The structure described by MgCu3AsS4 crystallizes in the tetragonal P-42m space group. Mg(1) is bonded in a 10-coordinate geometry to four equivalent Cu(1), two equivalent As(1), and four equivalent S(1) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 6-coordinate geometry to two equivalent Mg(1) and four equivalent S(1) atoms. In the second Cu site, Cu(2) is bonded in a tetrahedral geometry to four equivalent S(1) atoms. As(1) is bonded in a 6-coordinate geometry to two equivalent Mg(1) and four equivalent S(1) atoms. S(1) is bonded in a 5-coordinate geometry to one Mg(1), one Cu(2), two equivalent Cu(1), and one As(1) atom. is represented by the CIF card [CIF]
data_MgCu3AsS4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.422
_cell_length_b   5.869
_cell_length_c   5.422
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   172.517
_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
  Mg  Mg0  1  0.000  0.500  0.000  1.0
  Cu  Cu1  1  0.000  0.500  0.500  1.0
  Cu  Cu2  1  0.500  0.500  0.000  1.0
  Cu  Cu3  1  0.500  0.000  0.500  1.0
  As  As4  1  0.000  0.000  0.000  1.0
  S  S5  1  0.266  0.737  0.734  1.0
  S  S6  1  0.734  0.737  0.266  1.0
  S  S7  1  0.734  0.263  0.734  1.0
  S  S8  1  0.266  0.263  0.266  1.0
[/CIF]
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The structure described by MgCu3AsS4 crystallizes in the tetragonal P-42m space group. Mg(1) is bonded in a 10-coordinate geometry to four equivalent Cu(1), two equivalent As(1), and four equivalent S(1) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 6-coordinate geometry to two equivalent Mg(1) and four equivalent S(1) atoms. In the second Cu site, Cu(2) is bonded in a tetrahedral geometry to four equivalent S(1) atoms. As(1) is bonded in a 6-coordinate geometry to two equivalent Mg(1) and four equivalent S(1) atoms. S(1) is bonded in a 5-coordinate geometry to one Mg(1), one Cu(2), two equivalent Cu(1), and one As(1) atom. is represented by the CIF card [CIF]
data_MgCu3AsS4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.422
_cell_length_b   5.869
_cell_length_c   5.422
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   172.517
_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
  Mg  Mg0  1  0.000  0.500  0.000  1.0
  Cu  Cu1  1  0.000  0.500  0.500  1.0
  Cu  Cu2  1  0.500  0.500  0.000  1.0
  Cu  Cu3  1  0.500  0.000  0.500  1.0
  As  As4  1  0.000  0.000  0.000  1.0
  S  S5  1  0.266  0.737  0.734  1.0
  S  S6  1  0.734  0.737  0.266  1.0
  S  S7  1  0.734  0.263  0.734  1.0
  S  S8  1  0.266  0.263  0.266  1.0
[/CIF]
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