The material described by Mg6CrCo crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Cr(1), and two equivalent Co(1) atoms. In the second Mg site, Mg(2) is bonded in a 12-coordinate geometry to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Co(1) atoms. In the third Mg site, Mg(3) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Cr(1), and two equivalent Co(1) atoms to form distorted MgMg8Cr2Co2 cuboctahedra that share corners with four equivalent Mg(4)Mg10Cr2 cuboctahedra, corners with ten equivalent Mg(3)Mg8Cr2Co2 cuboctahedra, edges with two equivalent Mg(4)Mg10Cr2 cuboctahedra, edges with two equivalent Mg(3)Mg8Cr2Co2 cuboctahedra, faces with two equivalent Mg(4)Mg10Cr2 cuboctahedra, and faces with four equivalent Mg(3)Mg8Cr2Co2 cuboctahedra. In the fourth Mg site, Mg(4) is bonded to two equivalent Mg(2), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Cr(1) atoms to form distorted MgMg10Cr2 cuboctahedra that share corners with six equivalent Mg(4)Mg10Cr2 cuboctahedra, corners with eight equivalent Mg(3)Mg8Cr2Co2 cuboctahedra, edges with four equivalent Mg(3)Mg8Cr2Co2 cuboctahedra, faces with two equivalent Mg(4)Mg10Cr2 cuboctahedra, and faces with four equivalent Mg(3)Mg8Cr2Co2 cuboctahedra. Cr(1) is bonded in a 12-coordinate geometry to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Co(1) atoms. Co(1) is bonded in a 10-coordinate geometry to two equivalent Mg(2), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Cr(1) atoms. is represented by the CIF file [CIF]
data_Mg6CrCo
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.589
_cell_length_b   5.852
_cell_length_c   6.157
_cell_angle_alpha   118.374
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   145.513
_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
  Co  Co0  1  0.000  0.799  0.598  1.0
  Cr  Cr1  1  0.500  0.696  0.392  1.0
  Mg  Mg2  1  1.000  0.822  0.170  1.0
  Mg  Mg3  1  0.000  0.349  0.170  1.0
  Mg  Mg4  1  0.000  0.328  0.657  1.0
  Mg  Mg5  1  0.500  0.678  0.836  1.0
  Mg  Mg6  1  0.500  0.158  0.836  1.0
  Mg  Mg7  1  0.500  0.170  0.340  1.0
[/CIF]
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The material described by Mg6CrCo crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Cr(1), and two equivalent Co(1) atoms. In the second Mg site, Mg(2) is bonded in a 12-coordinate geometry to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Co(1) atoms. In the third Mg site, Mg(3) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Cr(1), and two equivalent Co(1) atoms to form distorted MgMg8Cr2Co2 cuboctahedra that share corners with four equivalent Mg(4)Mg10Cr2 cuboctahedra, corners with ten equivalent Mg(3)Mg8Cr2Co2 cuboctahedra, edges with two equivalent Mg(4)Mg10Cr2 cuboctahedra, edges with two equivalent Mg(3)Mg8Cr2Co2 cuboctahedra, faces with two equivalent Mg(4)Mg10Cr2 cuboctahedra, and faces with four equivalent Mg(3)Mg8Cr2Co2 cuboctahedra. In the fourth Mg site, Mg(4) is bonded to two equivalent Mg(2), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Cr(1) atoms to form distorted MgMg10Cr2 cuboctahedra that share corners with six equivalent Mg(4)Mg10Cr2 cuboctahedra, corners with eight equivalent Mg(3)Mg8Cr2Co2 cuboctahedra, edges with four equivalent Mg(3)Mg8Cr2Co2 cuboctahedra, faces with two equivalent Mg(4)Mg10Cr2 cuboctahedra, and faces with four equivalent Mg(3)Mg8Cr2Co2 cuboctahedra. Cr(1) is bonded in a 12-coordinate geometry to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Co(1) atoms. Co(1) is bonded in a 10-coordinate geometry to two equivalent Mg(2), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Cr(1) atoms. is represented by the CIF file [CIF]
data_Mg6CrCo
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.589
_cell_length_b   5.852
_cell_length_c   6.157
_cell_angle_alpha   118.374
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   145.513
_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
  Co  Co0  1  0.000  0.799  0.598  1.0
  Cr  Cr1  1  0.500  0.696  0.392  1.0
  Mg  Mg2  1  1.000  0.822  0.170  1.0
  Mg  Mg3  1  0.000  0.349  0.170  1.0
  Mg  Mg4  1  0.000  0.328  0.657  1.0
  Mg  Mg5  1  0.500  0.678  0.836  1.0
  Mg  Mg6  1  0.500  0.158  0.836  1.0
  Mg  Mg7  1  0.500  0.170  0.340  1.0
[/CIF]
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