The structure described by ErWO4Br crystallizes in the triclinic P-1 space group. There are two inequivalent Er sites. In the first Er site, Er(1) is bonded in a 4-coordinate geometry to one O(2), one O(4), one O(6), one O(8), one Br(2), and two equivalent Br(1) atoms. In the second Er site, Er(2) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(5), one O(7), one O(8), and one Br(2) atom. There are two inequivalent W sites. In the first W site, W(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second W site, W(2) is bonded in a tetrahedral geometry to one O(5), one O(6), one O(7), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Er(2) and one W(1) atom. In the second O site, O(2) is bonded in a linear geometry to one Er(1) and one W(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Er(2) and one W(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Er(1), one Er(2), and one W(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Er(2) and one W(2) atom. In the sixth O site, O(6) is bonded in a linear geometry to one Er(1) and one W(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Er(2) and one W(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Er(1), one Er(2), and one W(2) atom. There are two inequivalent Br sites. In the first Br site, Br(1) is bonded in a water-like geometry to two equivalent Er(1) atoms. In the second Br site, Br(2) is bonded in a distorted bent 150 degrees geometry to one Er(1) and one Er(2) atom. is represented by the CIF file [CIF]
data_ErWBrO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.931
_cell_length_b   7.187
_cell_length_c   10.799
_cell_angle_alpha   102.288
_cell_angle_beta   108.467
_cell_angle_gamma   95.157
_symmetry_Int_Tables_number   1
_cell_volume   491.334
_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  0.668  0.100  0.732  1.0
  Er  Er1  1  0.332  0.900  0.268  1.0
  Er  Er2  1  0.376  0.666  0.765  1.0
  Er  Er3  1  0.624  0.334  0.235  1.0
  W  W4  1  0.725  0.816  0.133  1.0
  W  W5  1  0.275  0.184  0.867  1.0
  W  W6  1  0.767  0.584  0.626  1.0
  W  W7  1  0.233  0.416  0.374  1.0
  Br  Br8  1  0.265  0.015  0.521  1.0
  Br  Br9  1  0.735  0.985  0.479  1.0
  Br  Br10  1  0.187  0.724  0.983  1.0
  Br  Br11  1  0.813  0.276  0.017  1.0
  O  O12  1  0.651  0.736  0.955  1.0
  O  O13  1  0.349  0.264  0.045  1.0
  O  O14  1  0.996  0.892  0.203  1.0
  O  O15  1  0.004  0.108  0.797  1.0
  O  O16  1  0.653  0.625  0.198  1.0
  O  O17  1  0.347  0.375  0.802  1.0
  O  O18  1  0.409  0.991  0.814  1.0
  O  O19  1  0.591  0.009  0.186  1.0
  O  O20  1  0.036  0.652  0.667  1.0
  O  O21  1  0.964  0.348  0.333  1.0
  O  O22  1  0.729  0.391  0.698  1.0
  O  O23  1  0.271  0.609  0.302  1.0
  O  O24  1  0.659  0.499  0.445  1.0
  O  O25  1  0.341  0.501  0.555  1.0
  O  O26  1  0.658  0.780  0.705  1.0
  O  O27  1  0.342  0.220  0.295  1.0
[/CIF]
.
The structure described by ErWO4Br crystallizes in the triclinic P-1 space group. There are two inequivalent Er sites. In the first Er site, Er(1) is bonded in a 4-coordinate geometry to one O(2), one O(4), one O(6), one O(8), one Br(2), and two equivalent Br(1) atoms. In the second Er site, Er(2) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(5), one O(7), one O(8), and one Br(2) atom. There are two inequivalent W sites. In the first W site, W(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second W site, W(2) is bonded in a tetrahedral geometry to one O(5), one O(6), one O(7), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Er(2) and one W(1) atom. In the second O site, O(2) is bonded in a linear geometry to one Er(1) and one W(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Er(2) and one W(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Er(1), one Er(2), and one W(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Er(2) and one W(2) atom. In the sixth O site, O(6) is bonded in a linear geometry to one Er(1) and one W(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Er(2) and one W(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Er(1), one Er(2), and one W(2) atom. There are two inequivalent Br sites. In the first Br site, Br(1) is bonded in a water-like geometry to two equivalent Er(1) atoms. In the second Br site, Br(2) is bonded in a distorted bent 150 degrees geometry to one Er(1) and one Er(2) atom. is represented by the CIF file [CIF]
data_ErWBrO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.931
_cell_length_b   7.187
_cell_length_c   10.799
_cell_angle_alpha   102.288
_cell_angle_beta   108.467
_cell_angle_gamma   95.157
_symmetry_Int_Tables_number   1
_cell_volume   491.334
_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  0.668  0.100  0.732  1.0
  Er  Er1  1  0.332  0.900  0.268  1.0
  Er  Er2  1  0.376  0.666  0.765  1.0
  Er  Er3  1  0.624  0.334  0.235  1.0
  W  W4  1  0.725  0.816  0.133  1.0
  W  W5  1  0.275  0.184  0.867  1.0
  W  W6  1  0.767  0.584  0.626  1.0
  W  W7  1  0.233  0.416  0.374  1.0
  Br  Br8  1  0.265  0.015  0.521  1.0
  Br  Br9  1  0.735  0.985  0.479  1.0
  Br  Br10  1  0.187  0.724  0.983  1.0
  Br  Br11  1  0.813  0.276  0.017  1.0
  O  O12  1  0.651  0.736  0.955  1.0
  O  O13  1  0.349  0.264  0.045  1.0
  O  O14  1  0.996  0.892  0.203  1.0
  O  O15  1  0.004  0.108  0.797  1.0
  O  O16  1  0.653  0.625  0.198  1.0
  O  O17  1  0.347  0.375  0.802  1.0
  O  O18  1  0.409  0.991  0.814  1.0
  O  O19  1  0.591  0.009  0.186  1.0
  O  O20  1  0.036  0.652  0.667  1.0
  O  O21  1  0.964  0.348  0.333  1.0
  O  O22  1  0.729  0.391  0.698  1.0
  O  O23  1  0.271  0.609  0.302  1.0
  O  O24  1  0.659  0.499  0.445  1.0
  O  O25  1  0.341  0.501  0.555  1.0
  O  O26  1  0.658  0.780  0.705  1.0
  O  O27  1  0.342  0.220  0.295  1.0
[/CIF]
.