The compound described by MnGa2Se4 crystallizes in the tetragonal I-42m space group. Mn(1) is bonded to four equivalent Se(1) atoms to form MnSe4 tetrahedra that share corners with eight equivalent Ga(1)Se4 tetrahedra. Ga(1) is bonded to four equivalent Se(1) atoms to form GaSe4 tetrahedra that share corners with four equivalent Mn(1)Se4 tetrahedra and corners with four equivalent Ga(1)Se4 tetrahedra. Se(1) is bonded in a trigonal non-coplanar geometry to one Mn(1) and two equivalent Ga(1) atoms. is represented by the CIF file [CIF]
data_Mn(GaSe2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.467
_cell_length_b   5.467
_cell_length_c   6.998
_cell_angle_alpha   112.991
_cell_angle_beta   112.991
_cell_angle_gamma   89.998
_symmetry_Int_Tables_number   1
_cell_volume   174.378
_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
  Mn  Mn0  1  0.000  0.000  0.000  1.0
  Ga  Ga1  1  0.750  0.250  0.500  1.0
  Ga  Ga2  1  0.250  0.750  0.500  1.0
  Se  Se3  1  0.856  0.856  0.249  1.0
  Se  Se4  1  0.393  0.393  0.249  1.0
  Se  Se5  1  0.144  0.607  0.751  1.0
  Se  Se6  1  0.607  0.144  0.751  1.0
[/CIF]
.
The compound described by MnGa2Se4 crystallizes in the tetragonal I-42m space group. Mn(1) is bonded to four equivalent Se(1) atoms to form MnSe4 tetrahedra that share corners with eight equivalent Ga(1)Se4 tetrahedra. Ga(1) is bonded to four equivalent Se(1) atoms to form GaSe4 tetrahedra that share corners with four equivalent Mn(1)Se4 tetrahedra and corners with four equivalent Ga(1)Se4 tetrahedra. Se(1) is bonded in a trigonal non-coplanar geometry to one Mn(1) and two equivalent Ga(1) atoms. is represented by the CIF file [CIF]
data_Mn(GaSe2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.467
_cell_length_b   5.467
_cell_length_c   6.998
_cell_angle_alpha   112.991
_cell_angle_beta   112.991
_cell_angle_gamma   89.998
_symmetry_Int_Tables_number   1
_cell_volume   174.378
_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
  Mn  Mn0  1  0.000  0.000  0.000  1.0
  Ga  Ga1  1  0.750  0.250  0.500  1.0
  Ga  Ga2  1  0.250  0.750  0.500  1.0
  Se  Se3  1  0.856  0.856  0.249  1.0
  Se  Se4  1  0.393  0.393  0.249  1.0
  Se  Se5  1  0.144  0.607  0.751  1.0
  Se  Se6  1  0.607  0.144  0.751  1.0
[/CIF]
.