The crystal structure described by MgPr(MoO3)2 crystallizes in the monoclinic Pc space group. Mg(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. Pr(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(6), two equivalent O(4), and two equivalent O(5) atoms. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form corner-sharing MoO6 octahedra. The corner-sharing octahedral tilt angles range from 36-45°. In the second Mo site, Mo(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form corner-sharing MoO6 octahedra. The corner-sharing octahedral tilt angles range from 36-45°. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Pr(1), one Mo(1), and one Mo(2) atom to form a mixture of distorted edge and corner-sharing OPrMgMo2 trigonal pyramids. In the second O site, O(2) is bonded to one Mg(1), one Pr(1), one Mo(1), and one Mo(2) atom to form a mixture of distorted edge and corner-sharing OPrMgMo2 trigonal pyramids. In the third O site, O(3) is bonded to one Mg(1), one Pr(1), one Mo(1), and one Mo(2) atom to form a mixture of distorted edge and corner-sharing OPrMgMo2 trigonal pyramids. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Mg(1), two equivalent Pr(1), one Mo(1), and one Mo(2) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Mg(1), two equivalent Pr(1), one Mo(1), and one Mo(2) atom. In the sixth O site, O(6) is bonded to one Mg(1), one Pr(1), one Mo(1), and one Mo(2) atom to form distorted corner-sharing OPrMgMo2 trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_PrMg(MoO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.692
_cell_length_b   5.479
_cell_length_c   9.744
_cell_angle_alpha   56.056
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   252.062
_cell_formula_units_Z   2
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  0.195  0.741  0.251  1.0
  Pr  Pr1  1  0.805  0.741  0.751  1.0
  Mg  Mg2  1  0.702  0.265  0.250  1.0
  Mg  Mg3  1  0.298  0.265  0.750  1.0
  Mo  Mo4  1  0.747  0.001  0.000  1.0
  Mo  Mo5  1  0.743  0.502  0.500  1.0
  Mo  Mo6  1  0.253  0.001  0.500  1.0
  Mo  Mo7  1  0.257  0.502  0.000  1.0
  O  O8  1  0.669  0.143  0.748  1.0
  O  O9  1  0.455  0.718  0.069  1.0
  O  O10  1  0.461  0.373  0.432  1.0
  O  O11  1  0.931  0.260  0.430  1.0
  O  O12  1  0.943  0.605  0.066  1.0
  O  O13  1  0.202  0.893  0.753  1.0
  O  O14  1  0.331  0.143  0.248  1.0
  O  O15  1  0.539  0.373  0.932  1.0
  O  O16  1  0.545  0.718  0.569  1.0
  O  O17  1  0.069  0.260  0.930  1.0
  O  O18  1  0.057  0.605  0.566  1.0
  O  O19  1  0.798  0.893  0.253  1.0
[/CIF]
.
The crystal structure described by MgPr(MoO3)2 crystallizes in the monoclinic Pc space group. Mg(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. Pr(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(6), two equivalent O(4), and two equivalent O(5) atoms. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form corner-sharing MoO6 octahedra. The corner-sharing octahedral tilt angles range from 36-45°. In the second Mo site, Mo(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form corner-sharing MoO6 octahedra. The corner-sharing octahedral tilt angles range from 36-45°. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Pr(1), one Mo(1), and one Mo(2) atom to form a mixture of distorted edge and corner-sharing OPrMgMo2 trigonal pyramids. In the second O site, O(2) is bonded to one Mg(1), one Pr(1), one Mo(1), and one Mo(2) atom to form a mixture of distorted edge and corner-sharing OPrMgMo2 trigonal pyramids. In the third O site, O(3) is bonded to one Mg(1), one Pr(1), one Mo(1), and one Mo(2) atom to form a mixture of distorted edge and corner-sharing OPrMgMo2 trigonal pyramids. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Mg(1), two equivalent Pr(1), one Mo(1), and one Mo(2) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Mg(1), two equivalent Pr(1), one Mo(1), and one Mo(2) atom. In the sixth O site, O(6) is bonded to one Mg(1), one Pr(1), one Mo(1), and one Mo(2) atom to form distorted corner-sharing OPrMgMo2 trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_PrMg(MoO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.692
_cell_length_b   5.479
_cell_length_c   9.744
_cell_angle_alpha   56.056
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   252.062
_cell_formula_units_Z   2
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  0.195  0.741  0.251  1.0
  Pr  Pr1  1  0.805  0.741  0.751  1.0
  Mg  Mg2  1  0.702  0.265  0.250  1.0
  Mg  Mg3  1  0.298  0.265  0.750  1.0
  Mo  Mo4  1  0.747  0.001  0.000  1.0
  Mo  Mo5  1  0.743  0.502  0.500  1.0
  Mo  Mo6  1  0.253  0.001  0.500  1.0
  Mo  Mo7  1  0.257  0.502  0.000  1.0
  O  O8  1  0.669  0.143  0.748  1.0
  O  O9  1  0.455  0.718  0.069  1.0
  O  O10  1  0.461  0.373  0.432  1.0
  O  O11  1  0.931  0.260  0.430  1.0
  O  O12  1  0.943  0.605  0.066  1.0
  O  O13  1  0.202  0.893  0.753  1.0
  O  O14  1  0.331  0.143  0.248  1.0
  O  O15  1  0.539  0.373  0.932  1.0
  O  O16  1  0.545  0.718  0.569  1.0
  O  O17  1  0.069  0.260  0.930  1.0
  O  O18  1  0.057  0.605  0.566  1.0
  O  O19  1  0.798  0.893  0.253  1.0
[/CIF]
.