The material structure described by MgPr2Mn2(GeO5)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(4), one O(5), one O(7), and one O(9) atom to form MgO4 tetrahedra that share corners with two equivalent Pr(1)O7 pentagonal bipyramids,  a cornercorner with one Ge(2)O4 tetrahedra, corners with two equivalent Ge(1)O4 tetrahedra, and  a cornercorner with one Mn(1)O4 trigonal pyramid. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded to one O(10), one O(2), one O(3), one O(4), one O(6), one O(8), and one O(9) atom to form distorted PrO7 pentagonal bipyramids that share  a cornercorner with one Ge(1)O4 tetrahedra,  a cornercorner with one Ge(2)O4 tetrahedra, corners with two equivalent Mg(1)O4 tetrahedra,  a cornercorner with one Mn(1)O4 trigonal pyramid,  an edgeedge with one Ge(1)O4 tetrahedra,  an edgeedge with one Ge(2)O4 tetrahedra, and  an edgeedge with one Mn(1)O4 trigonal pyramid. In the second Pr site, Pr(2) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(2), one O(5), one O(6), one O(7), and one O(8) atom. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(2), one O(6), and one O(9) atom to form distorted MnO4 trigonal pyramids that share  a cornercorner with one Pr(1)O7 pentagonal bipyramid,  a cornercorner with one Mg(1)O4 tetrahedra, corners with two equivalent Ge(2)O4 tetrahedra, and  an edgeedge with one Pr(1)O7 pentagonal bipyramid. In the second Mn site, Mn(2) is bonded in a 4-coordinate geometry to one O(1), one O(10), one O(3), and one O(9) atom. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one O(10), one O(4), one O(7), and one O(8) atom to form GeO4 tetrahedra that share  a cornercorner with one Pr(1)O7 pentagonal bipyramid, corners with two equivalent Mg(1)O4 tetrahedra, and  an edgeedge with one Pr(1)O7 pentagonal bipyramid. In the second Ge site, Ge(2) is bonded to one O(2), one O(3), one O(5), and one O(6) atom to form GeO4 tetrahedra that share  a cornercorner with one Pr(1)O7 pentagonal bipyramid,  a cornercorner with one Mg(1)O4 tetrahedra, corners with two equivalent Mn(1)O4 trigonal pyramids, and  an edgeedge with one Pr(1)O7 pentagonal bipyramid. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Pr(2), one Mn(1), and one Mn(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(2), one Mn(1), and one Ge(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Pr(1), one Mn(2), and one Ge(2) atom. In the fourth O site, O(4) is bonded in a trigonal non-coplanar geometry to one Mg(1), one Pr(1), and one Ge(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Mg(1), one Pr(2), and one Ge(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(2), one Mn(1), and one Ge(2) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Mg(1), one Pr(2), and one Ge(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Pr(1), one Pr(2), and one Ge(1) atom. In the ninth O site, O(9) is bonded in a tetrahedral geometry to one Mg(1), one Pr(1), one Mn(1), and one Mn(2) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(2), one Mn(2), and one Ge(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr2MgMn2(GeO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.550
_cell_length_b   6.047
_cell_length_c   6.929
_cell_angle_alpha   104.982
_cell_angle_beta   103.006
_cell_angle_gamma   97.314
_symmetry_Int_Tables_number   1
_cell_volume   253.243
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Pr  Pr0  1  0.211  0.089  0.751  1.0
  Pr  Pr1  1  0.643  0.742  0.244  1.0
  Mg  Mg2  1  0.726  0.342  0.717  1.0
  Mn  Mn3  1  0.113  0.607  0.067  1.0
  Mn  Mn4  1  0.079  0.497  0.500  1.0
  Ge  Ge5  1  0.624  0.839  0.732  1.0
  Ge  Ge6  1  0.375  0.179  0.267  1.0
  O  O7  1  0.931  0.588  0.254  1.0
  O  O8  1  0.297  0.910  0.058  1.0
  O  O9  1  0.211  0.195  0.438  1.0
  O  O10  1  0.603  0.128  0.852  1.0
  O  O11  1  0.637  0.181  0.408  1.0
  O  O12  1  0.356  0.392  0.126  1.0
  O  O13  1  0.657  0.643  0.882  1.0
  O  O14  1  0.846  0.845  0.620  1.0
  O  O15  1  0.036  0.404  0.762  1.0
  O  O16  1  0.374  0.743  0.537  1.0
[/CIF]
.
