The material described by ErTiFe8Co3 crystallizes in the orthorhombic Imm2 space group. Er(1) is bonded in a 20-coordinate geometry to one Ti(1), two equivalent Fe(1), two equivalent Fe(2), four equivalent Fe(3), eight equivalent Fe(4), one Co(1), and two equivalent Co(2) atoms. Ti(1) is bonded in a 1-coordinate geometry to one Er(1), two equivalent Fe(2), two equivalent Fe(3), four equivalent Fe(4), one Co(1), and four equivalent Co(2) atoms. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent Er(1), two equivalent Fe(3), four equivalent Fe(4), two equivalent Co(1), and two equivalent Co(2) atoms to form distorted FeEr2Fe6Co4 cuboctahedra that share corners with four equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, corners with six equivalent Fe(2)Er2Ti2Fe6Co2 cuboctahedra, corners with eight equivalent Fe(4)Er2TiFe6Co3 cuboctahedra,  an edgeedge with one Fe(2)Er2Ti2Fe6Co2 cuboctahedra, edges with two equivalent Fe(1)Er2Fe6Co4 cuboctahedra, edges with four equivalent Fe(4)Er2TiFe6Co3 cuboctahedra,  a faceface with one Fe(2)Er2Ti2Fe6Co2 cuboctahedra, faces with six equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, faces with six equivalent Co(2)ErTi2Fe8Co cuboctahedra, and faces with eight equivalent Fe(4)Er2TiFe6Co3 cuboctahedra. In the second Fe site, Fe(2) is bonded to two equivalent Er(1), two equivalent Ti(1), two equivalent Fe(3), four equivalent Fe(4), and two equivalent Co(2) atoms to form distorted FeEr2Ti2Fe6Co2 cuboctahedra that share corners with four equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, corners with four equivalent Co(2)ErTi2Fe8Co cuboctahedra, corners with six equivalent Fe(1)Er2Fe6Co4 cuboctahedra, corners with eight equivalent Fe(4)Er2TiFe6Co3 cuboctahedra,  an edgeedge with one Fe(1)Er2Fe6Co4 cuboctahedra, edges with two equivalent Fe(2)Er2Ti2Fe6Co2 cuboctahedra, edges with four equivalent Fe(4)Er2TiFe6Co3 cuboctahedra,  a faceface with one Fe(1)Er2Fe6Co4 cuboctahedra, faces with six equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, faces with six equivalent Co(2)ErTi2Fe8Co cuboctahedra, and faces with eight equivalent Fe(4)Er2TiFe6Co3 cuboctahedra. In the third Fe site, Fe(3) is bonded to two equivalent Er(1), one Ti(1), one Fe(1), one Fe(2), four equivalent Fe(4), one Co(1), and two equivalent Co(2) atoms to form distorted FeEr2TiFe6Co3 cuboctahedra that share corners with two equivalent Fe(1)Er2Fe6Co4 cuboctahedra, corners with two equivalent Fe(2)Er2Ti2Fe6Co2 cuboctahedra, corners with four equivalent Co(2)ErTi2Fe8Co cuboctahedra, corners with six equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, corners with eight equivalent Fe(4)Er2TiFe6Co3 cuboctahedra, edges with two equivalent Co(2)ErTi2Fe8Co cuboctahedra, edges with three equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, edges with four equivalent Fe(4)Er2TiFe6Co3 cuboctahedra,  a faceface with one Fe(3)Er2TiFe6Co3 cuboctahedra, faces with three equivalent Fe(1)Er2Fe6Co4 cuboctahedra, faces with three equivalent Fe(2)Er2Ti2Fe6Co2 cuboctahedra, faces with four equivalent Co(2)ErTi2Fe8Co cuboctahedra, and faces with eight equivalent Fe(4)Er2TiFe6Co3 cuboctahedra. In the fourth Fe site, Fe(4) is bonded to two equivalent Er(1), one Ti(1), one Fe(1), one Fe(2), two equivalent Fe(3), two equivalent Fe(4), one Co(1), and two equivalent Co(2) atoms to form distorted FeEr2TiFe6Co3 cuboctahedra that share corners with two equivalent Fe(1)Er2Fe6Co4 cuboctahedra, corners with two equivalent Fe(2)Er2Ti2Fe6Co2 cuboctahedra, corners with three equivalent Co(2)ErTi2Fe8Co cuboctahedra, corners with four equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, corners with ten equivalent Fe(4)Er2TiFe6Co3 cuboctahedra,  an edgeedge with one Fe(1)Er2Fe6Co4 cuboctahedra,  an edgeedge with one Fe(2)Er2Ti2Fe6Co2 cuboctahedra, edges with two equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, edges with two equivalent Co(2)ErTi2Fe8Co cuboctahedra, edges with four equivalent Fe(4)Er2TiFe6Co3 cuboctahedra, faces with two equivalent Fe(1)Er2Fe6Co4 cuboctahedra, faces with two equivalent Fe(2)Er2Ti2Fe6Co2 cuboctahedra, faces with four equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, faces with four equivalent Co(2)ErTi2Fe8Co cuboctahedra, and faces with six equivalent Fe(4)Er2TiFe6Co3 cuboctahedra. