The material structure described by Pr2Ga is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 4-coordinate geometry to five equivalent Ga(1) atoms. In the second Pr site, Pr(2) is bonded in a 3-coordinate geometry to five equivalent Ga(1) atoms. Ga(1) is bonded in a 10-coordinate geometry to five equivalent Pr(1) and five equivalent Pr(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr2Ga
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.245
_cell_length_b   6.785
_cell_length_c   9.712
_cell_angle_alpha   89.994
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   345.643
_cell_formula_units_Z   4
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  0.250  0.307  0.415  1.0
  Pr  Pr1  1  0.750  0.000  0.307  1.0
  Pr  Pr2  1  0.750  0.500  0.193  1.0
  Pr  Pr3  1  0.750  0.693  0.585  1.0
  Pr  Pr4  1  0.750  0.193  0.915  1.0
  Pr  Pr5  1  0.250  0.500  0.807  1.0
  Pr  Pr6  1  0.250  1.000  0.692  1.0
  Pr  Pr7  1  0.250  0.807  0.085  1.0
  Ga  Ga8  1  0.750  0.221  0.594  1.0
  Ga  Ga9  1  0.250  0.779  0.405  1.0
  Ga  Ga10  1  0.750  0.720  0.905  1.0
  Ga  Ga11  1  0.250  0.280  0.095  1.0
[/CIF]
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The material structure described by Pr2Ga is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 4-coordinate geometry to five equivalent Ga(1) atoms. In the second Pr site, Pr(2) is bonded in a 3-coordinate geometry to five equivalent Ga(1) atoms. Ga(1) is bonded in a 10-coordinate geometry to five equivalent Pr(1) and five equivalent Pr(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr2Ga
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.245
_cell_length_b   6.785
_cell_length_c   9.712
_cell_angle_alpha   89.994
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   345.643
_cell_formula_units_Z   4
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  0.250  0.307  0.415  1.0
  Pr  Pr1  1  0.750  0.000  0.307  1.0
  Pr  Pr2  1  0.750  0.500  0.193  1.0
  Pr  Pr3  1  0.750  0.693  0.585  1.0
  Pr  Pr4  1  0.750  0.193  0.915  1.0
  Pr  Pr5  1  0.250  0.500  0.807  1.0
  Pr  Pr6  1  0.250  1.000  0.692  1.0
  Pr  Pr7  1  0.250  0.807  0.085  1.0
  Ga  Ga8  1  0.750  0.221  0.594  1.0
  Ga  Ga9  1  0.250  0.779  0.405  1.0
  Ga  Ga10  1  0.750  0.720  0.905  1.0
  Ga  Ga11  1  0.250  0.280  0.095  1.0
[/CIF]
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