The compound described by TbEu4S5 is Caswellsilverite-like structured and crystallizes in the tetragonal I4/mmm space group. Tb(1) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form TbS6 octahedra that share corners with two equivalent Eu(2)S6 octahedra; corners with four equivalent Tb(1)S6 octahedra; edges with four equivalent Tb(1)S6 octahedra; and edges with eight Eu(1,1)S6 octahedra. The corner-sharing octahedra are not tilted. There are three inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to one S(2), one S(3), and four equivalent S(1) atoms to form EuS6 octahedra that share  a cornercorner with one Eu(2)S6 octahedra; corners with five Eu(1,1)S6 octahedra; edges with four equivalent Tb(1)S6 octahedra; edges with four equivalent Eu(1)S6 octahedra; and edges with four equivalent Eu(2)S6 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. In the second Eu site, Eu(2) is bonded to one S(1) and five equivalent S(3) atoms to form EuS6 octahedra that share  a cornercorner with one Tb(1)S6 octahedra,  a cornercorner with one Eu(1)S6 octahedra, corners with four equivalent Eu(2)S6 octahedra, edges with four equivalent Eu(1)S6 octahedra, and edges with eight equivalent Eu(2)S6 octahedra. The corner-sharing octahedra are not tilted. In the third Eu site, Eu(1) is bonded to one S(2), one S(3), and four equivalent S(1) atoms to form EuS6 octahedra that share  a cornercorner with one Eu(2)S6 octahedra; corners with five Eu(1,1)S6 octahedra; edges with four equivalent Tb(1)S6 octahedra; edges with four equivalent Eu(1)S6 octahedra; and edges with four equivalent Eu(2)S6 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. There are three inequivalent S sites. In the first S site, S(1) is bonded to one Tb(1), one Eu(2), and four equivalent Eu(1) atoms to form STbEu5 octahedra that share  a cornercorner with one S(3)Eu6 octahedra, corners with five equivalent S(1)TbEu5 octahedra, edges with four equivalent S(3)Eu6 octahedra, edges with four equivalent S(2)Tb4Eu2 octahedra, and edges with four equivalent S(1)TbEu5 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. In the second S site, S(2) is bonded to four equivalent Tb(1) and two Eu(1,1) atoms to form STb4Eu2 octahedra that share corners with two equivalent S(3)Eu6 octahedra, corners with four equivalent S(2)Tb4Eu2 octahedra, edges with four equivalent S(2)Tb4Eu2 octahedra, and edges with eight equivalent S(1)TbEu5 octahedra. The corner-sharing octahedra are not tilted. In the third S site, S(3) is bonded to one Eu(1) and five equivalent Eu(2) atoms to form SEu6 octahedra that share  a cornercorner with one S(2)Tb4Eu2 octahedra,  a cornercorner with one S(1)TbEu5 octahedra, corners with four equivalent S(3)Eu6 octahedra, edges with four equivalent S(1)TbEu5 octahedra, and edges with eight equivalent S(3)Eu6 octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF card [CIF]
data_TbEu4S5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   14.741
_cell_length_b   14.741
_cell_length_c   14.741
_cell_angle_alpha   164.051
_cell_angle_beta   164.051
_cell_angle_gamma   22.630
_symmetry_Int_Tables_number   1
_cell_volume   241.828
_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
  Tb  Tb0  1  0.000  0.000  0.000  1.0
  Eu  Eu1  1  0.401  0.401  0.000  1.0
  Eu  Eu2  1  0.800  0.800  0.000  1.0
  Eu  Eu3  1  0.200  0.200  0.000  1.0
  Eu  Eu4  1  0.599  0.599  0.000  1.0
  S  S5  1  0.096  0.096  0.000  1.0
  S  S6  1  0.500  0.500  0.000  1.0
  S  S7  1  0.904  0.904  0.000  1.0
  S  S8  1  0.300  0.300  0.000  1.0
  S  S9  1  0.700  0.700  0.000  1.0
[/CIF]
