The structure described by Dy5Co2Bi crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to four equivalent Co(1) and two equivalent Bi(1) atoms to form distorted DyCo4Bi2 octahedra that share corners with six equivalent Dy(1)Co4Bi2 octahedra, corners with sixteen equivalent Dy(2)Co3Bi2 square pyramids, and faces with eight equivalent Dy(2)Co3Bi2 square pyramids. The corner-sharing octahedral tilt angles range from 0-49°. In the second Dy site, Dy(2) is bonded to three equivalent Co(1) and two equivalent Bi(1) atoms to form distorted DyCo3Bi2 square pyramids that share corners with four equivalent Dy(1)Co4Bi2 octahedra, corners with twelve equivalent Dy(2)Co3Bi2 square pyramids, edges with seven equivalent Dy(2)Co3Bi2 square pyramids, faces with two equivalent Dy(1)Co4Bi2 octahedra, and  a faceface with one Dy(2)Co3Bi2 square pyramid. The corner-sharing octahedral tilt angles range from 40-60°. Co(1) is bonded in a 8-coordinate geometry to two equivalent Dy(1) and six equivalent Dy(2) atoms. Bi(1) is bonded in a distorted q6 geometry to two equivalent Dy(1) and eight equivalent Dy(2) atoms. is represented by the CIF card [CIF]
data_Dy5Co2Bi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.632
_cell_length_b   8.632
_cell_length_c   8.632
_cell_angle_alpha   127.337
_cell_angle_beta   127.337
_cell_angle_gamma   77.701
_symmetry_Int_Tables_number   1
_cell_volume   394.195
_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
  Dy  Dy0  1  0.000  0.000  0.000  1.0
  Dy  Dy1  1  0.500  0.500  0.000  1.0
  Dy  Dy2  1  0.786  0.286  0.816  1.0
  Dy  Dy3  1  0.214  0.714  0.184  1.0
  Dy  Dy4  1  0.471  0.971  0.184  1.0
  Dy  Dy5  1  0.286  0.471  0.500  1.0
  Dy  Dy6  1  0.029  0.214  0.500  1.0
  Dy  Dy7  1  0.529  0.029  0.816  1.0
  Dy  Dy8  1  0.714  0.529  0.500  1.0
  Dy  Dy9  1  0.971  0.786  0.500  1.0
  Co  Co10  1  0.135  0.635  0.770  1.0
  Co  Co11  1  0.865  0.365  0.230  1.0
  Co  Co12  1  0.635  0.865  0.500  1.0
  Co  Co13  1  0.365  0.135  0.500  1.0
  Bi  Bi14  1  0.250  0.250  0.000  1.0
  Bi  Bi15  1  0.750  0.750  0.000  1.0
[/CIF]
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The structure described by Dy5Co2Bi crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to four equivalent Co(1) and two equivalent Bi(1) atoms to form distorted DyCo4Bi2 octahedra that share corners with six equivalent Dy(1)Co4Bi2 octahedra, corners with sixteen equivalent Dy(2)Co3Bi2 square pyramids, and faces with eight equivalent Dy(2)Co3Bi2 square pyramids. The corner-sharing octahedral tilt angles range from 0-49°. In the second Dy site, Dy(2) is bonded to three equivalent Co(1) and two equivalent Bi(1) atoms to form distorted DyCo3Bi2 square pyramids that share corners with four equivalent Dy(1)Co4Bi2 octahedra, corners with twelve equivalent Dy(2)Co3Bi2 square pyramids, edges with seven equivalent Dy(2)Co3Bi2 square pyramids, faces with two equivalent Dy(1)Co4Bi2 octahedra, and  a faceface with one Dy(2)Co3Bi2 square pyramid. The corner-sharing octahedral tilt angles range from 40-60°. Co(1) is bonded in a 8-coordinate geometry to two equivalent Dy(1) and six equivalent Dy(2) atoms. Bi(1) is bonded in a distorted q6 geometry to two equivalent Dy(1) and eight equivalent Dy(2) atoms. is represented by the CIF card [CIF]
data_Dy5Co2Bi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.632
_cell_length_b   8.632
_cell_length_c   8.632
_cell_angle_alpha   127.337
_cell_angle_beta   127.337
_cell_angle_gamma   77.701
_symmetry_Int_Tables_number   1
_cell_volume   394.195
_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
  Dy  Dy0  1  0.000  0.000  0.000  1.0
  Dy  Dy1  1  0.500  0.500  0.000  1.0
  Dy  Dy2  1  0.786  0.286  0.816  1.0
  Dy  Dy3  1  0.214  0.714  0.184  1.0
  Dy  Dy4  1  0.471  0.971  0.184  1.0
  Dy  Dy5  1  0.286  0.471  0.500  1.0
  Dy  Dy6  1  0.029  0.214  0.500  1.0
  Dy  Dy7  1  0.529  0.029  0.816  1.0
  Dy  Dy8  1  0.714  0.529  0.500  1.0
  Dy  Dy9  1  0.971  0.786  0.500  1.0
  Co  Co10  1  0.135  0.635  0.770  1.0
  Co  Co11  1  0.865  0.365  0.230  1.0
  Co  Co12  1  0.635  0.865  0.500  1.0
  Co  Co13  1  0.365  0.135  0.500  1.0
  Bi  Bi14  1  0.250  0.250  0.000  1.0
  Bi  Bi15  1  0.750  0.750  0.000  1.0
[/CIF]
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