The material structure described by Er5CoSb2 crystallizes in the orthorhombic Pnma space group. There are four inequivalent Er sites. In the first Er site, Er(1) is bonded to one Co(1) and four equivalent Sb(1) atoms to form a mixture of distorted face, corner, and edge-sharing ErCoSb4 trigonal bipyramids. In the second Er site, Er(2) is bonded to one Co(1) and four equivalent Sb(1) atoms to form a mixture of distorted face, corner, and edge-sharing ErCoSb4 trigonal bipyramids. In the third Er site, Er(3) is bonded in a 5-coordinate geometry to one Co(1) and four equivalent Sb(1) atoms. In the fourth Er site, Er(4) is bonded in a 5-coordinate geometry to two equivalent Co(1) and three equivalent Sb(1) atoms. Co(1) is bonded to one Er(1), one Er(2), one Er(3), and four equivalent Er(4) atoms to form distorted edge-sharing CoEr7 pentagonal bipyramids. Sb(1) is bonded in a 9-coordinate geometry to two equivalent Er(1), two equivalent Er(2), two equivalent Er(3), and three equivalent Er(4) atoms. is represented by the CIF file [CIF]
data_Er5CoSb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.833
_cell_length_b   8.629
_cell_length_c   12.074
_cell_angle_alpha   90.001
_cell_angle_beta   89.993
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   816.186
_cell_formula_units_Z   4
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
  Er  Er0  1  0.156  0.750  0.202  1.0
  Er  Er1  1  0.656  0.250  0.298  1.0
  Er  Er2  1  0.844  0.250  0.798  1.0
  Er  Er3  1  0.344  0.750  0.702  1.0
  Er  Er4  1  0.450  0.750  0.998  1.0
  Er  Er5  1  0.950  0.250  0.502  1.0
  Er  Er6  1  0.550  0.250  0.002  1.0
  Er  Er7  1  0.050  0.750  0.498  1.0
  Er  Er8  1  0.624  0.750  0.309  1.0
  Er  Er9  1  0.123  0.250  0.191  1.0
  Er  Er10  1  0.377  0.250  0.691  1.0
  Er  Er11  1  0.877  0.750  0.809  1.0
  Er  Er12  1  0.825  0.965  0.065  1.0
  Er  Er13  1  0.324  0.036  0.435  1.0
  Er  Er14  1  0.175  0.464  0.935  1.0
  Er  Er15  1  0.676  0.535  0.565  1.0
  Er  Er16  1  0.175  0.036  0.935  1.0
  Er  Er17  1  0.676  0.965  0.565  1.0
  Er  Er18  1  0.825  0.535  0.065  1.0
  Er  Er19  1  0.324  0.464  0.435  1.0
  Co  Co20  1  0.436  0.750  0.491  1.0
  Co  Co21  1  0.936  0.250  0.009  1.0
  Co  Co22  1  0.564  0.250  0.509  1.0
  Co  Co23  1  0.064  0.750  0.991  1.0
  Sb  Sb24  1  0.933  0.992  0.327  1.0
  Sb  Sb25  1  0.433  0.008  0.173  1.0
  Sb  Sb26  1  0.067  0.492  0.673  1.0
  Sb  Sb27  1  0.567  0.508  0.827  1.0
  Sb  Sb28  1  0.067  0.008  0.673  1.0
  Sb  Sb29  1  0.567  0.992  0.827  1.0
  Sb  Sb30  1  0.933  0.508  0.327  1.0
  Sb  Sb31  1  0.433  0.492  0.173  1.0
[/CIF]
.
The material structure described by Er5CoSb2 crystallizes in the orthorhombic Pnma space group. There are four inequivalent Er sites. In the first Er site, Er(1) is bonded to one Co(1) and four equivalent Sb(1) atoms to form a mixture of distorted face, corner, and edge-sharing ErCoSb4 trigonal bipyramids. In the second Er site, Er(2) is bonded to one Co(1) and four equivalent Sb(1) atoms to form a mixture of distorted face, corner, and edge-sharing ErCoSb4 trigonal bipyramids. In the third Er site, Er(3) is bonded in a 5-coordinate geometry to one Co(1) and four equivalent Sb(1) atoms. In the fourth Er site, Er(4) is bonded in a 5-coordinate geometry to two equivalent Co(1) and three equivalent Sb(1) atoms. Co(1) is bonded to one Er(1), one Er(2), one Er(3), and four equivalent Er(4) atoms to form distorted edge-sharing CoEr7 pentagonal bipyramids. Sb(1) is bonded in a 9-coordinate geometry to two equivalent Er(1), two equivalent Er(2), two equivalent Er(3), and three equivalent Er(4) atoms. is represented by the CIF file [CIF]
data_Er5CoSb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.833
_cell_length_b   8.629
_cell_length_c   12.074
_cell_angle_alpha   90.001
_cell_angle_beta   89.993
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   816.186
_cell_formula_units_Z   4
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
  Er  Er0  1  0.156  0.750  0.202  1.0
  Er  Er1  1  0.656  0.250  0.298  1.0
  Er  Er2  1  0.844  0.250  0.798  1.0
  Er  Er3  1  0.344  0.750  0.702  1.0
  Er  Er4  1  0.450  0.750  0.998  1.0
  Er  Er5  1  0.950  0.250  0.502  1.0
  Er  Er6  1  0.550  0.250  0.002  1.0
  Er  Er7  1  0.050  0.750  0.498  1.0
  Er  Er8  1  0.624  0.750  0.309  1.0
  Er  Er9  1  0.123  0.250  0.191  1.0
  Er  Er10  1  0.377  0.250  0.691  1.0
  Er  Er11  1  0.877  0.750  0.809  1.0
  Er  Er12  1  0.825  0.965  0.065  1.0
  Er  Er13  1  0.324  0.036  0.435  1.0
  Er  Er14  1  0.175  0.464  0.935  1.0
  Er  Er15  1  0.676  0.535  0.565  1.0
  Er  Er16  1  0.175  0.036  0.935  1.0
  Er  Er17  1  0.676  0.965  0.565  1.0
  Er  Er18  1  0.825  0.535  0.065  1.0
  Er  Er19  1  0.324  0.464  0.435  1.0
  Co  Co20  1  0.436  0.750  0.491  1.0
  Co  Co21  1  0.936  0.250  0.009  1.0
  Co  Co22  1  0.564  0.250  0.509  1.0
  Co  Co23  1  0.064  0.750  0.991  1.0
  Sb  Sb24  1  0.933  0.992  0.327  1.0
  Sb  Sb25  1  0.433  0.008  0.173  1.0
  Sb  Sb26  1  0.067  0.492  0.673  1.0
  Sb  Sb27  1  0.567  0.508  0.827  1.0
  Sb  Sb28  1  0.067  0.008  0.673  1.0
  Sb  Sb29  1  0.567  0.992  0.827  1.0
  Sb  Sb30  1  0.933  0.508  0.327  1.0
  Sb  Sb31  1  0.433  0.492  0.173  1.0
[/CIF]
.