The material described by YCr5Fe7 crystallizes in the orthorhombic Imm2 space group. Y(1) is bonded in a 20-coordinate geometry to one Cr(2), one Cr(3), two equivalent Cr(1), two equivalent Cr(4), two equivalent Fe(2), four equivalent Fe(3), and eight equivalent Fe(1) atoms. There are four inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 14-coordinate geometry to one Y(1), one Cr(1), one Cr(4), two equivalent Cr(2), two equivalent Cr(3), one Fe(2), two equivalent Fe(3), and four equivalent Fe(1) atoms. In the second Cr site, Cr(2) is bonded in a 10-coordinate geometry to one Y(1), one Cr(3), four equivalent Cr(1), two equivalent Fe(2), two equivalent Fe(3), and four equivalent Fe(1) atoms. In the third Cr site, Cr(3) is bonded in a 14-coordinate geometry to one Y(1), one Cr(2), two equivalent Cr(4), four equivalent Cr(1), two equivalent Fe(3), and four equivalent Fe(1) atoms. In the fourth Cr site, Cr(4) is bonded in a 12-coordinate geometry to two equivalent Y(1), two equivalent Cr(1), two equivalent Cr(3), two equivalent Fe(3), and four equivalent Fe(1) atoms. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent Y(1), one Cr(2), one Cr(3), one Cr(4), two equivalent Cr(1), one Fe(2), two equivalent Fe(1), and two equivalent Fe(3) atoms to form distorted FeY2Cr5Fe5 cuboctahedra that share corners with two equivalent Fe(2)Y2Cr4Fe6 cuboctahedra, corners with four equivalent Fe(3)Y2Cr5Fe5 cuboctahedra, corners with ten equivalent Fe(1)Y2Cr5Fe5 cuboctahedra,  an edgeedge with one Fe(2)Y2Cr4Fe6 cuboctahedra, edges with two equivalent Fe(3)Y2Cr5Fe5 cuboctahedra, edges with four equivalent Fe(1)Y2Cr5Fe5 cuboctahedra, faces with two equivalent Fe(2)Y2Cr4Fe6 cuboctahedra, faces with four equivalent Fe(3)Y2Cr5Fe5 cuboctahedra, and faces with six equivalent Fe(1)Y2Cr5Fe5 cuboctahedra. In the second Fe site, Fe(2) is bonded to two equivalent Y(1), two equivalent Cr(1), two equivalent Cr(2), two equivalent Fe(3), and four equivalent Fe(1) atoms to form distorted FeY2Cr4Fe6 cuboctahedra that share corners with four equivalent Fe(3)Y2Cr5Fe5 cuboctahedra, corners with eight equivalent Fe(1)Y2Cr5Fe5 cuboctahedra, edges with two equivalent Fe(2)Y2Cr4Fe6 cuboctahedra, edges with four equivalent Fe(1)Y2Cr5Fe5 cuboctahedra, faces with six equivalent Fe(3)Y2Cr5Fe5 cuboctahedra, and faces with eight equivalent Fe(1)Y2Cr5Fe5 cuboctahedra. In the third Fe site, Fe(3) is bonded to two equivalent Y(1), one Cr(2), one Cr(3), one Cr(4), two equivalent Cr(1), one Fe(2), and four equivalent Fe(1) atoms to form distorted FeY2Cr5Fe5 cuboctahedra that share corners with two equivalent Fe(2)Y2Cr4Fe6 cuboctahedra, corners with six equivalent Fe(3)Y2Cr5Fe5 cuboctahedra, corners with eight equivalent Fe(1)Y2Cr5Fe5 cuboctahedra, edges with three equivalent Fe(3)Y2Cr5Fe5 cuboctahedra, edges with four equivalent Fe(1)Y2Cr5Fe5 cuboctahedra,  a faceface with one Fe(3)Y2Cr5Fe5 cuboctahedra, faces with three equivalent Fe(2)Y2Cr4Fe6 cuboctahedra, and faces with eight equivalent Fe(1)Y2Cr5Fe5 cuboctahedra. is represented by the CIF file [CIF]
data_YCr5Fe7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.737
_cell_length_b   6.327
_cell_length_c   6.327
_cell_angle_alpha   97.754
_cell_angle_beta   111.985
_cell_angle_gamma   68.015
_symmetry_Int_Tables_number   1
_cell_volume   163.076
_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
  Y  Y0  1  0.000  0.004  0.004  1.0
  Cr  Cr1  1  0.632  0.366  0.630  1.0
  Cr  Cr2  1  0.368  0.630  0.366  1.0
  Cr  Cr3  1  0.000  0.368  0.368  1.0
  Cr  Cr4  1  0.000  0.632  0.632  1.0
  Cr  Cr5  1  0.500  0.777  0.777  1.0
  Fe  Fe6  1  0.503  0.998  0.502  1.0
  Fe  Fe7  1  0.001  0.998  0.502  1.0
  Fe  Fe8  1  0.497  0.502  0.998  1.0
  Fe  Fe9  1  0.999  0.502  0.998  1.0
  Fe  Fe10  1  0.500  0.223  0.223  1.0
  Fe  Fe11  1  0.275  0.226  0.775  1.0
  Fe  Fe12  1  0.725  0.775  0.226  1.0
[/CIF]
