The compound described by TmEuCuS3 crystallizes in the orthorhombic Cmcm space group. Tm(1) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form TmS6 octahedra that share corners with two equivalent Tm(1)S6 octahedra, edges with two equivalent Tm(1)S6 octahedra, and edges with four equivalent Cu(1)S4 tetrahedra. The corner-sharing octahedral tilt angles are 44°. Eu(1) is bonded in a 6-coordinate geometry to two equivalent S(1) and six equivalent S(2) atoms. Cu(1) is bonded to two equivalent S(1) and two equivalent S(2) atoms to form CuS4 tetrahedra that share corners with two equivalent Cu(1)S4 tetrahedra and edges with four equivalent Tm(1)S6 octahedra. There are two inequivalent S sites. In the first S site, S(1) is bonded to two equivalent Tm(1), two equivalent Eu(1), and two equivalent Cu(1) atoms to form a mixture of distorted corner and edge-sharing SEu2Tm2Cu2 octahedra. The corner-sharing octahedra are not tilted. In the second S site, S(2) is bonded in a 6-coordinate geometry to two equivalent Tm(1), three equivalent Eu(1), and one Cu(1) atom. is represented by the CIF file [CIF]
data_EuTmCuS3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.694
_cell_length_b   6.694
_cell_length_c   10.076
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   146.280
_symmetry_Int_Tables_number   1
_cell_volume   250.615
_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  0.751  0.249  0.250  1.0
  Eu  Eu1  1  0.249  0.751  0.750  1.0
  Tm  Tm2  1  0.000  0.000  0.500  1.0
  Tm  Tm3  1  0.000  0.000  0.000  1.0
  Cu  Cu4  1  0.526  0.474  0.750  1.0
  Cu  Cu5  1  0.474  0.526  0.250  1.0
  S  S6  1  0.080  0.920  0.250  1.0
  S  S7  1  0.920  0.080  0.750  1.0
  S  S8  1  0.638  0.362  0.568  1.0
  S  S9  1  0.638  0.362  0.932  1.0
  S  S10  1  0.362  0.638  0.068  1.0
  S  S11  1  0.362  0.638  0.432  1.0
[/CIF]
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The compound described by TmEuCuS3 crystallizes in the orthorhombic Cmcm space group. Tm(1) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form TmS6 octahedra that share corners with two equivalent Tm(1)S6 octahedra, edges with two equivalent Tm(1)S6 octahedra, and edges with four equivalent Cu(1)S4 tetrahedra. The corner-sharing octahedral tilt angles are 44°. Eu(1) is bonded in a 6-coordinate geometry to two equivalent S(1) and six equivalent S(2) atoms. Cu(1) is bonded to two equivalent S(1) and two equivalent S(2) atoms to form CuS4 tetrahedra that share corners with two equivalent Cu(1)S4 tetrahedra and edges with four equivalent Tm(1)S6 octahedra. There are two inequivalent S sites. In the first S site, S(1) is bonded to two equivalent Tm(1), two equivalent Eu(1), and two equivalent Cu(1) atoms to form a mixture of distorted corner and edge-sharing SEu2Tm2Cu2 octahedra. The corner-sharing octahedra are not tilted. In the second S site, S(2) is bonded in a 6-coordinate geometry to two equivalent Tm(1), three equivalent Eu(1), and one Cu(1) atom. is represented by the CIF file [CIF]
data_EuTmCuS3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.694
_cell_length_b   6.694
_cell_length_c   10.076
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   146.280
_symmetry_Int_Tables_number   1
_cell_volume   250.615
_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  0.751  0.249  0.250  1.0
  Eu  Eu1  1  0.249  0.751  0.750  1.0
  Tm  Tm2  1  0.000  0.000  0.500  1.0
  Tm  Tm3  1  0.000  0.000  0.000  1.0
  Cu  Cu4  1  0.526  0.474  0.750  1.0
  Cu  Cu5  1  0.474  0.526  0.250  1.0
  S  S6  1  0.080  0.920  0.250  1.0
  S  S7  1  0.920  0.080  0.750  1.0
  S  S8  1  0.638  0.362  0.568  1.0
  S  S9  1  0.638  0.362  0.932  1.0
  S  S10  1  0.362  0.638  0.068  1.0
  S  S11  1  0.362  0.638  0.432  1.0
[/CIF]
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