Ge2Pt3 crystallizes in the orthorhombic Pnma space group. There are four inequivalent Pt sites. In the first Pt site, Pt(4) is bonded in a 5-coordinate geometry to one Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. In the second Pt site, Pt(1) is bonded in a 5-coordinate geometry to one Ge(1) and four equivalent Ge(3) atoms. In the third Pt site, Pt(2) is bonded in a 5-coordinate geometry to one Ge(2) and four equivalent Ge(3) atoms. In the fourth Pt site, Pt(3) is bonded in a 5-coordinate geometry to one Ge(2), two equivalent Ge(1), and two equivalent Ge(3) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 7-coordinate geometry to one Pt(1), two equivalent Pt(4), and four equivalent Pt(3) atoms. In the second Ge site, Ge(2) is bonded in a 7-coordinate geometry to one Pt(2), two equivalent Pt(3), and four equivalent Pt(4) atoms. In the third Ge site, Ge(3) is bonded in a distorted body-centered cubic geometry to two equivalent Pt(1), two equivalent Pt(2), two equivalent Pt(3), and two equivalent Pt(4) atoms.
Ge2Pt3 crystallizes in the orthorhombic Pnma space group. There are four inequivalent Pt sites. In the first Pt site, Pt(4) is bonded in a 5-coordinate geometry to one Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. The Pt(4)-Ge(1) bond length is 2.55 Å. Both Pt(4)-Ge(2) bond lengths are 2.55 Å. Both Pt(4)-Ge(3) bond lengths are 2.65 Å. In the second Pt site, Pt(1) is bonded in a 5-coordinate geometry to one Ge(1) and four equivalent Ge(3) atoms. The Pt(1)-Ge(1) bond length is 2.57 Å. There are two shorter (2.60 Å) and two longer (2.64 Å) Pt(1)-Ge(3) bond lengths. In the third Pt site, Pt(2) is bonded in a 5-coordinate geometry to one Ge(2) and four equivalent Ge(3) atoms. The Pt(2)-Ge(2) bond length is 2.56 Å. There are two shorter (2.61 Å) and two longer (2.62 Å) Pt(2)-Ge(3) bond lengths. In the fourth Pt site, Pt(3) is bonded in a 5-coordinate geometry to one Ge(2), two equivalent Ge(1), and two equivalent Ge(3) atoms. The Pt(3)-Ge(2) bond length is 2.56 Å. Both Pt(3)-Ge(1) bond lengths are 2.56 Å. There is one shorter (2.66 Å) and one longer (2.68 Å) Pt(3)-Ge(3) bond length. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 7-coordinate geometry to one Pt(1), two equivalent Pt(4), and four equivalent Pt(3) atoms. In the second Ge site, Ge(2) is bonded in a 7-coordinate geometry to one Pt(2), two equivalent Pt(3), and four equivalent Pt(4) atoms. In the third Ge site, Ge(3) is bonded in a distorted body-centered cubic geometry to two equivalent Pt(1), two equivalent Pt(2), two equivalent Pt(3), and two equivalent Pt(4) atoms.