The material structure described by Pr5Co19B6 crystallizes in the hexagonal P6/mmm space group. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 18-coordinate geometry to twelve equivalent Co(1) and six equivalent B(1) atoms. In the second Pr site, Pr(2) is bonded in a 6-coordinate geometry to one Pr(3) and six equivalent Co(2) atoms. In the third Pr site, Pr(3) is bonded in a 20-coordinate geometry to one Pr(2), one Pr(3), six equivalent Co(3), six equivalent Co(4), and six equivalent B(2) atoms. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded in a distorted L-shaped geometry to two equivalent Pr(1), two equivalent Co(2), and two equivalent B(1) atoms. In the second Co site, Co(2) is bonded in a 9-coordinate geometry to three equivalent Pr(2), three equivalent Co(1), and three equivalent Co(3) atoms. In the third Co site, Co(3) is bonded in a distorted L-shaped geometry to two equivalent Pr(3), two equivalent Co(2), and two equivalent B(2) atoms. In the fourth Co site, Co(4) is bonded in a distorted square co-planar geometry to four equivalent Pr(3) and four equivalent B(2) atoms. There are two inequivalent B sites. In the first B site, B(1) is bonded in a 6-coordinate geometry to three equivalent Pr(1) and six equivalent Co(1) atoms. In the second B site, B(2) is bonded in a 6-coordinate geometry to three equivalent Pr(3), three equivalent Co(3), and three equivalent Co(4) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr5Co19B6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.139
_cell_length_b   5.139
_cell_length_c   16.570
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   378.941
_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  0.500  1.0
  Pr  Pr1  1  0.000  0.000  0.295  1.0
  Pr  Pr2  1  0.000  0.000  0.705  1.0
  Pr  Pr3  1  0.000  0.000  0.094  1.0
  Pr  Pr4  1  0.000  0.000  0.906  1.0
  Co  Co5  1  0.500  0.000  0.413  1.0
  Co  Co6  1  0.500  0.500  0.413  1.0
  Co  Co7  1  0.000  0.500  0.413  1.0
  Co  Co8  1  0.500  0.000  0.587  1.0
  Co  Co9  1  0.500  0.500  0.587  1.0
  Co  Co10  1  0.000  0.500  0.587  1.0
  Co  Co11  1  0.333  0.667  0.294  1.0
  Co  Co12  1  0.667  0.333  0.294  1.0
  Co  Co13  1  0.667  0.333  0.706  1.0
  Co  Co14  1  0.333  0.667  0.706  1.0
  Co  Co15  1  0.500  0.000  0.174  1.0
  Co  Co16  1  0.500  0.500  0.174  1.0
  Co  Co17  1  0.000  0.500  0.174  1.0
  Co  Co18  1  0.500  0.000  0.826  1.0
  Co  Co19  1  0.500  0.500  0.826  1.0
  Co  Co20  1  0.000  0.500  0.826  1.0
  Co  Co21  1  0.500  0.000  0.000  1.0
  Co  Co22  1  0.500  0.500  0.000  1.0
  Co  Co23  1  0.000  0.500  0.000  1.0
  B  B24  1  0.333  0.667  0.500  1.0
  B  B25  1  0.667  0.333  0.500  1.0
  B  B26  1  0.333  0.667  0.088  1.0
  B  B27  1  0.667  0.333  0.088  1.0
  B  B28  1  0.667  0.333  0.912  1.0
  B  B29  1  0.333  0.667  0.912  1.0
[/CIF]
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The material structure described by Pr5Co19B6 crystallizes in the hexagonal P6/mmm space group. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 18-coordinate geometry to twelve equivalent Co(1) and six equivalent B(1) atoms. In the second Pr site, Pr(2) is bonded in a 6-coordinate geometry to one Pr(3) and six equivalent Co(2) atoms. In the third Pr site, Pr(3) is bonded in a 20-coordinate geometry to one Pr(2), one Pr(3), six equivalent Co(3), six equivalent Co(4), and six equivalent B(2) atoms. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded in a distorted L-shaped geometry to two equivalent Pr(1), two equivalent Co(2), and two equivalent B(1) atoms. In the second Co site, Co(2) is bonded in a 9-coordinate geometry to three equivalent Pr(2), three equivalent Co(1), and three equivalent Co(3) atoms. In the third Co site, Co(3) is bonded in a distorted L-shaped geometry to two equivalent Pr(3), two equivalent Co(2), and two equivalent B(2) atoms. In the fourth Co site, Co(4) is bonded in a distorted square co-planar geometry to four equivalent Pr(3) and four equivalent B(2) atoms. There are two inequivalent B sites. In the first B site, B(1) is bonded in a 6-coordinate geometry to three equivalent Pr(1) and six equivalent Co(1) atoms. In the second B site, B(2) is bonded in a 6-coordinate geometry to three equivalent Pr(3), three equivalent Co(3), and three equivalent Co(4) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr5Co19B6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.139
_cell_length_b   5.139
_cell_length_c   16.570
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   378.941
_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  0.500  1.0
  Pr  Pr1  1  0.000  0.000  0.295  1.0
  Pr  Pr2  1  0.000  0.000  0.705  1.0
  Pr  Pr3  1  0.000  0.000  0.094  1.0
  Pr  Pr4  1  0.000  0.000  0.906  1.0
  Co  Co5  1  0.500  0.000  0.413  1.0
  Co  Co6  1  0.500  0.500  0.413  1.0
  Co  Co7  1  0.000  0.500  0.413  1.0
  Co  Co8  1  0.500  0.000  0.587  1.0
  Co  Co9  1  0.500  0.500  0.587  1.0
  Co  Co10  1  0.000  0.500  0.587  1.0
  Co  Co11  1  0.333  0.667  0.294  1.0
  Co  Co12  1  0.667  0.333  0.294  1.0
  Co  Co13  1  0.667  0.333  0.706  1.0
  Co  Co14  1  0.333  0.667  0.706  1.0
  Co  Co15  1  0.500  0.000  0.174  1.0
  Co  Co16  1  0.500  0.500  0.174  1.0
  Co  Co17  1  0.000  0.500  0.174  1.0
  Co  Co18  1  0.500  0.000  0.826  1.0
  Co  Co19  1  0.500  0.500  0.826  1.0
  Co  Co20  1  0.000  0.500  0.826  1.0
  Co  Co21  1  0.500  0.000  0.000  1.0
  Co  Co22  1  0.500  0.500  0.000  1.0
  Co  Co23  1  0.000  0.500  0.000  1.0
  B  B24  1  0.333  0.667  0.500  1.0
  B  B25  1  0.667  0.333  0.500  1.0
  B  B26  1  0.333  0.667  0.088  1.0
  B  B27  1  0.667  0.333  0.088  1.0
  B  B28  1  0.667  0.333  0.912  1.0
  B  B29  1  0.333  0.667  0.912  1.0
[/CIF]
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