U3Ga2Ge3 crystallizes in the orthorhombic Fmm2 space group. There are three inequivalent U sites. In the first U site, U(1) is bonded in a 9-coordinate geometry to one U(3), two equivalent U(2), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. In the second U site, U(2) is bonded in a 9-coordinate geometry to two equivalent U(1), one Ga(2), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. In the third U site, U(3) is bonded in a 11-coordinate geometry to one U(1), two equivalent Ga(1), two equivalent Ga(2), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 6-coordinate geometry to two equivalent U(3), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. In the second Ga site, Ga(2) is bonded in a 6-coordinate geometry to one U(2), two equivalent U(3), one Ge(1), and two equivalent Ge(2) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent U(3), one Ga(2), and two equivalent Ga(1) atoms. In the second Ge site, Ge(2) is bonded in a 10-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent U(3), two equivalent Ga(1), and two equivalent Ga(2) atoms. In the third Ge site, Ge(3) is bonded in a 8-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent U(3), and two equivalent Ga(1) atoms.
U3Ga2Ge3 crystallizes in the orthorhombic Fmm2 space group. There are three inequivalent U sites. In the first U site, U(1) is bonded in a 9-coordinate geometry to one U(3), two equivalent U(2), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. The U(1)-U(3) bond length is 2.62 Å. Both U(1)-U(2) bond lengths are 2.61 Å. Both U(1)-Ge(1) bond lengths are 3.04 Å. There is one shorter (2.94 Å) and one longer (3.32 Å) U(1)-Ge(2) bond length. Both U(1)-Ge(3) bond lengths are 2.98 Å. In the second U site, U(2) is bonded in a 9-coordinate geometry to two equivalent U(1), one Ga(2), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. The U(2)-Ga(2) bond length is 2.95 Å. There is one shorter (2.99 Å) and one longer (3.14 Å) U(2)-Ge(1) bond length. Both U(2)-Ge(2) bond lengths are 3.16 Å. Both U(2)-Ge(3) bond lengths are 3.11 Å. In the third U site, U(3) is bonded in a 11-coordinate geometry to one U(1), two equivalent Ga(1), two equivalent Ga(2), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. Both U(3)-Ga(1) bond lengths are 3.35 Å. Both U(3)-Ga(2) bond lengths are 3.09 Å. Both U(3)-Ge(1) bond lengths are 3.05 Å. There is one shorter (2.88 Å) and one longer (3.31 Å) U(3)-Ge(2) bond length. Both U(3)-Ge(3) bond lengths are 3.08 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 6-coordinate geometry to two equivalent U(3), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. Both Ga(1)-Ge(1) bond lengths are 3.00 Å. Both Ga(1)-Ge(2) bond lengths are 2.94 Å. There is one shorter (2.59 Å) and one longer (2.63 Å) Ga(1)-Ge(3) bond length. In the second Ga site, Ga(2) is bonded in a 6-coordinate geometry to one U(2), two equivalent U(3), one Ge(1), and two equivalent Ge(2) atoms. The Ga(2)-Ge(1) bond length is 2.59 Å. Both Ga(2)-Ge(2) bond lengths are 2.61 Å. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent U(3), one Ga(2), and two equivalent Ga(1) atoms. In the second Ge site, Ge(2) is bonded in a 10-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent U(3), two equivalent Ga(1), and two equivalent Ga(2) atoms. In the third Ge site, Ge(3) is bonded in a 8-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent U(3), and two equivalent Ga(1) atoms.