The structure described by PrNi3Al2 crystallizes in the hexagonal P6/mmm space group. Pr(1) is bonded in a 18-coordinate geometry to twelve equivalent Ni(1) and six equivalent Al(1) atoms. Ni(1) is bonded to four equivalent Pr(1) and four equivalent Al(1) atoms to form a mixture of distorted face, corner, and edge-sharing NiPr4Al4 cuboctahedra. Al(1) is bonded in a 9-coordinate geometry to three equivalent Pr(1) and six equivalent Ni(1) atoms. is represented by the CIF file [CIF]
data_PrAl2Ni3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.322
_cell_length_b   5.322
_cell_length_c   3.762
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   92.267
_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  0.000  0.000  0.000  1.0
  Al  Al1  1  0.333  0.667  0.000  1.0
  Al  Al2  1  0.667  0.333  0.000  1.0
  Ni  Ni3  1  0.500  0.000  0.500  1.0
  Ni  Ni4  1  0.500  0.500  0.500  1.0
  Ni  Ni5  1  0.000  0.500  0.500  1.0
[/CIF]
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The structure described by PrNi3Al2 crystallizes in the hexagonal P6/mmm space group. Pr(1) is bonded in a 18-coordinate geometry to twelve equivalent Ni(1) and six equivalent Al(1) atoms. Ni(1) is bonded to four equivalent Pr(1) and four equivalent Al(1) atoms to form a mixture of distorted face, corner, and edge-sharing NiPr4Al4 cuboctahedra. Al(1) is bonded in a 9-coordinate geometry to three equivalent Pr(1) and six equivalent Ni(1) atoms. is represented by the CIF file [CIF]
data_PrAl2Ni3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.322
_cell_length_b   5.322
_cell_length_c   3.762
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   92.267
_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  0.000  0.000  0.000  1.0
  Al  Al1  1  0.333  0.667  0.000  1.0
  Al  Al2  1  0.667  0.333  0.000  1.0
  Ni  Ni3  1  0.500  0.000  0.500  1.0
  Ni  Ni4  1  0.500  0.500  0.500  1.0
  Ni  Ni5  1  0.000  0.500  0.500  1.0
[/CIF]
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