The structure described by CaEuS2 is Caswellsilverite-like structured and crystallizes in the tetragonal P4/mmm space group. Ca(1) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form CaS6 octahedra that share corners with six equivalent Ca(1)S6 octahedra, edges with four equivalent Ca(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 Ca(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 Ca(1) and four equivalent Eu(1) atoms to form SCa2Eu4 octahedra that share corners with six equivalent S(1)Ca2Eu4 octahedra, edges with four equivalent S(1)Ca2Eu4 octahedra, and edges with eight equivalent S(2)Ca4Eu2 octahedra. The corner-sharing octahedra are not tilted. In the second S site, S(2) is bonded to four equivalent Ca(1) and two equivalent Eu(1) atoms to form SCa4Eu2 octahedra that share corners with six equivalent S(2)Ca4Eu2 octahedra, edges with four equivalent S(2)Ca4Eu2 octahedra, and edges with eight equivalent S(1)Ca2Eu4 octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF card [CIF]
data_CaEuS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.104
_cell_length_b   4.104
_cell_length_c   5.816
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   97.952
_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
  Ca  Ca0  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 structure described by CaEuS2 is Caswellsilverite-like structured and crystallizes in the tetragonal P4/mmm space group. Ca(1) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form CaS6 octahedra that share corners with six equivalent Ca(1)S6 octahedra, edges with four equivalent Ca(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 Ca(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 Ca(1) and four equivalent Eu(1) atoms to form SCa2Eu4 octahedra that share corners with six equivalent S(1)Ca2Eu4 octahedra, edges with four equivalent S(1)Ca2Eu4 octahedra, and edges with eight equivalent S(2)Ca4Eu2 octahedra. The corner-sharing octahedra are not tilted. In the second S site, S(2) is bonded to four equivalent Ca(1) and two equivalent Eu(1) atoms to form SCa4Eu2 octahedra that share corners with six equivalent S(2)Ca4Eu2 octahedra, edges with four equivalent S(2)Ca4Eu2 octahedra, and edges with eight equivalent S(1)Ca2Eu4 octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF card [CIF]
data_CaEuS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.104
_cell_length_b   4.104
_cell_length_c   5.816
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   97.952
_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
  Ca  Ca0  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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