The crystal structure described by Pr2Ni2Ga crystallizes in the orthorhombic Immm space group. Pr(1) is bonded in a 10-coordinate geometry to six equivalent Ni(1) and four equivalent Ga(1) atoms. Ni(1) is bonded in a 10-coordinate geometry to six equivalent Pr(1), two equivalent Ni(1), and two equivalent Ga(1) atoms. Ga(1) is bonded to eight equivalent Pr(1) and four equivalent Ni(1) atoms to form a mixture of distorted face and edge-sharing GaPr8Ni4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr2GaNi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.525
_cell_length_b   5.525
_cell_length_c   5.525
_cell_angle_alpha   134.531
_cell_angle_beta   121.256
_cell_angle_gamma   77.282
_symmetry_Int_Tables_number   1
_cell_volume   99.899
_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  0.300  0.800  0.500  1.0
  Pr  Pr1  1  0.700  0.200  0.500  1.0
  Ga  Ga2  1  0.000  0.000  0.000  1.0
  Ni  Ni3  1  0.739  0.500  0.239  1.0
  Ni  Ni4  1  0.261  0.500  0.761  1.0
[/CIF]
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The crystal structure described by Pr2Ni2Ga crystallizes in the orthorhombic Immm space group. Pr(1) is bonded in a 10-coordinate geometry to six equivalent Ni(1) and four equivalent Ga(1) atoms. Ni(1) is bonded in a 10-coordinate geometry to six equivalent Pr(1), two equivalent Ni(1), and two equivalent Ga(1) atoms. Ga(1) is bonded to eight equivalent Pr(1) and four equivalent Ni(1) atoms to form a mixture of distorted face and edge-sharing GaPr8Ni4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr2GaNi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.525
_cell_length_b   5.525
_cell_length_c   5.525
_cell_angle_alpha   134.531
_cell_angle_beta   121.256
_cell_angle_gamma   77.282
_symmetry_Int_Tables_number   1
_cell_volume   99.899
_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  0.300  0.800  0.500  1.0
  Pr  Pr1  1  0.700  0.200  0.500  1.0
  Ga  Ga2  1  0.000  0.000  0.000  1.0
  Ni  Ni3  1  0.739  0.500  0.239  1.0
  Ni  Ni4  1  0.261  0.500  0.761  1.0
[/CIF]
.