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The compound described by TbEu4S5 is Caswellsilverite-like structured and crystallizes in the tetragonal I4/mmm space group. Tb(1) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form TbS6 octahedra that share corners with two equivalent Eu(2)S6 octahedra; corners with four equivalent Tb(1)S6 octahedra; edges with four equivalent Tb(1)S6 octahedra; and edges with eight Eu(1,1)S6 octahedra. The corner-sharing octahedra are not tilted. There are three inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to one S(2), one S(3), and four equivalent S(1) atoms to form EuS6 octahedra that share  a cornercorner with one Eu(2)S6 octahedra; corners with five Eu(1,1)S6 octahedra; edges with four equivalent Tb(1)S6 octahedra; edges with four equivalent Eu(1)S6 octahedra; and edges with four equivalent Eu(2)S6 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. In the second Eu site, Eu(2) is bonded to one S(1) and five equivalent S(3) atoms to form EuS6 octahedra that share  a cornercorner with one Tb(1)S6 octahedra,  a cornercorner with one Eu(1)S6 octahedra, corners with four equivalent Eu(2)S6 octahedra, edges with four equivalent Eu(1)S6 octahedra, and edges with eight equivalent Eu(2)S6 octahedra. The corner-sharing octahedra are not tilted. In the third Eu site, Eu(1) is bonded to one S(2), one S(3), and four equivalent S(1) atoms to form EuS6 octahedra that share  a cornercorner with one Eu(2)S6 octahedra; corners with five Eu(1,1)S6 octahedra; edges with four equivalent Tb(1)S6 octahedra; edges with four equivalent Eu(1)S6 octahedra; and edges with four equivalent Eu(2)S6 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. There are three inequivalent S sites. In the first S site, S(1) is bonded to one Tb(1), one Eu(2), and four equivalent Eu(1) atoms to form STbEu5 octahedra that share  a cornercorner with one S(3)Eu6 octahedra, corners with five equivalent S(1)TbEu5 octahedra, edges with four equivalent S(3)Eu6 octahedra, edges with four equivalent S(2)Tb4Eu2 octahedra, and edges with four equivalent S(1)TbEu5 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. In the second S site, S(2) is bonded to four equivalent Tb(1) and two Eu(1,1) atoms to form STb4Eu2 octahedra that share corners with two equivalent S(3)Eu6 octahedra, corners with four equivalent S(2)Tb4Eu2 octahedra, edges with four equivalent S(2)Tb4Eu2 octahedra, and edges with eight equivalent S(1)TbEu5 octahedra. The corner-sharing octahedra are not tilted. In the third S site, S(3) is bonded to one Eu(1) and five equivalent Eu(2) atoms to form SEu6 octahedra that share  a cornercorner with one S(2)Tb4Eu2 octahedra,  a cornercorner with one S(1)TbEu5 octahedra, corners with four equivalent S(3)Eu6 octahedra, edges with four equivalent S(1)TbEu5 octahedra, and edges with eight equivalent S(3)Eu6 octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF card [CIF]
data_TbEu4S5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   14.741
_cell_length_b   14.741
_cell_length_c   14.741
_cell_angle_alpha   164.051
_cell_angle_beta   164.051
_cell_angle_gamma   22.630
_symmetry_Int_Tables_number   1
_cell_volume   241.828
_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
  Tb  Tb0  1  0.000  0.000  0.000  1.0
  Eu  Eu1  1  0.401  0.401  0.000  1.0
  Eu  Eu2  1  0.800  0.800  0.000  1.0
  Eu  Eu3  1  0.200  0.200  0.000  1.0
  Eu  Eu4  1  0.599  0.599  0.000  1.0
  S  S5  1  0.096  0.096  0.000  1.0
  S  S6  1  0.500  0.500  0.000  1.0
  S  S7  1  0.904  0.904  0.000  1.0
  S  S8  1  0.300  0.300  0.000  1.0
  S  S9  1  0.700  0.700  0.000  1.0
[/CIF]
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