Pr3Pt4 crystallizes in the trigonal R-3 space group. Pr(1) is bonded in a 9-coordinate geometry to one Pt(2), one Pt(3), and seven equivalent Pt(1) atoms. There are three inequivalent Pt sites. In the first Pt site, Pt(3) is bonded in a 6-coordinate geometry to six equivalent Pr(1) atoms. In the second Pt site, Pt(1) is bonded in a 10-coordinate geometry to seven equivalent Pr(1) and three equivalent Pt(1) atoms. In the third Pt site, Pt(2) is bonded in a distorted octahedral geometry to six equivalent Pr(1) atoms.
Pr3Pt4 crystallizes in the trigonal R-3 space group. Pr(1) is bonded in a 9-coordinate geometry to one Pt(2), one Pt(3), and seven equivalent Pt(1) atoms. The Pr(1)-Pt(2) bond length is 3.04 Å. The Pr(1)-Pt(3) bond length is 2.98 Å. There are a spread of Pr(1)-Pt(1) bond distances ranging from 2.93-3.37 Å. There are three inequivalent Pt sites. In the first Pt site, Pt(3) is bonded in a 6-coordinate geometry to six equivalent Pr(1) atoms. In the second Pt site, Pt(1) is bonded in a 10-coordinate geometry to seven equivalent Pr(1) and three equivalent Pt(1) atoms. There is one shorter (2.91 Å) and two longer (3.02 Å) Pt(1)-Pt(1) bond lengths. In the third Pt site, Pt(2) is bonded in a distorted octahedral geometry to six equivalent Pr(1) atoms.