The material structure described by MgYb2Cr2O8 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), one O(7), and one O(8) atom. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. In the second Yb site, Yb(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a tetrahedral geometry to one O(2), one O(3), one O(6), and one O(7) atom. In the second Cr site, Cr(2) is bonded in a tetrahedral geometry to one O(1), one O(4), one O(5), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Yb(1), one Yb(2), and one Cr(2) atom. In the second O site, O(2) is bonded in a distorted see-saw-like geometry to one Mg(1), one Yb(1), one Yb(2), and one Cr(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Mg(1), one Yb(1), one Yb(2), and one Cr(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Yb(1), one Yb(2), and one Cr(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Yb(1), one Yb(2), and one Cr(2) atom. In the sixth O site, O(6) is bonded in a 1-coordinate geometry to one Yb(1), one Yb(2), and one Cr(1) atom. In the seventh O site, O(7) is bonded in a distorted see-saw-like geometry to one Mg(1), one Yb(1), one Yb(2), and one Cr(1) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Mg(1), one Yb(1), one Yb(2), and one Cr(2) atom. is represented by the CIF file [CIF]
data_Yb2MgCr2O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.039
_cell_length_b   6.064
_cell_length_c   6.214
_cell_angle_alpha   105.516
_cell_angle_beta   105.237
_cell_angle_gamma   117.672
_symmetry_Int_Tables_number   1
_cell_volume   173.075
_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
  Yb  Yb0  1  0.130  0.871  0.252  1.0
  Yb  Yb1  1  0.847  0.153  0.750  1.0
  Mg  Mg2  1  0.129  0.858  0.751  1.0
  Cr  Cr3  1  0.398  0.603  0.750  1.0
  Cr  Cr4  1  0.622  0.377  0.249  1.0
  O  O5  1  0.804  0.735  0.450  1.0
  O  O6  1  0.355  0.796  0.588  1.0
  O  O7  1  0.749  0.792  0.918  1.0
  O  O8  1  0.792  0.378  0.072  1.0
  O  O9  1  0.623  0.210  0.429  1.0
  O  O10  1  0.205  0.254  0.579  1.0
  O  O11  1  0.205  0.644  0.915  1.0
  O  O12  1  0.264  0.194  0.048  1.0
[/CIF]
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The material structure described by MgYb2Cr2O8 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), one O(7), and one O(8) atom. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. In the second Yb site, Yb(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a tetrahedral geometry to one O(2), one O(3), one O(6), and one O(7) atom. In the second Cr site, Cr(2) is bonded in a tetrahedral geometry to one O(1), one O(4), one O(5), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Yb(1), one Yb(2), and one Cr(2) atom. In the second O site, O(2) is bonded in a distorted see-saw-like geometry to one Mg(1), one Yb(1), one Yb(2), and one Cr(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Mg(1), one Yb(1), one Yb(2), and one Cr(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Yb(1), one Yb(2), and one Cr(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Yb(1), one Yb(2), and one Cr(2) atom. In the sixth O site, O(6) is bonded in a 1-coordinate geometry to one Yb(1), one Yb(2), and one Cr(1) atom. In the seventh O site, O(7) is bonded in a distorted see-saw-like geometry to one Mg(1), one Yb(1), one Yb(2), and one Cr(1) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Mg(1), one Yb(1), one Yb(2), and one Cr(2) atom. is represented by the CIF file [CIF]
data_Yb2MgCr2O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.039
_cell_length_b   6.064
_cell_length_c   6.214
_cell_angle_alpha   105.516
_cell_angle_beta   105.237
_cell_angle_gamma   117.672
_symmetry_Int_Tables_number   1
_cell_volume   173.075
_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
  Yb  Yb0  1  0.130  0.871  0.252  1.0
  Yb  Yb1  1  0.847  0.153  0.750  1.0
  Mg  Mg2  1  0.129  0.858  0.751  1.0
  Cr  Cr3  1  0.398  0.603  0.750  1.0
  Cr  Cr4  1  0.622  0.377  0.249  1.0
  O  O5  1  0.804  0.735  0.450  1.0
  O  O6  1  0.355  0.796  0.588  1.0
  O  O7  1  0.749  0.792  0.918  1.0
  O  O8  1  0.792  0.378  0.072  1.0
  O  O9  1  0.623  0.210  0.429  1.0
  O  O10  1  0.205  0.254  0.579  1.0
  O  O11  1  0.205  0.644  0.915  1.0
  O  O12  1  0.264  0.194  0.048  1.0
[/CIF]
.