Th(PtGe)2 crystallizes in the tetragonal P4/nmm space group. Th(1) is bonded in a 16-coordinate geometry to four equivalent Pt(1), four equivalent Pt(2), four equivalent Ge(1), and four equivalent Ge(2) atoms. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 8-coordinate geometry to four equivalent Th(1) and four equivalent Ge(2) atoms. In the second Pt site, Pt(2) is bonded in a 5-coordinate geometry to four equivalent Th(1), one Ge(2), and four equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 4-coordinate geometry to four equivalent Th(1) and four equivalent Pt(2) atoms. In the second Ge site, Ge(2) is bonded in a 5-coordinate geometry to four equivalent Th(1), one Pt(2), and four equivalent Pt(1) atoms.
Th(PtGe)2 crystallizes in the tetragonal P4/nmm space group. Th(1) is bonded in a 16-coordinate geometry to four equivalent Pt(1), four equivalent Pt(2), four equivalent Ge(1), and four equivalent Ge(2) atoms. All Th(1)-Pt(1) bond lengths are 3.27 Å. All Th(1)-Pt(2) bond lengths are 3.38 Å. All Th(1)-Ge(1) bond lengths are 3.34 Å. All Th(1)-Ge(2) bond lengths are 3.30 Å. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 8-coordinate geometry to four equivalent Th(1) and four equivalent Ge(2) atoms. All Pt(1)-Ge(2) bond lengths are 2.55 Å. In the second Pt site, Pt(2) is bonded in a 5-coordinate geometry to four equivalent Th(1), one Ge(2), and four equivalent Ge(1) atoms. The Pt(2)-Ge(2) bond length is 2.46 Å. All Pt(2)-Ge(1) bond lengths are 2.50 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 4-coordinate geometry to four equivalent Th(1) and four equivalent Pt(2) atoms. In the second Ge site, Ge(2) is bonded in a 5-coordinate geometry to four equivalent Th(1), one Pt(2), and four equivalent Pt(1) atoms.