The structure described by MgSmWS4 is Spinel-derived structured and crystallizes in the orthorhombic Imma space group. Mg(1) is bonded to two equivalent S(1) and two equivalent S(2) atoms to form MgS4 tetrahedra that share corners with six equivalent Sm(1)S6 octahedra and corners with six equivalent W(1)S6 octahedra. The corner-sharing octahedral tilt angles range from 50-65°. Sm(1) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form SmS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra, edges with two equivalent Sm(1)S6 octahedra, and edges with four equivalent W(1)S6 octahedra. W(1) is bonded to two equivalent S(2) and four equivalent S(1) atoms to form WS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra, edges with two equivalent W(1)S6 octahedra, and edges with four equivalent Sm(1)S6 octahedra. There are two inequivalent S sites. In the first S site, S(1) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Sm(1), and two equivalent W(1) atoms. In the second S site, S(2) is bonded in a rectangular see-saw-like geometry to one Mg(1), two equivalent Sm(1), and one W(1) atom. is represented by the CIF file [CIF]
data_SmMgWS4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.752
_cell_length_b   7.666
_cell_length_c   7.666
_cell_angle_alpha   59.890
_cell_angle_beta   59.629
_cell_angle_gamma   59.630
_symmetry_Int_Tables_number   1
_cell_volume   320.085
_cell_formula_units_Z   2
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
  Sm  Sm0  1  0.500  0.500  0.500  1.0
  Sm  Sm1  1  1.000  0.500  0.500  1.0
  Mg  Mg2  1  0.874  0.876  0.876  1.0
  Mg  Mg3  1  0.126  0.124  0.124  1.0
  W  W4  1  0.500  0.500  0.000  1.0
  W  W5  1  0.500  1.000  0.500  1.0
  S  S6  1  0.710  0.757  0.757  1.0
  S  S7  1  0.268  0.228  0.735  1.0
  S  S8  1  0.268  0.735  0.228  1.0
  S  S9  1  0.725  0.243  0.243  1.0
  S  S10  1  0.732  0.265  0.772  1.0
  S  S11  1  0.275  0.757  0.757  1.0
  S  S12  1  0.290  0.243  0.243  1.0
  S  S13  1  0.732  0.772  0.265  1.0
[/CIF]
.
The structure described by MgSmWS4 is Spinel-derived structured and crystallizes in the orthorhombic Imma space group. Mg(1) is bonded to two equivalent S(1) and two equivalent S(2) atoms to form MgS4 tetrahedra that share corners with six equivalent Sm(1)S6 octahedra and corners with six equivalent W(1)S6 octahedra. The corner-sharing octahedral tilt angles range from 50-65°. Sm(1) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form SmS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra, edges with two equivalent Sm(1)S6 octahedra, and edges with four equivalent W(1)S6 octahedra. W(1) is bonded to two equivalent S(2) and four equivalent S(1) atoms to form WS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra, edges with two equivalent W(1)S6 octahedra, and edges with four equivalent Sm(1)S6 octahedra. There are two inequivalent S sites. In the first S site, S(1) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Sm(1), and two equivalent W(1) atoms. In the second S site, S(2) is bonded in a rectangular see-saw-like geometry to one Mg(1), two equivalent Sm(1), and one W(1) atom. is represented by the CIF file [CIF]
data_SmMgWS4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.752
_cell_length_b   7.666
_cell_length_c   7.666
_cell_angle_alpha   59.890
_cell_angle_beta   59.629
_cell_angle_gamma   59.630
_symmetry_Int_Tables_number   1
_cell_volume   320.085
_cell_formula_units_Z   2
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
  Sm  Sm0  1  0.500  0.500  0.500  1.0
  Sm  Sm1  1  1.000  0.500  0.500  1.0
  Mg  Mg2  1  0.874  0.876  0.876  1.0
  Mg  Mg3  1  0.126  0.124  0.124  1.0
  W  W4  1  0.500  0.500  0.000  1.0
  W  W5  1  0.500  1.000  0.500  1.0
  S  S6  1  0.710  0.757  0.757  1.0
  S  S7  1  0.268  0.228  0.735  1.0
  S  S8  1  0.268  0.735  0.228  1.0
  S  S9  1  0.725  0.243  0.243  1.0
  S  S10  1  0.732  0.265  0.772  1.0
  S  S11  1  0.275  0.757  0.757  1.0
  S  S12  1  0.290  0.243  0.243  1.0
  S  S13  1  0.732  0.772  0.265  1.0
[/CIF]
.