The crystal structure described by RbEuSiS4 crystallizes in the orthorhombic P2_12_12_1 space group. Rb(1) is bonded in a 8-coordinate geometry to one S(4), two equivalent S(1), two equivalent S(2), and three equivalent S(3) atoms. Eu(1) is bonded in a 7-coordinate geometry to one S(3), two equivalent S(1), two equivalent S(2), and two equivalent S(4) atoms. Si(1) is bonded in a tetrahedral geometry to one S(1), one S(2), one S(3), and one S(4) atom. There are four inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to two equivalent Rb(1), two equivalent Eu(1), and one Si(1) atom. In the second S site, S(2) is bonded in a 5-coordinate geometry to two equivalent Rb(1), two equivalent Eu(1), and one Si(1) atom. In the third S site, S(3) is bonded to three equivalent Rb(1), one Eu(1), and one Si(1) atom to form distorted corner-sharing SRb3EuSi trigonal bipyramids. In the fourth S site, S(4) is bonded in a distorted see-saw-like geometry to one Rb(1), two equivalent Eu(1), and one Si(1) atom. is represented by the CIF file [CIF]
data_RbEuSiS4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.492
_cell_length_b   6.671
_cell_length_c   17.243
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   746.680
_cell_formula_units_Z   4
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
  Rb  Rb0  1  0.015  0.995  0.967  1.0
  Rb  Rb1  1  0.515  0.505  0.033  1.0
  Rb  Rb2  1  0.485  0.005  0.467  1.0
  Rb  Rb3  1  0.985  0.495  0.533  1.0
  Eu  Eu4  1  0.709  0.520  0.774  1.0
  Eu  Eu5  1  0.791  0.480  0.274  1.0
  Eu  Eu6  1  0.291  0.020  0.726  1.0
  Eu  Eu7  1  0.209  0.980  0.226  1.0
  Si  Si8  1  0.790  0.988  0.663  1.0
  Si  Si9  1  0.710  0.012  0.163  1.0
  Si  Si10  1  0.210  0.488  0.837  1.0
  Si  Si11  1  0.290  0.512  0.337  1.0
  S  S12  1  0.924  0.246  0.141  1.0
  S  S13  1  0.606  0.248  0.647  1.0
  S  S14  1  0.546  0.509  0.412  1.0
  S  S15  1  0.383  0.556  0.221  1.0
  S  S16  1  0.894  0.752  0.147  1.0
  S  S17  1  0.424  0.254  0.859  1.0
  S  S18  1  0.117  0.444  0.721  1.0
  S  S19  1  0.394  0.748  0.853  1.0
  S  S20  1  0.076  0.746  0.359  1.0
  S  S21  1  0.883  0.944  0.779  1.0
  S  S22  1  0.954  0.491  0.912  1.0
  S  S23  1  0.617  0.056  0.279  1.0
  S  S24  1  0.576  0.754  0.641  1.0
  S  S25  1  0.106  0.252  0.353  1.0
  S  S26  1  0.454  0.009  0.088  1.0
  S  S27  1  0.046  0.991  0.588  1.0
[/CIF]
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The crystal structure described by RbEuSiS4 crystallizes in the orthorhombic P2_12_12_1 space group. Rb(1) is bonded in a 8-coordinate geometry to one S(4), two equivalent S(1), two equivalent S(2), and three equivalent S(3) atoms. Eu(1) is bonded in a 7-coordinate geometry to one S(3), two equivalent S(1), two equivalent S(2), and two equivalent S(4) atoms. Si(1) is bonded in a tetrahedral geometry to one S(1), one S(2), one S(3), and one S(4) atom. There are four inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to two equivalent Rb(1), two equivalent Eu(1), and one Si(1) atom. In the second S site, S(2) is bonded in a 5-coordinate geometry to two equivalent Rb(1), two equivalent Eu(1), and one Si(1) atom. In the third S site, S(3) is bonded to three equivalent Rb(1), one Eu(1), and one Si(1) atom to form distorted corner-sharing SRb3EuSi trigonal bipyramids. In the fourth S site, S(4) is bonded in a distorted see-saw-like geometry to one Rb(1), two equivalent Eu(1), and one Si(1) atom. is represented by the CIF file [CIF]
data_RbEuSiS4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.492
_cell_length_b   6.671
_cell_length_c   17.243
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   746.680
_cell_formula_units_Z   4
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
  Rb  Rb0  1  0.015  0.995  0.967  1.0
  Rb  Rb1  1  0.515  0.505  0.033  1.0
  Rb  Rb2  1  0.485  0.005  0.467  1.0
  Rb  Rb3  1  0.985  0.495  0.533  1.0
  Eu  Eu4  1  0.709  0.520  0.774  1.0
  Eu  Eu5  1  0.791  0.480  0.274  1.0
  Eu  Eu6  1  0.291  0.020  0.726  1.0
  Eu  Eu7  1  0.209  0.980  0.226  1.0
  Si  Si8  1  0.790  0.988  0.663  1.0
  Si  Si9  1  0.710  0.012  0.163  1.0
  Si  Si10  1  0.210  0.488  0.837  1.0
  Si  Si11  1  0.290  0.512  0.337  1.0
  S  S12  1  0.924  0.246  0.141  1.0
  S  S13  1  0.606  0.248  0.647  1.0
  S  S14  1  0.546  0.509  0.412  1.0
  S  S15  1  0.383  0.556  0.221  1.0
  S  S16  1  0.894  0.752  0.147  1.0
  S  S17  1  0.424  0.254  0.859  1.0
  S  S18  1  0.117  0.444  0.721  1.0
  S  S19  1  0.394  0.748  0.853  1.0
  S  S20  1  0.076  0.746  0.359  1.0
  S  S21  1  0.883  0.944  0.779  1.0
  S  S22  1  0.954  0.491  0.912  1.0
  S  S23  1  0.617  0.056  0.279  1.0
  S  S24  1  0.576  0.754  0.641  1.0
  S  S25  1  0.106  0.252  0.353  1.0
  S  S26  1  0.454  0.009  0.088  1.0
  S  S27  1  0.046  0.991  0.588  1.0
[/CIF]
.