The crystal structure described by PrNiGa2 crystallizes in the orthorhombic Cmmm space group. Pr(1) is bonded in a 14-coordinate geometry to four equivalent Ni(1), two equivalent Ga(2), two equivalent Ga(3), and six equivalent Ga(1) atoms. Ni(1) is bonded in a 10-coordinate geometry to four equivalent Pr(1), one Ni(1), one Ga(1), two equivalent Ga(2), and two equivalent Ga(3) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to six equivalent Pr(1), one Ni(1), and two equivalent Ga(1) atoms. In the second Ga site, Ga(2) is bonded in a 4-coordinate geometry to four equivalent Pr(1) and four equivalent Ni(1) atoms. In the third Ga site, Ga(3) is bonded in a 4-coordinate geometry to four equivalent Pr(1) and four equivalent Ni(1) atoms. is represented by the CIF card [CIF]
data_PrGa2Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.183
_cell_length_b   4.195
_cell_length_c   8.972
_cell_angle_alpha   103.521
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   153.076
_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  0.500  0.358  0.716  1.0
  Pr  Pr1  1  0.500  0.642  0.284  1.0
  Ga  Ga2  1  0.000  0.209  0.419  1.0
  Ga  Ga3  1  0.000  0.791  0.581  1.0
  Ga  Ga4  1  0.500  0.000  0.000  1.0
  Ga  Ga5  1  0.000  0.500  0.000  1.0
  Ni  Ni6  1  0.000  0.072  0.144  1.0
  Ni  Ni7  1  0.000  0.928  0.856  1.0
[/CIF]
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The crystal structure described by PrNiGa2 crystallizes in the orthorhombic Cmmm space group. Pr(1) is bonded in a 14-coordinate geometry to four equivalent Ni(1), two equivalent Ga(2), two equivalent Ga(3), and six equivalent Ga(1) atoms. Ni(1) is bonded in a 10-coordinate geometry to four equivalent Pr(1), one Ni(1), one Ga(1), two equivalent Ga(2), and two equivalent Ga(3) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to six equivalent Pr(1), one Ni(1), and two equivalent Ga(1) atoms. In the second Ga site, Ga(2) is bonded in a 4-coordinate geometry to four equivalent Pr(1) and four equivalent Ni(1) atoms. In the third Ga site, Ga(3) is bonded in a 4-coordinate geometry to four equivalent Pr(1) and four equivalent Ni(1) atoms. is represented by the CIF card [CIF]
data_PrGa2Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.183
_cell_length_b   4.195
_cell_length_c   8.972
_cell_angle_alpha   103.521
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   153.076
_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  0.500  0.358  0.716  1.0
  Pr  Pr1  1  0.500  0.642  0.284  1.0
  Ga  Ga2  1  0.000  0.209  0.419  1.0
  Ga  Ga3  1  0.000  0.791  0.581  1.0
  Ga  Ga4  1  0.500  0.000  0.000  1.0
  Ga  Ga5  1  0.000  0.500  0.000  1.0
  Ni  Ni6  1  0.000  0.072  0.144  1.0
  Ni  Ni7  1  0.000  0.928  0.856  1.0
[/CIF]
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