The material described by Eu3(AsS4)2 crystallizes in the trigonal R-3c space group. Eu(1) is bonded in a 8-coordinate geometry to two equivalent S(2) and six equivalent S(1) atoms. As(1) is bonded in a tetrahedral geometry to one S(2) and three equivalent S(1) atoms. There are two inequivalent S sites. In the first S site, S(2) is bonded to three equivalent Eu(1) and one As(1) atom to form a mixture of corner and edge-sharing SEu3As trigonal pyramids. In the second S site, S(1) is bonded to three equivalent Eu(1) and one As(1) atom to form a mixture of distorted corner and edge-sharing SEu3As trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Eu3(AsS4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.601
_cell_length_b   10.601
_cell_length_c   10.601
_cell_angle_alpha   51.440
_cell_angle_beta   51.440
_cell_angle_gamma   51.438
_symmetry_Int_Tables_number   1
_cell_volume   672.601
_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
  Eu  Eu0  1  0.250  0.571  0.929  1.0
  Eu  Eu1  1  0.429  0.071  0.750  1.0
  Eu  Eu2  1  0.750  0.429  0.071  1.0
  Eu  Eu3  1  0.929  0.250  0.571  1.0
  Eu  Eu4  1  0.571  0.929  0.250  1.0
  Eu  Eu5  1  0.071  0.750  0.429  1.0
  As  As6  1  0.840  0.840  0.840  1.0
  As  As7  1  0.660  0.660  0.660  1.0
  As  As8  1  0.340  0.340  0.340  1.0
  As  As9  1  0.159  0.160  0.160  1.0
  S  S10  1  0.223  0.945  0.388  1.0
  S  S11  1  0.723  0.888  0.445  1.0
  S  S12  1  0.420  0.420  0.420  1.0
  S  S13  1  0.277  0.112  0.555  1.0
  S  S14  1  0.920  0.920  0.920  1.0
  S  S15  1  0.055  0.612  0.777  1.0
  S  S16  1  0.580  0.580  0.580  1.0
  S  S17  1  0.112  0.555  0.277  1.0
  S  S18  1  0.445  0.723  0.888  1.0
  S  S19  1  0.777  0.055  0.612  1.0
  S  S20  1  0.612  0.777  0.055  1.0
  S  S21  1  0.080  0.080  0.080  1.0
  S  S22  1  0.888  0.445  0.723  1.0
  S  S23  1  0.388  0.223  0.945  1.0
  S  S24  1  0.555  0.277  0.112  1.0
  S  S25  1  0.945  0.388  0.223  1.0
[/CIF]
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The material described by Eu3(AsS4)2 crystallizes in the trigonal R-3c space group. Eu(1) is bonded in a 8-coordinate geometry to two equivalent S(2) and six equivalent S(1) atoms. As(1) is bonded in a tetrahedral geometry to one S(2) and three equivalent S(1) atoms. There are two inequivalent S sites. In the first S site, S(2) is bonded to three equivalent Eu(1) and one As(1) atom to form a mixture of corner and edge-sharing SEu3As trigonal pyramids. In the second S site, S(1) is bonded to three equivalent Eu(1) and one As(1) atom to form a mixture of distorted corner and edge-sharing SEu3As trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Eu3(AsS4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.601
_cell_length_b   10.601
_cell_length_c   10.601
_cell_angle_alpha   51.440
_cell_angle_beta   51.440
_cell_angle_gamma   51.438
_symmetry_Int_Tables_number   1
_cell_volume   672.601
_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
  Eu  Eu0  1  0.250  0.571  0.929  1.0
  Eu  Eu1  1  0.429  0.071  0.750  1.0
  Eu  Eu2  1  0.750  0.429  0.071  1.0
  Eu  Eu3  1  0.929  0.250  0.571  1.0
  Eu  Eu4  1  0.571  0.929  0.250  1.0
  Eu  Eu5  1  0.071  0.750  0.429  1.0
  As  As6  1  0.840  0.840  0.840  1.0
  As  As7  1  0.660  0.660  0.660  1.0
  As  As8  1  0.340  0.340  0.340  1.0
  As  As9  1  0.159  0.160  0.160  1.0
  S  S10  1  0.223  0.945  0.388  1.0
  S  S11  1  0.723  0.888  0.445  1.0
  S  S12  1  0.420  0.420  0.420  1.0
  S  S13  1  0.277  0.112  0.555  1.0
  S  S14  1  0.920  0.920  0.920  1.0
  S  S15  1  0.055  0.612  0.777  1.0
  S  S16  1  0.580  0.580  0.580  1.0
  S  S17  1  0.112  0.555  0.277  1.0
  S  S18  1  0.445  0.723  0.888  1.0
  S  S19  1  0.777  0.055  0.612  1.0
  S  S20  1  0.612  0.777  0.055  1.0
  S  S21  1  0.080  0.080  0.080  1.0
  S  S22  1  0.888  0.445  0.723  1.0
  S  S23  1  0.388  0.223  0.945  1.0
  S  S24  1  0.555  0.277  0.112  1.0
  S  S25  1  0.945  0.388  0.223  1.0
[/CIF]
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