The material structure described by BaEuS2 is Caswellsilverite-like structured and crystallizes in the tetragonal P4/mmm space group. Ba(1) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form BaS6 octahedra that share corners with six equivalent Ba(1)S6 octahedra, edges with four equivalent Ba(1)S6 octahedra, and edges with eight equivalent Eu(1)S6 octahedra. The corner-sharing octahedra are not tilted. Eu(1) is bonded to two equivalent S(2) and four equivalent S(1) atoms to form EuS6 octahedra that share corners with six equivalent Eu(1)S6 octahedra, edges with four equivalent Eu(1)S6 octahedra, and edges with eight equivalent Ba(1)S6 octahedra. The corner-sharing octahedra are not tilted. There are two inequivalent S sites. In the first S site, S(1) is bonded to two equivalent Ba(1) and four equivalent Eu(1) atoms to form SBa2Eu4 octahedra that share corners with six equivalent S(1)Ba2Eu4 octahedra, edges with four equivalent S(1)Ba2Eu4 octahedra, and edges with eight equivalent S(2)Ba4Eu2 octahedra. The corner-sharing octahedra are not tilted. In the second S site, S(2) is bonded to four equivalent Ba(1) and two equivalent Eu(1) atoms to form SBa4Eu2 octahedra that share corners with six equivalent S(2)Ba4Eu2 octahedra, edges with four equivalent S(2)Ba4Eu2 octahedra, and edges with eight equivalent S(1)Ba2Eu4 octahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_BaEuS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.422
_cell_length_b   4.422
_cell_length_c   6.255
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   122.315
_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
  Ba  Ba0  1  0.000  0.000  0.000  1.0
  Eu  Eu1  1  0.500  0.500  0.500  1.0
  S  S2  1  0.000  0.000  0.500  1.0
  S  S3  1  0.500  0.500  0.000  1.0
[/CIF]
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The material structure described by BaEuS2 is Caswellsilverite-like structured and crystallizes in the tetragonal P4/mmm space group. Ba(1) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form BaS6 octahedra that share corners with six equivalent Ba(1)S6 octahedra, edges with four equivalent Ba(1)S6 octahedra, and edges with eight equivalent Eu(1)S6 octahedra. The corner-sharing octahedra are not tilted. Eu(1) is bonded to two equivalent S(2) and four equivalent S(1) atoms to form EuS6 octahedra that share corners with six equivalent Eu(1)S6 octahedra, edges with four equivalent Eu(1)S6 octahedra, and edges with eight equivalent Ba(1)S6 octahedra. The corner-sharing octahedra are not tilted. There are two inequivalent S sites. In the first S site, S(1) is bonded to two equivalent Ba(1) and four equivalent Eu(1) atoms to form SBa2Eu4 octahedra that share corners with six equivalent S(1)Ba2Eu4 octahedra, edges with four equivalent S(1)Ba2Eu4 octahedra, and edges with eight equivalent S(2)Ba4Eu2 octahedra. The corner-sharing octahedra are not tilted. In the second S site, S(2) is bonded to four equivalent Ba(1) and two equivalent Eu(1) atoms to form SBa4Eu2 octahedra that share corners with six equivalent S(2)Ba4Eu2 octahedra, edges with four equivalent S(2)Ba4Eu2 octahedra, and edges with eight equivalent S(1)Ba2Eu4 octahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_BaEuS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.422
_cell_length_b   4.422
_cell_length_c   6.255
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   122.315
_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
  Ba  Ba0  1  0.000  0.000  0.000  1.0
  Eu  Eu1  1  0.500  0.500  0.500  1.0
  S  S2  1  0.000  0.000  0.500  1.0
  S  S3  1  0.500  0.500  0.000  1.0
[/CIF]
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