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 1-coordinate geometry to one Er(1), one Ti(1), two equivalent Fe(1), two equivalent Fe(3), and four equivalent Fe(4) atoms. In the second Co site, Co(2) is bonded to one Er(1), two equivalent Ti(1), one Fe(1), one Fe(2), two equivalent Fe(3), four equivalent Fe(4), and one Co(2) atom to form distorted CoErTi2Fe8Co cuboctahedra that share corners with two equivalent Fe(2)Er2Ti2Fe6Co2 cuboctahedra, corners with four equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, corners with six equivalent Fe(4)Er2TiFe6Co3 cuboctahedra, corners with seven equivalent Co(2)ErTi2Fe8Co cuboctahedra, edges with two equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, edges with two equivalent Co(2)ErTi2Fe8Co cuboctahedra, edges with four equivalent Fe(4)Er2TiFe6Co3 cuboctahedra,  a faceface with one Co(2)ErTi2Fe8Co cuboctahedra, faces with three equivalent Fe(1)Er2Fe6Co4 cuboctahedra, faces with three equivalent Fe(2)Er2Ti2Fe6Co2 cuboctahedra, faces with four equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, and faces with eight equivalent Fe(4)Er2TiFe6Co3 cuboctahedra. is represented by the CIF card [CIF]
data_ErTiFe8Co3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.731
_cell_length_b   6.402
_cell_length_c   6.402
_cell_angle_alpha   97.923
_cell_angle_beta   111.683
_cell_angle_gamma   68.317
_symmetry_Int_Tables_number   1
_cell_volume   167.435
_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  0.005  0.995  0.005  1.0
  Ti  Ti1  1  0.626  0.374  0.626  1.0
  Fe  Fe2  1  0.730  0.770  0.230  1.0
  Fe  Fe3  1  0.279  0.221  0.779  1.0
  Fe  Fe4  1  0.500  0.784  0.783  1.0
  Fe  Fe5  1  0.500  0.217  0.216  1.0
  Fe  Fe6  1  0.501  0.997  0.499  1.0
  Fe  Fe7  1  0.001  0.997  0.499  1.0
  Fe  Fe8  1  0.501  0.501  0.003  1.0
  Fe  Fe9  1  0.001  0.501  0.003  1.0
  Co  Co10  1  0.351  0.649  0.351  1.0
  Co  Co11  1  0.002  0.356  0.360  1.0
  Co  Co12  1  0.002  0.640  0.644  1.0
[/CIF]
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The material described by ErTiFe8Co3 crystallizes in the orthorhombic Imm2 space group. Er(1) is bonded in a 20-coordinate geometry to one Ti(1), two equivalent Fe(1), two equivalent Fe(2), four equivalent Fe(3), eight equivalent Fe(4), one Co(1), and two equivalent Co(2) atoms. Ti(1) is bonded in a 1-coordinate geometry to one Er(1), two equivalent Fe(2), two equivalent Fe(3), four equivalent Fe(4), one Co(1), and four equivalent Co(2) atoms. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent Er(1), two equivalent Fe(3), four equivalent Fe(4), two equivalent Co(1), and two equivalent Co(2) atoms to form distorted FeEr2Fe6Co4 cuboctahedra that share corners with four equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, corners with six equivalent Fe(2)Er2Ti2Fe6Co2 cuboctahedra, corners with eight equivalent Fe(4)Er2TiFe6Co3 cuboctahedra,  an edgeedge with one Fe(2)Er2Ti2Fe6Co2 cuboctahedra, edges with two equivalent Fe(1)Er2Fe6Co4 cuboctahedra, edges with four equivalent Fe(4)Er2TiFe6Co3 cuboctahedra,  a faceface with one Fe(2)Er2Ti2Fe6Co2 cuboctahedra, faces with six equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, faces with six equivalent Co(2)ErTi2Fe8Co cuboctahedra, and faces with eight equivalent Fe(4)Er2TiFe6Co3 cuboctahedra. In the second Fe site, Fe(2) is bonded to two equivalent Er(1), two equivalent Ti(1), two equivalent Fe(3), four equivalent Fe(4), and two equivalent Co(2) atoms to form distorted FeEr2Ti2Fe6Co2 cuboctahedra that share corners with four equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, corners with four equivalent Co(2)ErTi2Fe8Co cuboctahedra, corners with six equivalent Fe(1)Er2Fe6Co4 cuboctahedra, corners with eight equivalent Fe(4)Er2TiFe6Co3 cuboctahedra,  an edgeedge with one Fe(1)Er2Fe6Co4 cuboctahedra, edges with two equivalent Fe(2)Er2Ti2Fe6Co2 cuboctahedra, edges with four equivalent Fe(4)Er2TiFe6Co3 cuboctahedra,  a faceface with one Fe(1)Er2Fe6Co4 cuboctahedra, faces with six equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, faces with six equivalent Co(2)ErTi2Fe8Co