The crystal structure described by ErCoSn2 crystallizes in the orthorhombic Cmcm space group. Er(1) is bonded in a 14-coordinate geometry to four equivalent Co(1), four equivalent Sn(1), and six equivalent Sn(2) atoms. Co(1) is bonded in a 9-coordinate geometry to four equivalent Er(1), one Sn(2), and four equivalent Sn(1) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 8-coordinate geometry to four equivalent Er(1) and four equivalent Co(1) atoms. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to six equivalent Er(1), one Co(1), and two equivalent Sn(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErCoSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.640
_cell_length_b   9.640
_cell_length_c   4.377
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   154.217
_symmetry_Int_Tables_number   1
_cell_volume   176.924
_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  0.118  0.882  0.750  1.0
  Er  Er1  1  0.882  0.118  0.250  1.0
  Co  Co2  1  0.677  0.323  0.250  1.0
  Co  Co3  1  0.323  0.677  0.750  1.0
  Sn  Sn4  1  0.749  0.251  0.750  1.0
  Sn  Sn5  1  0.251  0.749  0.250  1.0
  Sn  Sn6  1  0.548  0.452  0.250  1.0
  Sn  Sn7  1  0.452  0.548  0.750  1.0
[/CIF]
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The crystal structure described by ErCoSn2 crystallizes in the orthorhombic Cmcm space group. Er(1) is bonded in a 14-coordinate geometry to four equivalent Co(1), four equivalent Sn(1), and six equivalent Sn(2) atoms. Co(1) is bonded in a 9-coordinate geometry to four equivalent Er(1), one Sn(2), and four equivalent Sn(1) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 8-coordinate geometry to four equivalent Er(1) and four equivalent Co(1) atoms. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to six equivalent Er(1), one Co(1), and two equivalent Sn(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErCoSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.640
_cell_length_b   9.640
_cell_length_c   4.377
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   154.217
_symmetry_Int_Tables_number   1
_cell_volume   176.924
_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  0.118  0.882  0.750  1.0
  Er  Er1  1  0.882  0.118  0.250  1.0
  Co  Co2  1  0.677  0.323  0.250  1.0
  Co  Co3  1  0.323  0.677  0.750  1.0
  Sn  Sn4  1  0.749  0.251  0.750  1.0
  Sn  Sn5  1  0.251  0.749  0.250  1.0
  Sn  Sn6  1  0.548  0.452  0.250  1.0
  Sn  Sn7  1  0.452  0.548  0.750  1.0
[/CIF]
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