The material structure described by 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. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr2MgMn2(GeO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.789
_cell_length_b   6.105
_cell_length_c   7.424
_cell_angle_alpha   107.607
_cell_angle_beta   97.014
_cell_angle_gamma   107.692
_symmetry_Int_Tables_number   1
_cell_volume   231.526
_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  0.354  0.206  0.735  1.0
  Pr  Pr1  1  0.646  0.794  0.265  1.0
  Mg  Mg2  1  0.000  0.000  0.000  1.0
  Mn  Mn3  1  0.000  0.500  0.000  1.0
  Mn  Mn4  1  0.000  0.500  0.500  1.0
  Ge  Ge5  1  0.643  0.802  0.726  1.0
  Ge  Ge6  1  0.357  0.198  0.274  1.0
  O  O7  1  0.875  0.564  0.253  1.0
  O  O8  1  0.298  0.894  0.104  1.0
  O  O9  1  0.041  0.134  0.313  1.0
  O  O10  1  0.702  0.106  0.896  1.0
  O  O11  1  0.583  0.272  0.483  1.0
  O  O12  1  0.312  0.343  0.096  1.0
  O  O13  1  0.688  0.657  0.904  1.0
  O  O14  1  0.959  0.866  0.687  1.0
  O  O15  1  0.125  0.436  0.747  1.0
  O  O16  1  0.417  0.728  0.517  1.0
[/CIF]
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The material structure described by 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. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr2MgMn2(GeO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.789
_cell_length_b   6.105
_cell_length_c   7.424
_cell_angle_alpha   107.607
_cell_angle_beta   97.014
_cell_angle_gamma   107.692
_symmetry_Int_Tables_number   1
_cell_volume   231.526
_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  0.354  0.206  0.735  1.0
  Pr  Pr1  1  0.646  0.794  0.265  1.0
  Mg  Mg2  1  0.000  0.000  0.000  1.0
  Mn  Mn3  1  0.000  0.500  0.000  1.0
  Mn  Mn4  1  0.000  0.500  0.500  1.0
  Ge  Ge5  1  0.643  0.802  0.726  1.0
  Ge  Ge6  1  0.357  0.198  0.274  1.0
  O  O7  1  0.875  0.564  0.253  1.0
  O  O8  1  0.298  0.894  0.104  1.0
  O  O9  1  0.041  0.134  0.313  1.0
  O  O10  1  0.702  0.106  0.896  1.0
  O  O11  1  0.583  0.272  0.483  1.0
  O  O12  1  0.312  0.343  0.096  1.0
  O  O13  1  0.688  0.657  0.904  1.0
  O  O14  1  0.959  0.866  0.687  1.0
  O  O15  1  0.125  0.436  0.747  1.0
  O  O16  1  0.417  0.728  0.517  1.0
[/CIF]
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