ThPtGa crystallizes in the hexagonal P-62m space group. Th(1) is bonded in a 11-coordinate geometry to one Pt(2), four equivalent Pt(1), and six equivalent Ga(1) atoms. There are two inequivalent Pt sites. In the first Pt site, Pt(2) is bonded in a 9-coordinate geometry to three equivalent Th(1) and six equivalent Ga(1) atoms. In the second Pt site, Pt(1) is bonded in a 9-coordinate geometry to six equivalent Th(1) and three equivalent Ga(1) atoms. Ga(1) is bonded in a 4-coordinate geometry to six equivalent Th(1), two equivalent Pt(1), and two equivalent Pt(2) atoms.
ThPtGa crystallizes in the hexagonal P-62m space group. Th(1) is bonded in a 11-coordinate geometry to one Pt(2), four equivalent Pt(1), and six equivalent Ga(1) atoms. The Th(1)-Pt(2) bond length is 3.04 Å. All Th(1)-Pt(1) bond lengths are 3.01 Å. There are two shorter (3.26 Å) and four longer (3.35 Å) Th(1)-Ga(1) bond lengths. There are two inequivalent Pt sites. In the first Pt site, Pt(2) is bonded in a 9-coordinate geometry to three equivalent Th(1) and six equivalent Ga(1) atoms. All Pt(2)-Ga(1) bond lengths are 2.70 Å. In the second Pt site, Pt(1) is bonded in a 9-coordinate geometry to six equivalent Th(1) and three equivalent Ga(1) atoms. All Pt(1)-Ga(1) bond lengths are 2.85 Å. Ga(1) is bonded in a 4-coordinate geometry to six equivalent Th(1), two equivalent Pt(1), and two equivalent Pt(2) atoms.