The compound described by Er6Co2In crystallizes in the orthorhombic Immm space group. There are three inequivalent Er sites. In the first Er site, Er(1) is bonded in a 5-coordinate geometry to one Co(2), two equivalent Co(1), one In(1), and one In(2) atom. In the second Er site, Er(2) is bonded in a 4-coordinate geometry to one Co(1), two equivalent Co(2), and one In(1) atom. In the third Er site, Er(3) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one In(1), and one In(2) atom. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 9-coordinate geometry to two equivalent Er(2), two equivalent Er(3), four equivalent Er(1), and one Co(1) atom. In the second Co site, Co(2) is bonded in a 9-coordinate geometry to two equivalent Er(1), two equivalent Er(3), four equivalent Er(2), and one Co(2) atom. There are two inequivalent In sites. In the first In site, In(1) is bonded in a cuboctahedral geometry to four equivalent Er(1), four equivalent Er(2), and four equivalent Er(3) atoms. In the second In site, In(2) is bonded in a body-centered cubic geometry to four equivalent Er(1) and four equivalent Er(3) atoms. is represented by the CIF file [CIF]
data_Er6InCo2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.279
_cell_length_b   8.279
_cell_length_c   8.279
_cell_angle_alpha   111.338
_cell_angle_beta   109.937
_cell_angle_gamma   107.166
_symmetry_Int_Tables_number   1
_cell_volume   436.246
_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
  Er  Er0  1  0.187  0.290  0.476  1.0
  Er  Er1  1  0.813  0.710  0.524  1.0
  Er  Er2  1  0.187  0.710  0.897  1.0
  Er  Er3  1  0.813  0.290  0.103  1.0
  Er  Er4  1  0.315  0.616  0.300  1.0
  Er  Er5  1  0.685  0.384  0.700  1.0
  Er  Er6  1  0.315  0.015  0.700  1.0
  Er  Er7  1  0.685  0.985  0.300  1.0
  Er  Er8  1  0.443  0.230  0.214  1.0
  Er  Er9  1  0.557  0.770  0.786  1.0
  Er  Er10  1  0.016  0.230  0.786  1.0
  Er  Er11  1  0.984  0.770  0.214  1.0
  In  In12  1  0.500  0.500  1.000  1.0
  In  In13  1  1.000  1.000  1.000  1.0
  Co  Co14  1  0.111  0.611  0.500  1.0
  Co  Co15  1  0.889  0.389  0.500  1.0
  Co  Co16  1  0.382  0.000  0.382  1.0
  Co  Co17  1  0.618  1.000  0.618  1.0
[/CIF]
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The compound described by Er6Co2In crystallizes in the orthorhombic Immm space group. There are three inequivalent Er sites. In the first Er site, Er(1) is bonded in a 5-coordinate geometry to one Co(2), two equivalent Co(1), one In(1), and one In(2) atom. In the second Er site, Er(2) is bonded in a 4-coordinate geometry to one Co(1), two equivalent Co(2), and one In(1) atom. In the third Er site, Er(3) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one In(1), and one In(2) atom. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 9-coordinate geometry to two equivalent Er(2), two equivalent Er(3), four equivalent Er(1), and one Co(1) atom. In the second Co site, Co(2) is bonded in a 9-coordinate geometry to two equivalent Er(1), two equivalent Er(3), four equivalent Er(2), and one Co(2) atom. There are two inequivalent In sites. In the first In site, In(1) is bonded in a cuboctahedral geometry to four equivalent Er(1), four equivalent Er(2), and four equivalent Er(3) atoms. In the second In site, In(2) is bonded in a body-centered cubic geometry to four equivalent Er(1) and four equivalent Er(3) atoms. is represented by the CIF file [CIF]
data_Er6InCo2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.279
_cell_length_b   8.279
_cell_length_c   8.279
_cell_angle_alpha   111.338
_cell_angle_beta   109.937
_cell_angle_gamma   107.166
_symmetry_Int_Tables_number   1
_cell_volume   436.246
_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
  Er  Er0  1  0.187  0.290  0.476  1.0
  Er  Er1  1  0.813  0.710  0.524  1.0
  Er  Er2  1  0.187  0.710  0.897  1.0
  Er  Er3  1  0.813  0.290  0.103  1.0
  Er  Er4  1  0.315  0.616  0.300  1.0
  Er  Er5  1  0.685  0.384  0.700  1.0
  Er  Er6  1  0.315  0.015  0.700  1.0
  Er  Er7  1  0.685  0.985  0.300  1.0
  Er  Er8  1  0.443  0.230  0.214  1.0
  Er  Er9  1  0.557  0.770  0.786  1.0
  Er  Er10  1  0.016  0.230  0.786  1.0
  Er  Er11  1  0.984  0.770  0.214  1.0
  In  In12  1  0.500  0.500  1.000  1.0
  In  In13  1  1.000  1.000  1.000  1.0
  Co  Co14  1  0.111  0.611  0.500  1.0
  Co  Co15  1  0.889  0.389  0.500  1.0
  Co  Co16  1  0.382  0.000  0.382  1.0
  Co  Co17  1  0.618  1.000  0.618  1.0
[/CIF]
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