Lu3Pt4 crystallizes in the triclinic P-1 space group. There are three inequivalent Lu sites. In the first Lu site, Lu(1) is bonded in a 9-coordinate geometry to one Pt(1), one Pt(2), two equivalent Pt(3), two equivalent Pt(5), and three equivalent Pt(4) atoms. In the second Lu site, Lu(2) is bonded in a 9-coordinate geometry to one Pt(1), one Pt(2), two equivalent Pt(3), two equivalent Pt(4), and three equivalent Pt(5) atoms. In the third Lu site, Lu(3) is bonded in a 9-coordinate geometry to one Pt(1), one Pt(2), two equivalent Pt(4), two equivalent Pt(5), and three equivalent Pt(3) atoms. There are five inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 6-coordinate geometry to two equivalent Lu(1), two equivalent Lu(2), and two equivalent Lu(3) atoms. In the second Pt site, Pt(2) is bonded in a distorted octahedral geometry to two equivalent Lu(1), two equivalent Lu(2), and two equivalent Lu(3) atoms. In the third Pt site, Pt(3) is bonded in a 10-coordinate geometry to two equivalent Lu(1), two equivalent Lu(2), three equivalent Lu(3), one Pt(3), one Pt(4), and one Pt(5) atom. In the fourth Pt site, Pt(4) is bonded in a 10-coordinate geometry to two equivalent Lu(2), two equivalent Lu(3), three equivalent Lu(1), one Pt(3), one Pt(4), and one Pt(5) atom. In the fifth Pt site, Pt(5) is bonded in a 10-coordinate geometry to two equivalent Lu(1), two equivalent Lu(3), three equivalent Lu(2), one Pt(3), one Pt(4), and one Pt(5) atom.
Lu3Pt4 crystallizes in the triclinic P-1 space group. There are three inequivalent Lu sites. In the first Lu site, Lu(1) is bonded in a 9-coordinate geometry to one Pt(1), one Pt(2), two equivalent Pt(3), two equivalent Pt(5), and three equivalent Pt(4) atoms. The Lu(1)-Pt(1) bond length is 2.82 Å. The Lu(1)-Pt(2) bond length is 2.90 Å. There is one shorter (2.89 Å) and one longer (3.04 Å) Lu(1)-Pt(3) bond length. There is one shorter (2.80 Å) and one longer (2.92 Å) Lu(1)-Pt(5) bond length. There are a spread of Lu(1)-Pt(4) bond distances ranging from 2.81-3.24 Å. In the second Lu site, Lu(2) is bonded in a 9-coordinate geometry to one Pt(1), one Pt(2), two equivalent Pt(3), two equivalent Pt(4), and three equivalent Pt(5) atoms. The Lu(2)-Pt(1) bond length is 2.82 Å. The Lu(2)-Pt(2) bond length is 2.90 Å. There is one shorter (2.80 Å) and one longer (2.92 Å) Lu(2)-Pt(3) bond length. There is one shorter (2.89 Å) and one longer (3.04 Å) Lu(2)-Pt(4) bond length. There are a spread of Lu(2)-Pt(5) bond distances ranging from 2.81-3.24 Å. In the third Lu site, Lu(3) is bonded in a 9-coordinate geometry to one Pt(1), one Pt(2), two equivalent Pt(4), two equivalent Pt(5), and three equivalent Pt(3) atoms. The Lu(3)-Pt(1) bond length is 2.82 Å. The Lu(3)-Pt(2) bond length is 2.90 Å. There is one shorter (2.80 Å) and one longer (2.91 Å) Lu(3)-Pt(4) bond length. There is one shorter (2.89 Å) and one longer (3.05 Å) Lu(3)-Pt(5) bond length. There are a spread of Lu(3)-Pt(3) bond distances ranging from 2.81-3.24 Å. There are five inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 6-coordinate geometry to two equivalent Lu(1), two equivalent Lu(2), and two equivalent Lu(3) atoms. In the second Pt site, Pt(2) is bonded in a distorted octahedral geometry to two equivalent Lu(1), two equivalent Lu(2), and two equivalent Lu(3) atoms. In the third Pt site, Pt(3) is bonded in a 10-coordinate geometry to two equivalent Lu(1), two equivalent Lu(2), three equivalent Lu(3), one Pt(3), one Pt(4), and one Pt(5) atom. The Pt(3)-Pt(3) bond length is 2.88 Å. The Pt(3)-Pt(4) bond length is 2.92 Å. The Pt(3)-Pt(5) bond length is 2.92 Å. In the fourth Pt site, Pt(4) is bonded in a 10-coordinate geometry to two equivalent Lu(2), two equivalent Lu(3), three equivalent Lu(1), one Pt(3), one Pt(4), and one Pt(5) atom. The Pt(4)-Pt(4) bond length is 2.88 Å. The Pt(4)-Pt(5) bond length is 2.92 Å. In the fifth Pt site, Pt(5) is bonded in a 10-coordinate geometry to two equivalent Lu(1), two equivalent Lu(3), three equivalent Lu(2), one Pt(3), one Pt(4), and one Pt(5) atom. The Pt(5)-Pt(5) bond length is 2.88 Å.