The material structure described by MgPr2Mn2(GeO5)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(4), one O(5), one O(7), and one O(9) atom to form MgO4 tetrahedra that share corners with two equivalent Pr(1)O7 pentagonal bipyramids,  a cornercorner with one Ge(2)O4 tetrahedra, corners with two equivalent Ge(1)O4 tetrahedra, and  a cornercorner with one Mn(1)O4 trigonal pyramid. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded to one O(10), one O(2), one O(3), one O(4), one O(6), one O(8), and one O(9) atom to form distorted PrO7 pentagonal bipyramids that share  a cornercorner with one Ge(1)O4 tetrahedra,  a cornercorner with one Ge(2)O4 tetrahedra, corners with two equivalent Mg(1)O4 tetrahedra,  a cornercorner with one Mn(1)O4 trigonal pyramid,  an edgeedge with one Ge(1)O4 tetrahedra,  an edgeedge with one Ge(2)O4 tetrahedra, and  an edgeedge with one Mn(1)O4 trigonal pyramid. In the second Pr site, Pr(2) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(2), one O(5), one O(6), one O(7), and one O(8) atom. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(2), one O(6), and one O(9) atom to form distorted MnO4 trigonal pyramids that share  a cornercorner with one Pr(1)O7 pentagonal bipyramid,  a cornercorner with one Mg(1)O4 tetrahedra, corners with two equivalent Ge(2)O4 tetrahedra, and  an edgeedge with one Pr(1)O7 pentagonal bipyramid. In the second Mn site, Mn(2) is bonded in a 4-coordinate geometry to one O(1), one O(10), one O(3), and one O(9) atom. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one O(10), one O(4), one O(7), and one O(8) atom to form GeO4 tetrahedra that share  a cornercorner with one Pr(1)O7 pentagonal bipyramid, corners with two equivalent Mg(1)O4 tetrahedra, and  an edgeedge with one Pr(1)O7 pentagonal bipyramid. In the second Ge site, Ge(2) is bonded to one O(2), one O(3), one O(5), and one O(6) atom to form GeO4 tetrahedra that share  a cornercorner with one Pr(1)O7 pentagonal bipyramid,  a cornercorner with one Mg(1)O4 tetrahedra, corners with two equivalent Mn(1)O4 trigonal pyramids, and  an edgeedge with one Pr(1)O7 pentagonal bipyramid. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Pr(2), one Mn(1), and one Mn(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(2), one Mn(1), and one Ge(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Pr(1), one Mn(2), and one Ge(2) atom. In the fourth O site, O(4) is bonded in a trigonal non-coplanar geometry to one Mg(1), one Pr(1), and one Ge(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Mg(1), one Pr(2), and one Ge(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(2), one Mn(1), and one Ge(2) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Mg(1), one Pr(2), and one Ge(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Pr(1), one Pr(2), and one Ge(1) atom. In the ninth O site, O(9) is bonded in a tetrahedral geometry to one Mg(1), one Pr(1), one Mn(1), and one Mn(2) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(2), one Mn(2), and one Ge(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr2MgMn2(GeO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.550
_cell_length_b   6.047
_cell_length_c   6.929
_cell_angle_alpha   104.982
_cell_angle_beta   103.006
_cell_angle_gamma   97.314
_symmetry_Int_Tables_number   1
_cell_volume   253.243
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Pr  Pr0  1  0.211  0.089  0.751  1.0
  Pr  Pr1  1  0.643  0.742  0.244  1.0
  Mg  Mg2  1  0.726  0.342  0.717  1.0
  Mn  Mn3  1  0.113  0.607  0.067  1.0
  Mn  Mn4  1  0.079  0.497  0.500  1.0
  Ge  Ge5  1  0.624  0.839  0.732  1.0
  Ge  Ge6  1  0.375  0.179  0.267  1.0
  O  O7  1  0.931  0.588  0.254  1.0
  O  O8  1  0.297  0.910  0.058  1.0
  O  O9  1  0.211  0.195  0.438  1.0
  O  O10  1  0.603  0.128  0.852  1.0
  O  O11  1  0.637  0.181  0.408  1.0
  O  O12  1  0.356  0.392  0.126  1.0
  O  O13  1  0.657  0.643  0.882  1.0
  O  O14  1  0.846  0.845  0.620  1.0
  O  O15  1  0.036  0.404  0.762  1.0
  O  O16  1  0.374  0.743  0.537  1.0
[/CIF]
.