The crystal structure described by Cu2MgGeS4 crystallizes in the orthorhombic I222 space group. Mg(1) is bonded in a 4-coordinate geometry to two equivalent Cu(1) and four equivalent S(1) atoms. Cu(1) is bonded in a 5-coordinate geometry to one Mg(1) and four equivalent S(1) atoms. Ge(1) is bonded in a tetrahedral geometry to four equivalent S(1) atoms. S(1) is bonded to one Mg(1), two equivalent Cu(1), and one Ge(1) atom to form a mixture of distorted corner and edge-sharing SMgCu2Ge tetrahedra. is represented by the CIF file [CIF]
data_MgCu2GeS4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.909
_cell_length_b   5.327
_cell_length_c   6.600
_cell_angle_alpha   113.799
_cell_angle_beta   116.590
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   165.784
_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  0.746  0.246  0.492  1.0
  Cu  Cu2  1  0.254  0.754  0.508  1.0
  Ge  Ge3  1  0.500  0.500  0.000  1.0
  S  S4  1  0.856  0.863  0.254  1.0
  S  S5  1  0.603  0.137  0.746  1.0
  S  S6  1  0.397  0.391  0.254  1.0
  S  S7  1  0.144  0.609  0.746  1.0
[/CIF]
.
The crystal structure described by Cu2MgGeS4 crystallizes in the orthorhombic I222 space group. Mg(1) is bonded in a 4-coordinate geometry to two equivalent Cu(1) and four equivalent S(1) atoms. Cu(1) is bonded in a 5-coordinate geometry to one Mg(1) and four equivalent S(1) atoms. Ge(1) is bonded in a tetrahedral geometry to four equivalent S(1) atoms. S(1) is bonded to one Mg(1), two equivalent Cu(1), and one Ge(1) atom to form a mixture of distorted corner and edge-sharing SMgCu2Ge tetrahedra. is represented by the CIF file [CIF]
data_MgCu2GeS4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.909
_cell_length_b   5.327
_cell_length_c   6.600
_cell_angle_alpha   113.799
_cell_angle_beta   116.590
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   165.784
_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  0.746  0.246  0.492  1.0
  Cu  Cu2  1  0.254  0.754  0.508  1.0
  Ge  Ge3  1  0.500  0.500  0.000  1.0
  S  S4  1  0.856  0.863  0.254  1.0
  S  S5  1  0.603  0.137  0.746  1.0
  S  S6  1  0.397  0.391  0.254  1.0
  S  S7  1  0.144  0.609  0.746  1.0
[/CIF]
.