The compound described by Mg2V3CrS8 is Spinel-derived structured and crystallizes in the triclinic P-1 space group. Mg(1) is bonded to one S(1), one S(2), one S(3), and one S(4) atom to form MgS4 tetrahedra that share corners with three equivalent V(1)S6 octahedra, corners with three equivalent V(2)S6 octahedra, corners with three equivalent V(3)S6 octahedra, and corners with three equivalent Cr(1)S6 octahedra. The corner-sharing octahedral tilt angles range from 58-60°. There are three inequivalent V sites. In the first V site, V(1) is bonded to two equivalent S(2), two equivalent S(3), and two equivalent S(4) atoms to form VS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra, edges with two equivalent V(2)S6 octahedra, edges with two equivalent V(3)S6 octahedra, and edges with two equivalent Cr(1)S6 octahedra. In the second V site, V(2) is bonded to two equivalent S(1), two equivalent S(3), and two equivalent S(4) atoms to form VS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra, edges with two equivalent V(1)S6 octahedra, edges with two equivalent V(3)S6 octahedra, and edges with two equivalent Cr(1)S6 octahedra. In the third V site, V(3) is bonded to two equivalent S(1), two equivalent S(2), and two equivalent S(3) atoms to form VS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra, edges with two equivalent V(1)S6 octahedra, edges with two equivalent V(2)S6 octahedra, and edges with two equivalent Cr(1)S6 octahedra. Cr(1) is bonded to two equivalent S(1), two equivalent S(2), and two equivalent S(4) atoms to form CrS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra, edges with two equivalent V(1)S6 octahedra, edges with two equivalent V(2)S6 octahedra, and edges with two equivalent V(3)S6 octahedra. There are four inequivalent S sites. In the first S site, S(1) is bonded to one Mg(1), one V(2), one V(3), and one Cr(1) atom to form distorted SMgV2Cr trigonal pyramids that share corners with three equivalent S(1)MgV2Cr trigonal pyramids, corners with three equivalent S(2)MgV2Cr trigonal pyramids, corners with three equivalent S(4)MgV2Cr trigonal pyramids, corners with three equivalent S(3)MgV3 trigonal pyramids,  an edgeedge with one S(2)MgV2Cr trigonal pyramid,  an edgeedge with one S(4)MgV2Cr trigonal pyramid, and  an edgeedge with one S(3)MgV3 trigonal pyramid. In the second S site, S(2) is bonded to one Mg(1), one V(1), one V(3), and one Cr(1) atom to form distorted SMgV2Cr trigonal pyramids that share corners with three equivalent S(1)MgV2Cr trigonal pyramids, corners with three equivalent S(2)MgV2Cr trigonal pyramids, corners with three equivalent S(4)MgV2Cr trigonal pyramids, corners with three equivalent S(3)MgV3 trigonal pyramids,  an edgeedge with one S(1)MgV2Cr trigonal pyramid,  an edgeedge with one S(4)MgV2Cr trigonal pyramid, and  an edgeedge with one S(3)MgV3 trigonal pyramid. In the third S site, S(3) is bonded to one Mg(1), one V(1), one V(2), and one V(3) atom to form distorted SMgV3 trigonal pyramids that share corners with three equivalent S(1)MgV2Cr trigonal pyramids, corners with three equivalent S(2)MgV2Cr trigonal pyramids, corners with three equivalent S(4)MgV2Cr trigonal pyramids, corners with three equivalent S(3)MgV3 trigonal pyramids,  an edgeedge with one S(1)MgV2Cr trigonal pyramid,  an edgeedge with one S(2)MgV2Cr trigonal pyramid, and  an edgeedge with one S(4)MgV2Cr trigonal pyramid. In the fourth S site, S(4) is bonded to one Mg(1), one V(1), one V(2), and one Cr(1) atom to form distorted SMgV2Cr trigonal pyramids that share corners with three equivalent S(1)MgV2Cr trigonal pyramids, corners with three equivalent S(2)MgV2Cr trigonal pyramids, corners with three equivalent S(4)MgV2Cr trigonal pyramids, corners with three equivalent S(3)MgV3 trigonal pyramids,  an edgeedge with one S(1)MgV2Cr trigonal pyramid,  an edgeedge with one S(2)MgV2Cr trigonal pyramid, and  an edgeedge with one S(3)MgV3 trigonal pyramid. is represented by the CIF file [CIF]
data_Mg2V3CrS8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.178
_cell_length_b   7.304
_cell_length_c   7.205
_cell_angle_alpha   60.495
_cell_angle_beta   60.055
_cell_angle_gamma   60.464
_symmetry_Int_Tables_number   1
_cell_volume   269.170
_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  0.874  0.876  0.875  1.0
  Mg  Mg1  1  0.126  0.124  0.125  1.0
  V  V2  1  0.500  0.500  0.500  1.0
  V  V3  1  0.500  0.500  0.000  1.0
  V  V4  1  1.000  0.500  0.500  1.0
  Cr  Cr5  1  0.500  1.000  0.500  1.0
  S  S6  1  0.737  0.741  0.735  1.0
  S  S7  1  0.264  0.259  0.713  1.0
  S  S8  1  0.262  0.716  0.261  1.0
  S  S9  1  0.713  0.260  0.264  1.0
  S  S10  1  0.738  0.284  0.739  1.0
  S  S11  1  0.287  0.740  0.736  1.0
  S  S12  1  0.263  0.259  0.265  1.0
  S  S13  1  0.736  0.741  0.287  1.0
[/CIF]
.
