Pr7Pt3 crystallizes in the orthorhombic Cmc2_1 space group. There are five inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 3-coordinate geometry to one Pt(1) and two equivalent Pt(2) atoms. In the second Pr site, Pr(2) is bonded in a 3-coordinate geometry to one Pt(1) and two equivalent Pt(2) atoms. In the third Pr site, Pr(3) is bonded in a 3-coordinate geometry to one Pt(1) and two equivalent Pt(2) atoms. In the fourth Pr site, Pr(4) is bonded in a distorted water-like geometry to two equivalent Pt(2) atoms. In the fifth Pr site, Pr(5) is bonded in a distorted water-like geometry to one Pt(1) and one Pt(2) atom. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 6-coordinate geometry to one Pr(1), one Pr(2), two equivalent Pr(3), and two equivalent Pr(5) atoms. In the second Pt site, Pt(2) is bonded in a 6-coordinate geometry to one Pr(1), one Pr(2), one Pr(4), one Pr(5), and two equivalent Pr(3) atoms.
Pr7Pt3 crystallizes in the orthorhombic Cmc2_1 space group. There are five inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 3-coordinate geometry to one Pt(1) and two equivalent Pt(2) atoms. The Pr(1)-Pt(1) bond length is 2.97 Å. Both Pr(1)-Pt(2) bond lengths are 2.98 Å. In the second Pr site, Pr(2) is bonded in a 3-coordinate geometry to one Pt(1) and two equivalent Pt(2) atoms. The Pr(2)-Pt(1) bond length is 3.09 Å. Both Pr(2)-Pt(2) bond lengths are 3.00 Å. In the third Pr site, Pr(3) is bonded in a 3-coordinate geometry to one Pt(1) and two equivalent Pt(2) atoms. The Pr(3)-Pt(1) bond length is 2.99 Å. There is one shorter (2.99 Å) and one longer (3.09 Å) Pr(3)-Pt(2) bond length. In the fourth Pr site, Pr(4) is bonded in a distorted water-like geometry to two equivalent Pt(2) atoms. Both Pr(4)-Pt(2) bond lengths are 2.95 Å. In the fifth Pr site, Pr(5) is bonded in a distorted water-like geometry to one Pt(1) and one Pt(2) atom. The Pr(5)-Pt(1) bond length is 2.94 Å. The Pr(5)-Pt(2) bond length is 2.94 Å. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 6-coordinate geometry to one Pr(1), one Pr(2), two equivalent Pr(3), and two equivalent Pr(5) atoms. In the second Pt site, Pt(2) is bonded in a 6-coordinate geometry to one Pr(1), one Pr(2), one Pr(4), one Pr(5), and two equivalent Pr(3) atoms.