ThGa crystallizes in the orthorhombic Pnma space group. There are two inequivalent Th sites. In the first Th site, Th(1) is bonded in a 7-coordinate geometry to three equivalent Ga(2) and four equivalent Ga(1) atoms. In the second Th site, Th(2) is bonded in a 7-coordinate geometry to three equivalent Ga(1) and four equivalent Ga(2) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to three equivalent Th(2), four equivalent Th(1), and two equivalent Ga(2) atoms. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to three equivalent Th(1), four equivalent Th(2), and two equivalent Ga(1) atoms.
ThGa crystallizes in the orthorhombic Pnma space group. There are two inequivalent Th sites. In the first Th site, Th(1) is bonded in a 7-coordinate geometry to three equivalent Ga(2) and four equivalent Ga(1) atoms. There are two shorter (3.14 Å) and one longer (3.29 Å) Th(1)-Ga(2) bond length. There are a spread of Th(1)-Ga(1) bond distances ranging from 3.13-3.29 Å. In the second Th site, Th(2) is bonded in a 7-coordinate geometry to three equivalent Ga(1) and four equivalent Ga(2) atoms. There are two shorter (3.13 Å) and one longer (3.30 Å) Th(2)-Ga(1) bond length. There are a spread of Th(2)-Ga(2) bond distances ranging from 3.13-3.27 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to three equivalent Th(2), four equivalent Th(1), and two equivalent Ga(2) atoms. Both Ga(1)-Ga(2) bond lengths are 2.63 Å. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to three equivalent Th(1), four equivalent Th(2), and two equivalent Ga(1) atoms.