The structure described by ErTlS2O9 crystallizes in the monoclinic P2_1/c space group. Er(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. Tl(1) is bonded in a single-bond geometry to one O(1) atom. There are two inequivalent S sites. In the first S site, S(1) is bonded in a tetrahedral geometry to one O(2), one O(6), one O(7), and one O(8) atom. In the second S site, S(2) is bonded in a tetrahedral geometry to one O(1), one O(3), one O(4), and one O(9) atom. There are nine inequivalent O sites. In the first O site, O(5) is bonded in a single-bond geometry to one Er(1) atom. In the second O site, O(6) is bonded in a distorted water-like geometry to one Er(1) and one S(1) atom. In the third O site, O(7) is bonded in a distorted single-bond geometry to one Er(1) and one S(1) atom. In the fourth O site, O(8) is bonded in a bent 150 degrees geometry to one Er(1) and one S(1) atom. In the fifth O site, O(1) is bonded in a single-bond geometry to one Tl(1) and one S(2) atom. In the sixth O site, O(9) is bonded in a bent 150 degrees geometry to one Er(1) and one S(2) atom. In the seventh O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Er(1) and one S(1) atom. In the eighth O site, O(3) is bonded in a bent 150 degrees geometry to one Er(1) and one S(2) atom. In the ninth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Er(1) and one S(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErTlS2O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.485
_cell_length_b   10.418
_cell_length_c   10.144
_cell_angle_alpha   119.709
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   778.840
_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
  Er  Er0  1  0.362  0.962  0.716  1.0
  Er  Er1  1  0.638  0.038  0.284  1.0
  Er  Er2  1  0.862  0.538  0.784  1.0
  Er  Er3  1  0.138  0.462  0.216  1.0
  Tl  Tl4  1  0.332  0.687  0.966  1.0
  Tl  Tl5  1  0.668  0.313  0.034  1.0
  Tl  Tl6  1  0.832  0.813  0.534  1.0
  Tl  Tl7  1  0.168  0.187  0.466  1.0
  S  S8  1  0.130  0.317  0.874  1.0
  S  S9  1  0.870  0.683  0.126  1.0
  S  S10  1  0.630  0.183  0.626  1.0
  S  S11  1  0.370  0.817  0.374  1.0
  S  S12  1  0.200  0.602  0.599  1.0
  S  S13  1  0.800  0.398  0.401  1.0
  S  S14  1  0.700  0.898  0.901  1.0
  S  S15  1  0.300  0.102  0.099  1.0
  O  O16  1  0.784  0.040  0.966  1.0
  O  O17  1  0.216  0.960  0.034  1.0
  O  O18  1  0.284  0.460  0.534  1.0
  O  O19  1  0.716  0.540  0.466  1.0
  O  O20  1  0.206  0.176  0.762  1.0
  O  O21  1  0.794  0.824  0.238  1.0
  O  O22  1  0.706  0.324  0.738  1.0
  O  O23  1  0.294  0.676  0.262  1.0
  O  O24  1  0.311  0.729  0.675  1.0
  O  O25  1  0.689  0.271  0.325  1.0
  O  O26  1  0.811  0.771  0.825  1.0
  O  O27  1  0.189  0.229  0.175  1.0
  O  O28  1  0.383  0.113  0.974  1.0
  O  O29  1  0.617  0.887  0.026  1.0
  O  O30  1  0.883  0.387  0.526  1.0
  O  O31  1  0.117  0.613  0.474  1.0
  O  O32  1  0.093  0.946  0.768  1.0
  O  O33  1  0.907  0.054  0.232  1.0
  O  O34  1  0.593  0.554  0.732  1.0
  O  O35  1  0.407  0.446  0.268  1.0
  O  O36  1  0.250  0.422  0.984  1.0
  O  O37  1  0.750  0.578  0.016  1.0
  O  O38  1  0.750  0.078  0.516  1.0
  O  O39  1  0.250  0.922  0.484  1.0
  O  O40  1  0.011  0.298  0.971  1.0
  O  O41  1  0.989  0.702  0.029  1.0
  O  O42  1  0.511  0.202  0.529  1.0
  O  O43  1  0.489  0.798  0.471  1.0
  O  O44  1  0.056  0.383  0.787  1.0
  O  O45  1  0.944  0.617  0.213  1.0
  O  O46  1  0.556  0.117  0.713  1.0
  O  O47  1  0.444  0.883  0.287  1.0
  O  O48  1  0.585  0.884  0.784  1.0
  O  O49  1  0.415  0.116  0.216  1.0
  O  O50  1  0.085  0.616  0.716  1.0
  O  O51  1  0.915  0.384  0.284  1.0
[/CIF]
.
