The structure described by Pr2Co14Al3 crystallizes in the trigonal R-3m space group. Pr(1) is bonded in a 19-coordinate geometry to one Co(3), six equivalent Co(1), nine equivalent Co(2), and three equivalent Al(1) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 12-coordinate geometry to two equivalent Pr(1), two equivalent Co(1), two equivalent Co(3), four equivalent Co(2), and two equivalent Al(1) atoms. In the second Co site, Co(2) is bonded to three equivalent Pr(1), one Co(3), two equivalent Co(2), four equivalent Co(1), and two equivalent Al(1) atoms to form a mixture of distorted corner, edge, and face-sharing CoPr3Al2Co7 cuboctahedra. In the third Co site, Co(3) is bonded in a 14-coordinate geometry to one Pr(1), one Co(3), three equivalent Co(2), six equivalent Co(1), and three equivalent Al(1) atoms. Al(1) is bonded in a 10-coordinate geometry to two equivalent Pr(1), two equivalent Co(3), four equivalent Co(1), and four equivalent Co(2) atoms. is represented by the CIF card [CIF]
data_Pr2Al3Co14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.385
_cell_length_b   6.385
_cell_length_c   6.385
_cell_angle_alpha   82.633
_cell_angle_beta   82.633
_cell_angle_gamma   82.633
_symmetry_Int_Tables_number   1
_cell_volume   254.417
_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  0.656  0.656  0.656  1.0
  Pr  Pr1  1  0.344  0.344  0.344  1.0
  Al  Al2  1  0.000  0.000  0.500  1.0
  Al  Al3  1  0.500  0.000  0.000  1.0
  Al  Al4  1  0.000  0.500  0.000  1.0
  Co  Co5  1  0.713  0.287  0.000  1.0
  Co  Co6  1  0.000  0.713  0.287  1.0
  Co  Co7  1  0.287  0.000  0.713  1.0
  Co  Co8  1  0.000  0.287  0.713  1.0
  Co  Co9  1  0.713  0.000  0.287  1.0
  Co  Co10  1  0.287  0.713  0.000  1.0
  Co  Co11  1  0.345  0.345  0.841  1.0
  Co  Co12  1  0.841  0.345  0.345  1.0
  Co  Co13  1  0.345  0.841  0.345  1.0
  Co  Co14  1  0.655  0.655  0.159  1.0
  Co  Co15  1  0.159  0.655  0.655  1.0
  Co  Co16  1  0.655  0.159  0.655  1.0
  Co  Co17  1  0.907  0.907  0.907  1.0
  Co  Co18  1  0.093  0.093  0.093  1.0
[/CIF]
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The structure described by Pr2Co14Al3 crystallizes in the trigonal R-3m space group. Pr(1) is bonded in a 19-coordinate geometry to one Co(3), six equivalent Co(1), nine equivalent Co(2), and three equivalent Al(1) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 12-coordinate geometry to two equivalent Pr(1), two equivalent Co(1), two equivalent Co(3), four equivalent Co(2), and two equivalent Al(1) atoms. In the second Co site, Co(2) is bonded to three equivalent Pr(1), one Co(3), two equivalent Co(2), four equivalent Co(1), and two equivalent Al(1) atoms to form a mixture of distorted corner, edge, and face-sharing CoPr3Al2Co7 cuboctahedra. In the third Co site, Co(3) is bonded in a 14-coordinate geometry to one Pr(1), one Co(3), three equivalent Co(2), six equivalent Co(1), and three equivalent Al(1) atoms. Al(1) is bonded in a 10-coordinate geometry to two equivalent Pr(1), two equivalent Co(3), four equivalent Co(1), and four equivalent Co(2) atoms. is represented by the CIF card [CIF]
data_Pr2Al3Co14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.385
_cell_length_b   6.385
_cell_length_c   6.385
_cell_angle_alpha   82.633
_cell_angle_beta   82.633
_cell_angle_gamma   82.633
_symmetry_Int_Tables_number   1
_cell_volume   254.417
_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  0.656  0.656  0.656  1.0
  Pr  Pr1  1  0.344  0.344  0.344  1.0
  Al  Al2  1  0.000  0.000  0.500  1.0
  Al  Al3  1  0.500  0.000  0.000  1.0
  Al  Al4  1  0.000  0.500  0.000  1.0
  Co  Co5  1  0.713  0.287  0.000  1.0
  Co  Co6  1  0.000  0.713  0.287  1.0
  Co  Co7  1  0.287  0.000  0.713  1.0
  Co  Co8  1  0.000  0.287  0.713  1.0
  Co  Co9  1  0.713  0.000  0.287  1.0
  Co  Co10  1  0.287  0.713  0.000  1.0
  Co  Co11  1  0.345  0.345  0.841  1.0
  Co  Co12  1  0.841  0.345  0.345  1.0
  Co  Co13  1  0.345  0.841  0.345  1.0
  Co  Co14  1  0.655  0.655  0.159  1.0
  Co  Co15  1  0.159  0.655  0.655  1.0
  Co  Co16  1  0.655  0.159  0.655  1.0
  Co  Co17  1  0.907  0.907  0.907  1.0
  Co  Co18  1  0.093  0.093  0.093  1.0
[/CIF]
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