UPtGa crystallizes in the monoclinic Pm space group. There are three inequivalent U sites. In the first U site, U(1) is bonded in a 11-coordinate geometry to one Pt(3), two equivalent Pt(1), two equivalent Pt(2), two equivalent Ga(1), two equivalent Ga(2), and two equivalent Ga(3) atoms. In the second U site, U(2) is bonded in a 11-coordinate geometry to one Pt(3), two equivalent Pt(1), two equivalent Pt(2), two equivalent Ga(1), two equivalent Ga(2), and two equivalent Ga(3) atoms. In the third U site, U(3) is bonded in a 11-coordinate geometry to one Pt(3), two equivalent Pt(1), two equivalent Pt(2), two equivalent Ga(1), two equivalent Ga(2), and two equivalent Ga(3) atoms. There are three inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 9-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent U(3), one Ga(1), one Ga(2), and one Ga(3) atom. In the second Pt site, Pt(2) is bonded in a 9-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent U(3), one Ga(1), one Ga(2), and one Ga(3) atom. In the third Pt site, Pt(3) is bonded in a 9-coordinate geometry to one U(1), one U(2), one U(3), two equivalent Ga(1), two equivalent Ga(2), and two equivalent Ga(3) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 4-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent U(3), one Pt(1), one Pt(2), two equivalent Pt(3), and one Ga(3) atom. In the second Ga site, Ga(2) is bonded in a 4-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent U(3), one Pt(1), one Pt(2), two equivalent Pt(3), and one Ga(3) atom. In the third Ga site, Ga(3) is bonded in a 12-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent U(3), one Pt(1), one Pt(2), two equivalent Pt(3), one Ga(1), and one Ga(2) atom.
UPtGa crystallizes in the monoclinic Pm space group. There are three inequivalent U sites. In the first U site, U(1) is bonded in a 11-coordinate geometry to one Pt(3), two equivalent Pt(1), two equivalent Pt(2), two equivalent Ga(1), two equivalent Ga(2), and two equivalent Ga(3) atoms. The U(1)-Pt(3) bond length is 2.98 Å. Both U(1)-Pt(1) bond lengths are 2.93 Å. Both U(1)-Pt(2) bond lengths are 2.95 Å. Both U(1)-Ga(1) bond lengths are 3.15 Å. Both U(1)-Ga(2) bond lengths are 3.31 Å. Both U(1)-Ga(3) bond lengths are 3.32 Å. In the second U site, U(2) is bonded in a 11-coordinate geometry to one Pt(3), two equivalent Pt(1), two equivalent Pt(2), two equivalent Ga(1), two equivalent Ga(2), and two equivalent Ga(3) atoms. The U(2)-Pt(3) bond length is 2.99 Å. Both U(2)-Pt(1) bond lengths are 2.96 Å. Both U(2)-Pt(2) bond lengths are 2.93 Å. Both U(2)-Ga(1) bond lengths are 3.31 Å. Both U(2)-Ga(2) bond lengths are 3.15 Å. Both U(2)-Ga(3) bond lengths are 3.32 Å. In the third U site, U(3) is bonded in a 11-coordinate geometry to one Pt(3), two equivalent Pt(1), two equivalent Pt(2), two equivalent Ga(1), two equivalent Ga(2), and two equivalent Ga(3) atoms. The U(3)-Pt(3) bond length is 2.99 Å. Both U(3)-Pt(1) bond lengths are 2.94 Å. Both U(3)-Pt(2) bond lengths are 2.96 Å. Both U(3)-Ga(1) bond lengths are 3.31 Å. Both U(3)-Ga(2) bond lengths are 3.32 Å. Both U(3)-Ga(3) bond lengths are 3.14 Å. There are three inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 9-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent U(3), one Ga(1), one Ga(2), and one Ga(3) atom. The Pt(1)-Ga(1) bond length is 2.74 Å. The Pt(1)-Ga(2) bond length is 2.74 Å. The Pt(1)-Ga(3) bond length is 2.75 Å. In the second Pt site, Pt(2) is bonded in a 9-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent U(3), one Ga(1), one Ga(2), and one Ga(3) atom. The Pt(2)-Ga(1) bond length is 2.74 Å. The Pt(2)-Ga(2) bond length is 2.75 Å. The Pt(2)-Ga(3) bond length is 2.75 Å. In the third Pt site, Pt(3) is bonded in a 9-coordinate geometry to one U(1), one U(2), one U(3), two equivalent Ga(1), two equivalent Ga(2), and two equivalent Ga(3) atoms. Both Pt(3)-Ga(1) bond lengths are 2.67 Å. Both Pt(3)-Ga(2) bond lengths are 2.67 Å. Both Pt(3)-Ga(3) bond lengths are 2.67 Å. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 4-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent U(3), one Pt(1), one Pt(2), two equivalent Pt(3), and one Ga(3) atom. The Ga(1)-Ga(3) bond length is 2.93 Å. In the second Ga site, Ga(2) is bonded in a 4-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent U(3), one Pt(1), one Pt(2), two equivalent Pt(3), and one Ga(3) atom. The Ga(2)-Ga(3) bond length is 2.94 Å. In the third Ga site, Ga(3) is bonded in a 12-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent U(3), one Pt(1), one Pt(2), two equivalent Pt(3), one Ga(1), and one Ga(2) atom.