The crystal structure described by ErMn2(Fe2Sn3)2 crystallizes in the orthorhombic Cmm2 space group. Er(1) is bonded to two equivalent Fe(3), four equivalent Fe(2), one Sn(1), one Sn(2), and six equivalent Sn(4) atoms to form distorted ErFe6Sn8 hexagonal bipyramids that share faces with four equivalent Fe(3)Er2Fe4Sn6 cuboctahedra, faces with eight equivalent Fe(2)Er2Fe4Sn6 cuboctahedra, and faces with six equivalent Er(1)Fe6Sn8 hexagonal bipyramids. Mn(1) is bonded in a 8-coordinate geometry to two equivalent Fe(1), two equivalent Sn(1), two equivalent Sn(3), and two equivalent Sn(4) atoms. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 10-coordinate geometry to four equivalent Mn(1), two equivalent Sn(1), two equivalent Sn(3), and two equivalent Sn(4) atoms. In the second Fe site, Fe(2) is bonded to two equivalent Er(1), two equivalent Fe(2), two equivalent Fe(3), two equivalent Sn(2), two equivalent Sn(3), and two equivalent Sn(4) atoms to form distorted FeEr2Fe4Sn6 cuboctahedra that share corners with four equivalent Fe(2)Er2Fe4Sn6 cuboctahedra, edges with two equivalent Fe(2)Er2Fe4Sn6 cuboctahedra, faces with four equivalent Fe(2)Er2Fe4Sn6 cuboctahedra, faces with four equivalent Fe(3)Er2Fe4Sn6 cuboctahedra, and faces with four equivalent Er(1)Fe6Sn8 hexagonal bipyramids. In the third Fe site, Fe(3) is bonded to two equivalent Er(1), four equivalent Fe(2), two equivalent Sn(2), two equivalent Sn(3), and two equivalent Sn(4) atoms to form distorted FeEr2Fe4Sn6 cuboctahedra that share corners with four equivalent Fe(3)Er2Fe4Sn6 cuboctahedra, edges with two equivalent Fe(3)Er2Fe4Sn6 cuboctahedra, faces with eight equivalent Fe(2)Er2Fe4Sn6 cuboctahedra, and faces with four equivalent Er(1)Fe6Sn8 hexagonal bipyramids. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 8-coordinate geometry to one Er(1), four equivalent Mn(1), two equivalent Fe(1), and one Sn(2) atom. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to one Er(1), two equivalent Fe(3), four equivalent Fe(2), and one Sn(1) atom. In the third Sn site, Sn(3) is bonded in a 6-coordinate geometry to two equivalent Mn(1), one Fe(1), one Fe(3), and two equivalent Fe(2) atoms. In the fourth Sn site, Sn(4) is bonded in a 9-coordinate geometry to three equivalent Er(1), two equivalent Mn(1), one Fe(1), one Fe(3), and two equivalent Fe(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErMn2(Fe2Sn3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.425
_cell_length_b   5.430
_cell_length_c   9.008
_cell_angle_alpha   90.000
_cell_angle_beta   90.001
_cell_angle_gamma   60.282
_symmetry_Int_Tables_number   1
_cell_volume   230.428
_cell_formula_units_Z   1
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  1.000  1.000  0.001  1.0
  Mn  Mn1  1  0.500  0.000  0.246  1.0
  Mn  Mn2  1  1.000  0.500  0.246  1.0
  Fe  Fe3  1  0.500  0.500  0.246  1.0
  Fe  Fe4  1  0.500  1.000  0.753  1.0
  Fe  Fe5  1  1.000  0.500  0.753  1.0
  Fe  Fe6  1  0.500  0.500  0.753  1.0
  Sn  Sn7  1  1.000  0.000  0.337  1.0
  Sn  Sn8  1  1.000  1.000  0.663  1.0
  Sn  Sn9  1  0.666  0.666  0.501  1.0
  Sn  Sn10  1  0.334  0.334  0.501  1.0
  Sn  Sn11  1  0.666  0.666  1.000  1.0
  Sn  Sn12  1  0.334  0.334  1.000  1.0
[/CIF]
