LuMnGe2 crystallizes in the orthorhombic Cmmm space group. There are two inequivalent Lu sites. In the first Lu site, Lu(1) is bonded in a 8-coordinate geometry to one Ge(1), one Ge(5), two equivalent Ge(2), two equivalent Ge(3), and two equivalent Ge(4) atoms. In the second Lu site, Lu(2) is bonded to two equivalent Ge(2), two equivalent Ge(4), and three equivalent Ge(1) atoms to form a mixture of distorted corner and edge-sharing LuGe7 pentagonal bipyramids. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(5) atoms. In the second Mn site, Mn(2) is bonded in a 6-coordinate geometry to two equivalent Ge(2), two equivalent Ge(3), and two equivalent Ge(4) atoms. There are five inequivalent Ge sites. In the first Ge site, Ge(4) is bonded in a 10-coordinate geometry to two equivalent Lu(2), four equivalent Lu(1), two equivalent Mn(2), and two equivalent Ge(4) atoms. In the second Ge site, Ge(5) is bonded in a 6-coordinate geometry to two equivalent Lu(1) and four equivalent Mn(1) atoms. In the third Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Lu(1), three equivalent Lu(2), and four equivalent Mn(1) atoms. In the fourth Ge site, Ge(2) is bonded in a 7-coordinate geometry to one Lu(2), two equivalent Lu(1), one Mn(2), two equivalent Mn(1), and one Ge(2) atom. In the fifth Ge site, Ge(3) is bonded in a 2-coordinate geometry to four equivalent Lu(1) and two equivalent Mn(2) atoms.
LuMnGe2 crystallizes in the orthorhombic Cmmm space group. There are two inequivalent Lu sites. In the first Lu site, Lu(1) is bonded in a 8-coordinate geometry to one Ge(1), one Ge(5), two equivalent Ge(2), two equivalent Ge(3), and two equivalent Ge(4) atoms. The Lu(1)-Ge(1) bond length is 2.85 Å. The Lu(1)-Ge(5) bond length is 2.98 Å. Both Lu(1)-Ge(2) bond lengths are 2.93 Å. Both Lu(1)-Ge(3) bond lengths are 3.00 Å. Both Lu(1)-Ge(4) bond lengths are 2.98 Å. In the second Lu site, Lu(2) is bonded to two equivalent Ge(2), two equivalent Ge(4), and three equivalent Ge(1) atoms to form a mixture of distorted corner and edge-sharing LuGe7 pentagonal bipyramids. Both Lu(2)-Ge(2) bond lengths are 2.83 Å. Both Lu(2)-Ge(4) bond lengths are 2.92 Å. There is one shorter (2.88 Å) and two longer (2.93 Å) Lu(2)-Ge(1) bond lengths. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(5) atoms. Both Mn(1)-Ge(1) bond lengths are 2.59 Å. Both Mn(1)-Ge(2) bond lengths are 2.58 Å. Both Mn(1)-Ge(5) bond lengths are 2.57 Å. In the second Mn site, Mn(2) is bonded in a 6-coordinate geometry to two equivalent Ge(2), two equivalent Ge(3), and two equivalent Ge(4) atoms. Both Mn(2)-Ge(2) bond lengths are 2.65 Å. Both Mn(2)-Ge(3) bond lengths are 2.46 Å. Both Mn(2)-Ge(4) bond lengths are 2.47 Å. There are five inequivalent Ge sites. In the first Ge site, Ge(4) is bonded in a 10-coordinate geometry to two equivalent Lu(2), four equivalent Lu(1), two equivalent Mn(2), and two equivalent Ge(4) atoms. There is one shorter (2.66 Å) and one longer (2.74 Å) Ge(4)-Ge(4) bond length. In the second Ge site, Ge(5) is bonded in a 6-coordinate geometry to two equivalent Lu(1) and four equivalent Mn(1) atoms. In the third Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Lu(1), three equivalent Lu(2), and four equivalent Mn(1) atoms. In the fourth Ge site, Ge(2) is bonded in a 7-coordinate geometry to one Lu(2), two equivalent Lu(1), one Mn(2), two equivalent Mn(1), and one Ge(2) atom. The Ge(2)-Ge(2) bond length is 2.55 Å. In the fifth Ge site, Ge(3) is bonded in a 2-coordinate geometry to four equivalent Lu(1) and two equivalent Mn(2) atoms.