pt8 cuboctahedra. All Ti(3)-Pt(3) bond lengths are 2.78 Å. There are three shorter (2.75 Å) and six longer (2.78 Å) Ti(3)-Pt(1,1) bond lengths. In the fourth Ti site, Ti(4) is bonded to six equivalent Pt(2) and six equivalent Pt(4) atoms to form TiPt12 cuboctahedra that share corners with six equivalent Ti(4)Pt12 cuboctahedra, corners with twelve equivalent Pt(3)Ti4Pt8 cuboctahedra, edges with six equivalent Pt(4)Ti4Pt8 cuboctahedra, faces with two equivalent Ti(1)Pt12 cuboctahedra, faces with six equivalent Ti(2)Pt12 cuboctahedra, and faces with six equivalent Pt(4)Ti4Pt8 cuboctahedra. All Ti(4)-Pt(2) bond lengths are 2.78 Å. All Ti(4)-Pt(4) bond lengths are 2.78 Å. There are five inequivalent Pt sites. In the first Pt site, Pt(1) is bonded to one Ti(1); three equivalent Ti(3); two equivalent Pt(3); and six Pt(1,1) atoms to form distorted PtTi4Pt8 cuboctahedra that share corners with three equivalent Pt(3)Ti4Pt8 cuboctahedra; corners with six equivalent Pt(1)Ti4Pt8 cuboctahedra;  an edgeedge with one Ti(2)Pt12 cuboctahedra; edges with three equivalent Ti(1)Pt12 cuboctahedra; edges with four equivalent Ti(3)Pt12 cuboctahedra; edges with six equivalent Pt(3)Ti4Pt8 cuboctahedra; edges with eight Pt(1,1)Ti4Pt8 cuboctahedra;  a faceface with one Ti(1)Pt12 cuboctahedra; faces with three equivalent Ti(3)Pt12 cuboctahedra; faces with five equivalent Pt(3)Ti4Pt8 cuboctahedra; and faces with nine Pt(1,1)Ti4Pt8 cuboctahedra. Both Pt(1)-Pt(3) bond lengths are 2.77 Å. There are four shorter (2.77 Å) and two longer (2.78 Å) Pt(1)-Pt(1,1) bond lengths. In the second Pt site, Pt(2) is bonded in a distorted see-saw-like geometry to one Ti(1), one Ti(4), two equivalent Ti(2), two equivalent Pt(3), and two equivalent Pt(4) atoms. Both Pt(2)-Pt(3) bond lengths are 2.79 Å. Both Pt(2)-Pt(4) bond lengths are 2.78 Å. In the third Pt site, Pt(3) is bonded to one Ti(2); one Ti(3); two equivalent Ti(1); two Pt(1,1); two equivalent Pt(2); and four equivalent Pt(3) atoms to form distorted PtTi4Pt8 cuboctahedra that share corners with two equivalent Ti(4)Pt12 cuboctahedra; corners with three equivalent Pt(1)Ti4Pt8 cuboctahedra; corners with four equivalent Pt(4)Ti4Pt8 cuboctahedra; corners with six equivalent Pt(3)Ti4Pt8 cuboctahedra; edges with two equivalent Ti(1)Pt12 cuboctahedra; edges with two equivalent Ti(2)Pt12 cuboctahedra; edges with three equivalent Ti(3)Pt12 cuboctahedra; edges with four equivalent Pt(3)Ti4Pt8 cuboctahedra; edges with six Pt(1,1)Ti4Pt8 cuboctahedra;  a faceface with one Ti(2)Pt12 cuboctahedra;  a faceface with one Ti(3)Pt12 cuboctahedra;  a faceface with one Pt(4)Ti4Pt8 cuboctahedra; faces with two equivalent Ti(1)Pt12 cuboctahedra; faces with four equivalent Pt(3)Ti4Pt8 cuboctahedra; and faces with five Pt(1,1)Ti4Pt8 cuboctahedra. The Pt(3)-Pt(1) bond length is 2.77 Å. There are two shorter (2.77 Å) and two longer (2.78 Å) Pt(3)-Pt(3) bond lengths. In the fourth Pt site, Pt(1) is bonded to one Ti(1), three equivalent Ti(3), two equivalent Pt(3), and six equivalent Pt(1) atoms to form distorted PtTi4Pt8 cuboctahedra that share corners with three equivalent Pt(3)Ti4Pt8 cuboctahedra, corners with six equivalent Pt(1)Ti4Pt8 cuboctahedra,  an edgeedge with one Ti(2)Pt12 cuboctahedra, edges with three equivalent Ti(1)Pt12 cuboctahedra, edges with four equivalent Ti(3)Pt12 cuboctahedra, edges with six equivalent Pt(3)Ti4Pt8 cuboctahedra, edges with eight equivalent Pt(1)Ti4Pt8 cuboctahedra,  a faceface with one Ti(1)Pt12 cuboctahedra, faces with three equivalent Ti(3)Pt12 cuboctahedra, faces with five equivalent Pt(3)Ti4Pt8 cuboctahedra, and faces with nine equivalent Pt(1)Ti4Pt8 cuboctahedra. In the fifth Pt site, Pt(4) is bonded to two equivalent Ti(2), two equivalent Ti(4), four equivalent Pt(2), and four equivalent Pt(4) atoms to form distorted PtTi4Pt8 cuboctahedra that share corners with four equivalent Ti(1)Pt12 cuboctahedra, corners with six equivalent Pt(4)Ti4Pt8 cuboctahedra, corners with eight equivalent Pt(3)Ti4Pt8 cuboctahedra, edges with two equivalent Ti(4)Pt12 cuboctahedra, edges with four equivalent Ti(2)Pt12 cuboctahedra, edges with four equivalent Pt(4)Ti4Pt8 cuboctahedra, faces with two equivalent Ti(2)Pt12 cuboctahedra, faces with two equivalent Ti(4)Pt12 cuboctahedra, faces with two equivalent Pt(3)Ti4Pt8 cuboctahedra, and faces with four equivalent Pt(4)Ti4Pt8 cuboctahedra. All Pt(4)-Pt(4) bond lengths are 2.78 Å.