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The material described by YCr5Fe7 crystallizes in the orthorhombic Imm2 space group. Y(1) is bonded in a 20-coordinate geometry to one Cr(2), one Cr(3), two equivalent Cr(1), two equivalent Cr(4), two equivalent Fe(2), four equivalent Fe(3), and eight equivalent Fe(1) atoms. There are four inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 14-coordinate geometry to one Y(1), one Cr(1), one Cr(4), two equivalent Cr(2), two equivalent Cr(3), one Fe(2), two equivalent Fe(3), and four equivalent Fe(1) atoms. In the second Cr site, Cr(2) is bonded in a 10-coordinate geometry to one Y(1), one Cr(3), four equivalent Cr(1), two equivalent Fe(2), two equivalent Fe(3), and four equivalent Fe(1) atoms. In the third Cr site, Cr(3) is bonded in a 14-coordinate geometry to one Y(1), one Cr(2), two equivalent Cr(4), four equivalent Cr(1), two equivalent Fe(3), and four equivalent Fe(1) atoms. In the fourth Cr site, Cr(4) is bonded in a 12-coordinate geometry to two equivalent Y(1), two equivalent Cr(1), two equivalent Cr(3), two equivalent Fe(3), and four equivalent Fe(1) atoms. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent Y(1), one Cr(2), one Cr(3), one Cr(4), two equivalent Cr(1), one Fe(2), two equivalent Fe(1), and two equivalent Fe(3) atoms to form distorted FeY2Cr5Fe5 cuboctahedra that share corners with two equivalent Fe(2)Y2Cr4Fe6 cuboctahedra, corners with four equivalent Fe(3)Y2Cr5Fe5 cuboctahedra, corners with ten equivalent Fe(1)Y2Cr5Fe5 cuboctahedra,  an edgeedge with one Fe(2)Y2Cr4Fe6 cuboctahedra, edges with two equivalent Fe(3)Y2Cr5Fe5 cuboctahedra, edges with four equivalent Fe(1)Y2Cr5Fe5 cuboctahedra, faces with two equivalent Fe(2)Y2Cr4Fe6 cuboctahedra, faces with four equivalent Fe(3)Y2Cr5Fe5 cuboctahedra, and faces with six equivalent Fe(1)Y2Cr5Fe5 cuboctahedra. In the second Fe site, Fe(2) is bonded to two equivalent Y(1), two equivalent Cr(1), two equivalent Cr(2), two equivalent Fe(3), and four equivalent Fe(1) atoms to form distorted FeY2Cr4Fe6 cuboctahedra that share corners with four equivalent Fe(3)Y2Cr5Fe5 cuboctahedra, corners with eight equivalent Fe(1)Y2Cr5Fe5 cuboctahedra, edges with two equivalent Fe(2)Y2Cr4Fe6 cuboctahedra, edges with four equivalent Fe(1)Y2Cr5Fe5 cuboctahedra, faces with six equivalent Fe(3)Y2Cr5Fe5 cuboctahedra, and faces with eight equivalent Fe(1)Y2Cr5Fe5 cuboctahedra. In the third Fe site, Fe(3) is bonded to two equivalent Y(1), one Cr(2), one Cr(3), one Cr(4), two equivalent Cr(1), one Fe(2), and four equivalent Fe(1) atoms to form distorted FeY2Cr5Fe5 cuboctahedra that share corners with two equivalent Fe(2)Y2Cr4Fe6 cuboctahedra, corners with six equivalent Fe(3)Y2Cr5Fe5 cuboctahedra, corners with eight equivalent Fe(1)Y2Cr5Fe5 cuboctahedra, edges with three equivalent Fe(3)Y2Cr5Fe5 cuboctahedra, edges with four equivalent Fe(1)Y2Cr5Fe5 cuboctahedra,  a faceface with one Fe(3)Y2Cr5Fe5 cuboctahedra, faces with three equivalent Fe(2)Y2Cr4Fe6 cuboctahedra, and faces with eight equivalent Fe(1)Y2Cr5Fe5 cuboctahedra. is represented by the CIF file [CIF]
data_YCr5Fe7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.737
_cell_length_b   6.327
_cell_length_c   6.327
_cell_angle_alpha   97.754
_cell_angle_beta   111.985
_cell_angle_gamma   68.015
_symmetry_Int_Tables_number   1
_cell_volume   163.076
_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
  Y  Y0  1  0.000  0.004  0.004  1.0
  Cr  Cr1  1  0.632  0.366  0.630  1.0
  Cr  Cr2  1  0.368  0.630  0.366  1.0
  Cr  Cr3  1  0.000  0.368  0.368  1.0
  Cr  Cr4  1  0.000  0.632  0.632  1.0
  Cr  Cr5  1  0.500  0.777  0.777  1.0
  Fe  Fe6  1  0.503  0.998  0.502  1.0
  Fe  Fe7  1  0.001  0.998  0.502  1.0
  Fe  Fe8  1  0.497  0.502  0.998  1.0
  Fe  Fe9  1  0.999  0.502  0.998  1.0
  Fe  Fe10  1  0.500  0.223  0.223  1.0
  Fe  Fe11  1  0.275  0.226  0.775  1.0
  Fe  Fe12  1  0.725  0.775  0.226  1.0
[/CIF]
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