The material described by FeCoSn2 crystallizes in the monoclinic P2/m space group. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a distorted q6 geometry to two equivalent Fe(3), two equivalent Co(1), two equivalent Sn(3), and four equivalent Sn(2) atoms. In the second Fe site, Fe(2) is bonded in a distorted q6 geometry to two equivalent Co(1), two equivalent Co(2), two equivalent Sn(3), and four equivalent Sn(1) atoms. In the third Fe site, Fe(3) is bonded in a distorted q6 geometry to two equivalent Fe(1), two equivalent Co(1), two equivalent Sn(3), and four equivalent Sn(2) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 10-coordinate geometry to one Fe(1), one Fe(2), one Fe(3), one Co(2), two equivalent Sn(1), two equivalent Sn(2), and two equivalent Sn(3) atoms. In the second Co site, Co(2) is bonded in a 10-coordinate geometry to two equivalent Fe(2), two equivalent Co(1), two equivalent Sn(3), and four equivalent Sn(1) atoms. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 6-coordinate geometry to two equivalent Fe(2), two equivalent Co(1), and two equivalent Co(2) atoms. In the second Sn site, Sn(2) is bonded in a 6-coordinate geometry to two equivalent Fe(1), two equivalent Fe(3), and two equivalent Co(1) atoms. In the third Sn site, Sn(3) is bonded in a hexagonal planar geometry to one Fe(1), one Fe(2), one Fe(3), one Co(2), and two equivalent Co(1) atoms. is represented by the CIF file [CIF]
data_FeCoSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.334
_cell_length_b   5.168
_cell_length_c   9.391
_cell_angle_alpha   89.558
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   210.344
_cell_formula_units_Z   3
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
  Fe  Fe0  1  0.000  0.500  0.500  1.0
  Fe  Fe1  1  0.000  0.500  0.000  1.0
  Fe  Fe2  1  0.000  0.000  0.500  1.0
  Co  Co3  1  0.000  0.254  0.250  1.0
  Co  Co4  1  0.000  0.746  0.750  1.0
  Co  Co5  1  0.000  0.000  0.000  1.0
  Sn  Sn6  1  0.500  0.249  0.087  1.0
  Sn  Sn7  1  0.500  0.749  0.588  1.0
  Sn  Sn8  1  0.500  0.751  0.913  1.0
  Sn  Sn9  1  0.500  0.251  0.412  1.0
  Sn  Sn10  1  0.000  0.247  0.751  1.0
  Sn  Sn11  1  0.000  0.753  0.249  1.0
[/CIF]
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The material described by FeCoSn2 crystallizes in the monoclinic P2/m space group. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a distorted q6 geometry to two equivalent Fe(3), two equivalent Co(1), two equivalent Sn(3), and four equivalent Sn(2) atoms. In the second Fe site, Fe(2) is bonded in a distorted q6 geometry to two equivalent Co(1), two equivalent Co(2), two equivalent Sn(3), and four equivalent Sn(1) atoms. In the third Fe site, Fe(3) is bonded in a distorted q6 geometry to two equivalent Fe(1), two equivalent Co(1), two equivalent Sn(3), and four equivalent Sn(2) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 10-coordinate geometry to one Fe(1), one Fe(2), one Fe(3), one Co(2), two equivalent Sn(1), two equivalent Sn(2), and two equivalent Sn(3) atoms. In the second Co site, Co(2) is bonded in a 10-coordinate geometry to two equivalent Fe(2), two equivalent Co(1), two equivalent Sn(3), and four equivalent Sn(1) atoms. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 6-coordinate geometry to two equivalent Fe(2), two equivalent Co(1), and two equivalent Co(2) atoms. In the second Sn site, Sn(2) is bonded in a 6-coordinate geometry to two equivalent Fe(1), two equivalent Fe(3), and two equivalent Co(1) atoms. In the third Sn site, Sn(3) is bonded in a hexagonal planar geometry to one Fe(1), one Fe(2), one Fe(3), one Co(2), and two equivalent Co(1) atoms. is represented by the CIF file [CIF]
data_FeCoSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.334
_cell_length_b   5.168
_cell_length_c   9.391
_cell_angle_alpha   89.558
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   210.344
_cell_formula_units_Z   3
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
  Fe  Fe0  1  0.000  0.500  0.500  1.0
  Fe  Fe1  1  0.000  0.500  0.000  1.0
  Fe  Fe2  1  0.000  0.000  0.500  1.0
  Co  Co3  1  0.000  0.254  0.250  1.0
  Co  Co4  1  0.000  0.746  0.750  1.0
  Co  Co5  1  0.000  0.000  0.000  1.0
  Sn  Sn6  1  0.500  0.249  0.087  1.0
  Sn  Sn7  1  0.500  0.749  0.588  1.0
  Sn  Sn8  1  0.500  0.751  0.913  1.0
  Sn  Sn9  1  0.500  0.251  0.412  1.0
  Sn  Sn10  1  0.000  0.247  0.751  1.0
  Sn  Sn11  1  0.000  0.753  0.249  1.0
[/CIF]
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