MgPr2Mn2(GeO5)2 crystallizes in the triclinic P-1 space group. Mg(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms to form distorted MgO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra and edges with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 54°. Pr(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and two equivalent O(5) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form MnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 53°. In the second Mn site, Mn(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra and corners with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-54°. Ge(1) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(3), one O(4), and one O(5) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Pr(1), one Mn(1), and one Mn(2) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Pr(1), one Mn(1), and one Ge(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Mg(1), one Pr(1), one Mn(2), and one Ge(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Pr(1), one Mn(2), and one Ge(1) atom. In the fifth O site, O(5) is bonded to one Mg(1), two equivalent Pr(1), one Mn(1), and one Ge(1) atom to form a mixture of distorted corner and edge-sharing OPr2MgMnGe square pyramids.
MgPr2Mn2(GeO5)2 crystallizes in the triclinic P-1 space group. Mg(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms to form distorted MgO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra and edges with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 54°. Both Mg(1)-O(2) bond lengths are 2.15 Å. Both Mg(1)-O(3) bond lengths are 2.18 Å. Both Mg(1)-O(5) bond lengths are 2.15 Å. Pr(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and two equivalent O(5) atoms. The Pr(1)-O(1) bond length is 2.20 Å. The Pr(1)-O(2) bond length is 2.55 Å. The Pr(1)-O(3) bond length is 2.47 Å. The Pr(1)-O(4) bond length is 2.48 Å. There is one shorter (2.62 Å) and one longer (2.64 Å) Pr(1)-O(5) bond length. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form MnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 53°. Both Mn(1)-O(1) bond lengths are 2.06 Å. Both Mn(1)-O(2) bond lengths are 2.32 Å. Both Mn(1)-O(5) bond lengths are 2.42 Å. In the second Mn site, Mn(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra and corners with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-54°. Both Mn(2)-O(1) bond lengths are 2.08 Å. Both Mn(2)-O(3) bond lengths are 2.34 Å. Both Mn(2)-O(4) bond lengths are 2.36 Å. Ge(1) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(3), one O(4), and one O(5) atom. The Ge(1)-O(2) bond length is 1.80 Å. The Ge(1)-O(3) bond length is 1.83 Å. The Ge(1)-O(4) bond length is 1.74 Å. The Ge(1)-O(5) bond length is 1.84 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Pr(1), one Mn(1), and one Mn(2) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Pr(1), one Mn(1), and one Ge(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Mg(1), one Pr(1), one Mn(2), and one Ge(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Pr(1), one Mn(2), and one Ge(1) atom. In the fifth O site, O(5) is bonded to one Mg(1), two equivalent Pr(1), one Mn(1), and one Ge(1) atom to form a mixture of distorted corner and edge-sharing OPr2MgMnGe square pyramids.