The material described by Cr3Mn2GaS8 is Spinel-derived structured and crystallizes in the trigonal R-3m space group. Cr(1) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form CrS6 octahedra that share corners with six equivalent Mn(1)S4 tetrahedra, edges with two equivalent Ga(1)S6 octahedra, and edges with four equivalent Cr(1)S6 octahedra. Mn(1) is bonded to one S(1) and three equivalent S(2) atoms to form MnS4 tetrahedra that share corners with three equivalent Ga(1)S6 octahedra and corners with nine equivalent Cr(1)S6 octahedra. The corner-sharing octahedral tilt angles range from 58-59°. Ga(1) is bonded to six equivalent S(2) atoms to form GaS6 octahedra that share corners with six equivalent Mn(1)S4 tetrahedra and edges with six equivalent Cr(1)S6 octahedra. There are two inequivalent S sites. In the first S site, S(1) is bonded to three equivalent Cr(1) and one Mn(1) atom to form distorted SMnCr3 trigonal pyramids that share corners with three equivalent S(1)MnCr3 trigonal pyramids, corners with nine equivalent S(2)MnCr2Ga trigonal pyramids, and edges with three equivalent S(2)MnCr2Ga trigonal pyramids. In the second S site, S(2) is bonded to two equivalent Cr(1), one Mn(1), and one Ga(1) atom to form distorted SMnCr2Ga trigonal pyramids that share corners with three equivalent S(1)MnCr3 trigonal pyramids, corners with nine equivalent S(2)MnCr2Ga trigonal pyramids,  an edgeedge with one S(1)MnCr3 trigonal pyramid, and edges with two equivalent S(2)MnCr2Ga trigonal pyramids. is represented by the CIF file [CIF]
data_Mn2Cr3GaS8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.198
_cell_length_b   7.198
_cell_length_c   7.198
_cell_angle_alpha   59.944
_cell_angle_beta   59.944
_cell_angle_gamma   59.944
_symmetry_Int_Tables_number   1
_cell_volume   263.425
_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  0.375  0.375  0.375  1.0
  Mn  Mn1  1  0.625  0.625  0.625  1.0
  Cr  Cr2  1  0.500  0.000  0.000  1.0
  Cr  Cr3  1  0.000  0.000  0.500  1.0
  Cr  Cr4  1  0.000  0.500  0.000  1.0
  Ga  Ga5  1  0.000  0.000  0.000  1.0
  S  S6  1  0.239  0.239  0.239  1.0
  S  S7  1  0.781  0.242  0.242  1.0
  S  S8  1  0.242  0.242  0.781  1.0
  S  S9  1  0.242  0.781  0.242  1.0
  S  S10  1  0.761  0.761  0.761  1.0
  S  S11  1  0.219  0.758  0.758  1.0
  S  S12  1  0.758  0.758  0.219  1.0
  S  S13  1  0.758  0.219  0.758  1.0
[/CIF]
.
The material described by Cr3Mn2GaS8 is Spinel-derived structured and crystallizes in the trigonal R-3m space group. Cr(1) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form CrS6 octahedra that share corners with six equivalent Mn(1)S4 tetrahedra, edges with two equivalent Ga(1)S6 octahedra, and edges with four equivalent Cr(1)S6 octahedra. Mn(1) is bonded to one S(1) and three equivalent S(2) atoms to form MnS4 tetrahedra that share corners with three equivalent Ga(1)S6 octahedra and corners with nine equivalent Cr(1)S6 octahedra. The corner-sharing octahedral tilt angles range from 58-59°. Ga(1) is bonded to six equivalent S(2) atoms to form GaS6 octahedra that share corners with six equivalent Mn(1)S4 tetrahedra and edges with six equivalent Cr(1)S6 octahedra. There are two inequivalent S sites. In the first S site, S(1) is bonded to three equivalent Cr(1) and one Mn(1) atom to form distorted SMnCr3 trigonal pyramids that share corners with three equivalent S(1)MnCr3 trigonal pyramids, corners with nine equivalent S(2)MnCr2Ga trigonal pyramids, and edges with three equivalent S(2)MnCr2Ga trigonal pyramids. In the second S site, S(2) is bonded to two equivalent Cr(1), one Mn(1), and one Ga(1) atom to form distorted SMnCr2Ga trigonal pyramids that share corners with three equivalent S(1)MnCr3 trigonal pyramids, corners with nine equivalent S(2)MnCr2Ga trigonal pyramids,  an edgeedge with one S(1)MnCr3 trigonal pyramid, and edges with two equivalent S(2)MnCr2Ga trigonal pyramids. is represented by the CIF file [CIF]
data_Mn2Cr3GaS8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.198
_cell_length_b   7.198
_cell_length_c   7.198
_cell_angle_alpha   59.944
_cell_angle_beta   59.944
_cell_angle_gamma   59.944
_symmetry_Int_Tables_number   1
_cell_volume   263.425
_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  0.375  0.375  0.375  1.0
  Mn  Mn1  1  0.625  0.625  0.625  1.0
  Cr  Cr2  1  0.500  0.000  0.000  1.0
  Cr  Cr3  1  0.000  0.000  0.500  1.0
  Cr  Cr4  1  0.000  0.500  0.000  1.0
  Ga  Ga5  1  0.000  0.000  0.000  1.0
  S  S6  1  0.239  0.239  0.239  1.0
  S  S7  1  0.781  0.242  0.242  1.0
  S  S8  1  0.242  0.242  0.781  1.0
  S  S9  1  0.242  0.781  0.242  1.0
  S  S10  1  0.761  0.761  0.761  1.0
  S  S11  1  0.219  0.758  0.758  1.0
  S  S12  1  0.758  0.758  0.219  1.0
  S  S13  1  0.758  0.219  0.758  1.0
[/CIF]
.