The structure described by ErTlS2O9 crystallizes in the monoclinic P2_1/c space group. Er(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. Tl(1) is bonded in a single-bond geometry to one O(1) atom. There are two inequivalent S sites. In the first S site, S(1) is bonded in a tetrahedral geometry to one O(2), one O(6), one O(7), and one O(8) atom. In the second S site, S(2) is bonded in a tetrahedral geometry to one O(1), one O(3), one O(4), and one O(9) atom. There are nine inequivalent O sites. In the first O site, O(5) is bonded in a single-bond geometry to one Er(1) atom. In the second O site, O(6) is bonded in a distorted water-like geometry to one Er(1) and one S(1) atom. In the third O site, O(7) is bonded in a distorted single-bond geometry to one Er(1) and one S(1) atom. In the fourth O site, O(8) is bonded in a bent 150 degrees geometry to one Er(1) and one S(1) atom. In the fifth O site, O(1) is bonded in a single-bond geometry to one Tl(1) and one S(2) atom. In the sixth O site, O(9) is bonded in a bent 150 degrees geometry to one Er(1) and one S(2) atom. In the seventh O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Er(1) and one S(1) atom. In the eighth O site, O(3) is bonded in a bent 150 degrees geometry to one Er(1) and one S(2) atom. In the ninth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Er(1) and one S(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErTlS2O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.485
_cell_length_b   10.418
_cell_length_c   10.144
_cell_angle_alpha   119.709
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   778.840
_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
  Er  Er0  1  0.362  0.962  0.716  1.0
  Er  Er1  1  0.638  0.038  0.284  1.0
  Er  Er2  1  0.862  0.538  0.784  1.0
  Er  Er3  1  0.138  0.462  0.216  1.0
  Tl  Tl4  1  0.332  0.687  0.966  1.0
  Tl  Tl5  1  0.668  0.313  0.034  1.0
  Tl  Tl6  1  0.832  0.813  0.534  1.0
  Tl  Tl7  1  0.168  0.187  0.466  1.0
  S  S8  1  0.130  0.317  0.874  1.0
  S  S9  1  0.870  0.683  0.126  1.0
  S  S10  1  0.630  0.183  0.626  1.0
  S  S11  1  0.370  0.817  0.374  1.0
  S  S12  1  0.200  0.602  0.599  1.0
  S  S13  1  0.800  0.398  0.401  1.0
  S  S14  1  0.700  0.898  0.901  1.0
  S  S15  1  0.300  0.102  0.099  1.0
  O  O16  1  0.784  0.040  0.966  1.0
  O  O17  1  0.216  0.960  0.034  1.0
  O  O18  1  0.284  0.460  0.534  1.0
  O  O19  1  0.716  0.540  0.466  1.0
  O  O20  1  0.206  0.176  0.762  1.0
  O  O21  1  0.794  0.824  0.238  1.0
  O  O22  1  0.706  0.324  0.738  1.0
  O  O23  1  0.294  0.676  0.262  1.0
  O  O24  1  0.311  0.729  0.675  1.0
  O  O25  1  0.689  0.271  0.325  1.0
  O  O26  1  0.811  0.771  0.825  1.0
  O  O27  1  0.189  0.229  0.175  1.0
  O  O28  1  0.383  0.113  0.974  1.0
  O  O29  1  0.617  0.887  0.026  1.0
  O  O30  1  0.883  0.387  0.526  1.0
  O  O31  1  0.117  0.613  0.474  1.0
  O  O32  1  0.093  0.946  0.768  1.0
  O  O33  1  0.907  0.054  0.232  1.0
  O  O34  1  0.593  0.554  0.732  1.0
  O  O35  1  0.407  0.446  0.268  1.0
  O  O36  1  0.250  0.422  0.984  1.0
  O  O37  1  0.750  0.578  0.016  1.0
  O  O38  1  0.750  0.078  0.516  1.0
  O  O39  1  0.250  0.922  0.484  1.0
  O  O40  1  0.011  0.298  0.971  1.0
  O  O41  1  0.989  0.702  0.029  1.0
  O  O42  1  0.511  0.202  0.529  1.0
  O  O43  1  0.489  0.798  0.471  1.0
  O  O44  1  0.056  0.383  0.787  1.0
  O  O45  1  0.944  0.617  0.213  1.0
  O  O46  1  0.556  0.117  0.713  1.0
  O  O47  1  0.444  0.883  0.287  1.0
  O  O48  1  0.585  0.884  0.784  1.0
  O  O49  1  0.415  0.116  0.216  1.0
  O  O50  1  0.085  0.616  0.716  1.0
  O  O51  1  0.915  0.384  0.284  1.0
[/CIF]
.