The crystal structure described by Rb2S is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 5-coordinate geometry to five equivalent S(1) atoms. In the second Rb site, Rb(2) is bonded to four equivalent S(1) atoms to form a mixture of corner and edge-sharing RbS4 tetrahedra. S(1) is bonded in a 9-coordinate geometry to four equivalent Rb(2) and five equivalent Rb(1) atoms. is represented by the CIF card [CIF]
data_Rb2S
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.100
_cell_length_b   8.306
_cell_length_c   10.013
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   424.188
_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  0.750  0.478  0.672  1.0
  Rb  Rb1  1  0.750  0.978  0.828  1.0
  Rb  Rb2  1  0.250  0.522  0.328  1.0
  Rb  Rb3  1  0.250  0.022  0.172  1.0
  Rb  Rb4  1  0.750  0.354  0.075  1.0
  Rb  Rb5  1  0.750  0.854  0.425  1.0
  Rb  Rb6  1  0.250  0.646  0.925  1.0
  Rb  Rb7  1  0.250  0.146  0.575  1.0
  S  S8  1  0.750  0.252  0.389  1.0
  S  S9  1  0.750  0.752  0.111  1.0
  S  S10  1  0.250  0.748  0.611  1.0
  S  S11  1  0.250  0.248  0.889  1.0
[/CIF]
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The crystal structure described by Rb2S is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 5-coordinate geometry to five equivalent S(1) atoms. In the second Rb site, Rb(2) is bonded to four equivalent S(1) atoms to form a mixture of corner and edge-sharing RbS4 tetrahedra. S(1) is bonded in a 9-coordinate geometry to four equivalent Rb(2) and five equivalent Rb(1) atoms. is represented by the CIF card [CIF]
data_Rb2S
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.100
_cell_length_b   8.306
_cell_length_c   10.013
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   424.188
_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  0.750  0.478  0.672  1.0
  Rb  Rb1  1  0.750  0.978  0.828  1.0
  Rb  Rb2  1  0.250  0.522  0.328  1.0
  Rb  Rb3  1  0.250  0.022  0.172  1.0
  Rb  Rb4  1  0.750  0.354  0.075  1.0
  Rb  Rb5  1  0.750  0.854  0.425  1.0
  Rb  Rb6  1  0.250  0.646  0.925  1.0
  Rb  Rb7  1  0.250  0.146  0.575  1.0
  S  S8  1  0.750  0.252  0.389  1.0
  S  S9  1  0.750  0.752  0.111  1.0
  S  S10  1  0.250  0.748  0.611  1.0
  S  S11  1  0.250  0.248  0.889  1.0
[/CIF]
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