cuboctahedra, and faces with eight equivalent Fe(4)Er2TiFe6Co3 cuboctahedra. In the third Fe site, Fe(3) is bonded to two equivalent Er(1), one Ti(1), one Fe(1), one Fe(2), four equivalent Fe(4), one Co(1), and two equivalent Co(2) atoms to form distorted FeEr2TiFe6Co3 cuboctahedra that share corners with two equivalent Fe(1)Er2Fe6Co4 cuboctahedra, corners with two equivalent Fe(2)Er2Ti2Fe6Co2 cuboctahedra, corners with four equivalent Co(2)ErTi2Fe8Co cuboctahedra, corners with six equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, corners with eight equivalent Fe(4)Er2TiFe6Co3 cuboctahedra, edges with two equivalent Co(2)ErTi2Fe8Co cuboctahedra, edges with three equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, edges with four equivalent Fe(4)Er2TiFe6Co3 cuboctahedra,  a faceface with one Fe(3)Er2TiFe6Co3 cuboctahedra, faces with three equivalent Fe(1)Er2Fe6Co4 cuboctahedra, faces with three equivalent Fe(2)Er2Ti2Fe6Co2 cuboctahedra, faces with four equivalent Co(2)ErTi2Fe8Co cuboctahedra, and faces with eight equivalent Fe(4)Er2TiFe6Co3 cuboctahedra. In the fourth Fe site, Fe(4) is bonded to two equivalent Er(1), one Ti(1), one Fe(1), one Fe(2), two equivalent Fe(3), two equivalent Fe(4), one Co(1), and two equivalent Co(2) atoms to form distorted FeEr2TiFe6Co3 cuboctahedra that share corners with two equivalent Fe(1)Er2Fe6Co4 cuboctahedra, corners with two equivalent Fe(2)Er2Ti2Fe6Co2 cuboctahedra, corners with three equivalent Co(2)ErTi2Fe8Co cuboctahedra, corners with four equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, corners with ten equivalent Fe(4)Er2TiFe6Co3 cuboctahedra,  an edgeedge with one Fe(1)Er2Fe6Co4 cuboctahedra,  an edgeedge with one Fe(2)Er2Ti2Fe6Co2 cuboctahedra, edges with two equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, edges with two equivalent Co(2)ErTi2Fe8Co cuboctahedra, edges with four equivalent Fe(4)Er2TiFe6Co3 cuboctahedra, faces with two equivalent Fe(1)Er2Fe6Co4 cuboctahedra, faces with two equivalent Fe(2)Er2Ti2Fe6Co2 cuboctahedra, faces with four equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, faces with four equivalent Co(2)ErTi2Fe8Co cuboctahedra, and faces with six equivalent Fe(4)Er2TiFe6Co3 cuboctahedra. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 1-coordinate geometry to one Er(1), one Ti(1), two equivalent Fe(1), two equivalent Fe(3), and four equivalent Fe(4) atoms. In the second Co site, Co(2) is bonded to one Er(1), two equivalent Ti(1), one Fe(1), one Fe(2), two equivalent Fe(3), four equivalent Fe(4), and one Co(2) atom to form distorted CoErTi2Fe8Co cuboctahedra that share corners with two equivalent Fe(2)Er2Ti2Fe6Co2 cuboctahedra, corners with four equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, corners with six equivalent Fe(4)Er2TiFe6Co3 cuboctahedra, corners with seven equivalent Co(2)ErTi2Fe8Co cuboctahedra, edges with two equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, edges with two equivalent Co(2)ErTi2Fe8Co cuboctahedra, edges with four equivalent Fe(4)Er2TiFe6Co3 cuboctahedra,  a faceface with one Co(2)ErTi2Fe8Co cuboctahedra, faces with three equivalent Fe(1)Er2Fe6Co4 cuboctahedra, faces with three equivalent Fe(2)Er2Ti2Fe6Co2 cuboctahedra, faces with four equivalent Fe(3)Er2TiFe6Co3 cuboctahedra, and faces with eight equivalent Fe(4)Er2TiFe6Co3 cuboctahedra. is represented by the CIF card [CIF]
data_ErTiFe8Co3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.731
_cell_length_b   6.402
_cell_length_c   6.402
_cell_angle_alpha   97.923
_cell_angle_beta   111.683
_cell_angle_gamma   68.317
_symmetry_Int_Tables_number   1
_cell_volume   167.435
_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  0.005  0.995  0.005  1.0
  Ti  Ti1  1  0.626  0.374  0.626  1.0
  Fe  Fe2  1  0.730  0.770  0.230  1.0
  Fe  Fe3  1  0.279  0.221  0.779  1.0
  Fe  Fe4  1  0.500  0.784  0.783  1.0
  Fe  Fe5  1  0.500  0.217  0.216  1.0
  Fe  Fe6  1  0.501  0.997  0.499  1.0
  Fe  Fe7  1  0.001  0.997  0.499  1.0
  Fe  Fe8  1  0.501  0.501  0.003  1.0
  Fe  Fe9  1  0.001  0.501  0.003  1.0
  Co  Co10  1  0.351  0.649  0.351  1.0
  Co  Co11  1  0.002  0.356  0.360  1.0
  Co  Co12  1  0.002  0.640  0.644  1.0
[/CIF]
.