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The crystal structure described by ErMn2(Fe2Sn3)2 crystallizes in the orthorhombic Cmm2 space group. Er(1) is bonded to two equivalent Fe(3), four equivalent Fe(2), one Sn(1), one Sn(2), and six equivalent Sn(4) atoms to form distorted ErFe6Sn8 hexagonal bipyramids that share faces with four equivalent Fe(3)Er2Fe4Sn6 cuboctahedra, faces with eight equivalent Fe(2)Er2Fe4Sn6 cuboctahedra, and faces with six equivalent Er(1)Fe6Sn8 hexagonal bipyramids. Mn(1) is bonded in a 8-coordinate geometry to two equivalent Fe(1), two equivalent Sn(1), two equivalent Sn(3), and two equivalent Sn(4) atoms. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 10-coordinate geometry to four equivalent Mn(1), two equivalent Sn(1), two equivalent Sn(3), and two equivalent Sn(4) atoms. In the second Fe site, Fe(2) is bonded to two equivalent Er(1), two equivalent Fe(2), two equivalent Fe(3), two equivalent Sn(2), two equivalent Sn(3), and two equivalent Sn(4) atoms to form distorted FeEr2Fe4Sn6 cuboctahedra that share corners with four equivalent Fe(2)Er2Fe4Sn6 cuboctahedra, edges with two equivalent Fe(2)Er2Fe4Sn6 cuboctahedra, faces with four equivalent Fe(2)Er2Fe4Sn6 cuboctahedra, faces with four equivalent Fe(3)Er2Fe4Sn6 cuboctahedra, and faces with four equivalent Er(1)Fe6Sn8 hexagonal bipyramids. In the third Fe site, Fe(3) is bonded to two equivalent Er(1), four equivalent Fe(2), two equivalent Sn(2), two equivalent Sn(3), and two equivalent Sn(4) atoms to form distorted FeEr2Fe4Sn6 cuboctahedra that share corners with four equivalent Fe(3)Er2Fe4Sn6 cuboctahedra, edges with two equivalent Fe(3)Er2Fe4Sn6 cuboctahedra, faces with eight equivalent Fe(2)Er2Fe4Sn6 cuboctahedra, and faces with four equivalent Er(1)Fe6Sn8 hexagonal bipyramids. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 8-coordinate geometry to one Er(1), four equivalent Mn(1), two equivalent Fe(1), and one Sn(2) atom. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to one Er(1), two equivalent Fe(3), four equivalent Fe(2), and one Sn(1) atom. In the third Sn site, Sn(3) is bonded in a 6-coordinate geometry to two equivalent Mn(1), one Fe(1), one Fe(3), and two equivalent Fe(2) atoms. In the fourth Sn site, Sn(4) is bonded in a 9-coordinate geometry to three equivalent Er(1), two equivalent Mn(1), one Fe(1), one Fe(3), and two equivalent Fe(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErMn2(Fe2Sn3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.425
_cell_length_b   5.430
_cell_length_c   9.008
_cell_angle_alpha   90.000
_cell_angle_beta   90.001
_cell_angle_gamma   60.282
_symmetry_Int_Tables_number   1
_cell_volume   230.428
_cell_formula_units_Z   1
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  1.000  1.000  0.001  1.0
  Mn  Mn1  1  0.500  0.000  0.246  1.0
  Mn  Mn2  1  1.000  0.500  0.246  1.0
  Fe  Fe3  1  0.500  0.500  0.246  1.0
  Fe  Fe4  1  0.500  1.000  0.753  1.0
  Fe  Fe5  1  1.000  0.500  0.753  1.0
  Fe  Fe6  1  0.500  0.500  0.753  1.0
  Sn  Sn7  1  1.000  0.000  0.337  1.0
  Sn  Sn8  1  1.000  1.000  0.663  1.0
  Sn  Sn9  1  0.666  0.666  0.501  1.0
  Sn  Sn10  1  0.334  0.334  0.501  1.0
  Sn  Sn11  1  0.666  0.666  1.000  1.0
  Sn  Sn12  1  0.334  0.334  1.000  1.0
[/CIF]
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