The compound described by Mg2V3CrS8 is Spinel-derived structured and crystallizes in the triclinic P-1 space group. Mg(1) is bonded to one S(1), one S(2), one S(3), and one S(4) atom to form MgS4 tetrahedra that share corners with three equivalent V(1)S6 octahedra, corners with three equivalent V(2)S6 octahedra, corners with three equivalent V(3)S6 octahedra, and corners with three equivalent Cr(1)S6 octahedra. The corner-sharing octahedral tilt angles range from 58-60°. There are three inequivalent V sites. In the first V site, V(1) is bonded to two equivalent S(2), two equivalent S(3), and two equivalent S(4) atoms to form VS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra, edges with two equivalent V(2)S6 octahedra, edges with two equivalent V(3)S6 octahedra, and edges with two equivalent Cr(1)S6 octahedra. In the second V site, V(2) is bonded to two equivalent S(1), two equivalent S(3), and two equivalent S(4) atoms to form VS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra, edges with two equivalent V(1)S6 octahedra, edges with two equivalent V(3)S6 octahedra, and edges with two equivalent Cr(1)S6 octahedra. In the third V site, V(3) is bonded to two equivalent S(1), two equivalent S(2), and two equivalent S(3) atoms to form VS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra, edges with two equivalent V(1)S6 octahedra, edges with two equivalent V(2)S6 octahedra, and edges with two equivalent Cr(1)S6 octahedra. Cr(1) is bonded to two equivalent S(1), two equivalent S(2), and two equivalent S(4) atoms to form CrS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra, edges with two equivalent V(1)S6 octahedra, edges with two equivalent V(2)S6 octahedra, and edges with two equivalent V(3)S6 octahedra. There are four inequivalent S sites. In the first S site, S(1) is bonded to one Mg(1), one V(2), one V(3), and one Cr(1) atom to form distorted SMgV2Cr trigonal pyramids that share corners with three equivalent S(1)MgV2Cr trigonal pyramids, corners with three equivalent S(2)MgV2Cr trigonal pyramids, corners with three equivalent S(4)MgV2Cr trigonal pyramids, corners with three equivalent S(3)MgV3 trigonal pyramids,  an edgeedge with one S(2)MgV2Cr trigonal pyramid,  an edgeedge with one S(4)MgV2Cr trigonal pyramid, and  an edgeedge with one S(3)MgV3 trigonal pyramid. In the second S site, S(2) is bonded to one Mg(1), one V(1), one V(3), and one Cr(1) atom to form distorted SMgV2Cr trigonal pyramids that share corners with three equivalent S(1)MgV2Cr trigonal pyramids, corners with three equivalent S(2)MgV2Cr trigonal pyramids, corners with three equivalent S(4)MgV2Cr trigonal pyramids, corners with three equivalent S(3)MgV3 trigonal pyramids,  an edgeedge with one S(1)MgV2Cr trigonal pyramid,  an edgeedge with one S(4)MgV2Cr trigonal pyramid, and  an edgeedge with one S(3)MgV3 trigonal pyramid. In the third S site, S(3) is bonded to one Mg(1), one V(1), one V(2), and one V(3) atom to form distorted SMgV3 trigonal pyramids that share corners with three equivalent S(1)MgV2Cr trigonal pyramids, corners with three equivalent S(2)MgV2Cr trigonal pyramids, corners with three equivalent S(4)MgV2Cr trigonal pyramids, corners with three equivalent S(3)MgV3 trigonal pyramids,  an edgeedge with one S(1)MgV2Cr trigonal pyramid,  an edgeedge with one S(2)MgV2Cr trigonal pyramid, and  an edgeedge with one S(4)MgV2Cr trigonal pyramid. In the fourth S site, S(4) is bonded to one Mg(1), one V(1), one V(2), and one Cr(1) atom to form distorted SMgV2Cr trigonal pyramids that share corners with three equivalent S(1)MgV2Cr trigonal pyramids, corners with three equivalent S(2)MgV2Cr trigonal pyramids, corners with three equivalent S(4)MgV2Cr trigonal pyramids, corners with three equivalent S(3)MgV3 trigonal pyramids,  an edgeedge with one S(1)MgV2Cr trigonal pyramid,  an edgeedge with one S(2)MgV2Cr trigonal pyramid, and  an edgeedge with one S(3)MgV3 trigonal pyramid. is represented by the CIF file [CIF]
data_Mg2V3CrS8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.178
_cell_length_b   7.304
_cell_length_c   7.205
_cell_angle_alpha   60.495
_cell_angle_beta   60.055
_cell_angle_gamma   60.464
_symmetry_Int_Tables_number   1
_cell_volume   269.170
_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  0.874  0.876  0.875  1.0
  Mg  Mg1  1  0.126  0.124  0.125  1.0
  V  V2  1  0.500  0.500  0.500  1.0
  V  V3  1  0.500  0.500  0.000  1.0
  V  V4  1  1.000  0.500  0.500  1.0
  Cr  Cr5  1  0.500  1.000  0.500  1.0
  S  S6  1  0.737  0.741  0.735  1.0
  S  S7  1  0.264  0.259  0.713  1.0
  S  S8  1  0.262  0.716  0.261  1.0
  S  S9  1  0.713  0.260  0.264  1.0
  S  S10  1  0.738  0.284  0.739  1.0
  S  S11  1  0.287  0.740  0.736  1.0
  S  S12  1  0.263  0.259  0.265  1.0
  S  S13  1  0.736  0.741  0.287  1.0
[/CIF]
.