The structure described by ErCuTe2O6Cl 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), two equivalent O(1), and two equivalent O(6) atoms. Cu(1) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(3), one O(4), one O(5), and one Cl(1) atom. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 3-coordinate geometry to one O(4), one O(5), and one O(6) atom. In the second Te site, Te(2) is bonded in a distorted T-shaped geometry to one O(1), one O(2), and one O(3) atom. There are six inequivalent O sites. In the first O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Er(1) and one Te(1) atom. In the second O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Er(1) and one Te(2) atom. In the third O site, O(2) is bonded in a distorted trigonal planar geometry to one Er(1), one Cu(1), and one Te(2) atom. In the fourth O site, O(3) is bonded in a 3-coordinate geometry to one Er(1), one Cu(1), and one Te(2) atom. In the fifth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Er(1), one Cu(1), and one Te(1) atom. In the sixth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Er(1), one Cu(1), and one Te(1) atom. Cl(1) is bonded in a distorted single-bond geometry to one Cu(1) atom. is represented by the CIF file [CIF]
data_ErCuTe2ClO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   14.957
_cell_length_b   5.419
_cell_length_c   9.282
_cell_angle_alpha   80.317
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   741.519
_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  0.413  0.746  0.026  1.0
  Er  Er1  1  0.913  0.254  0.474  1.0
  Er  Er2  1  0.587  0.254  0.974  1.0
  Er  Er3  1  0.087  0.746  0.526  1.0
  Cu  Cu4  1  0.776  0.272  0.174  1.0
  Cu  Cu5  1  0.276  0.728  0.326  1.0
  Cu  Cu6  1  0.724  0.272  0.674  1.0
  Cu  Cu7  1  0.224  0.728  0.826  1.0
  Te  Te8  1  0.348  0.255  0.781  1.0
  Te  Te9  1  0.652  0.745  0.219  1.0
  Te  Te10  1  0.587  0.780  0.706  1.0
  Te  Te11  1  0.152  0.255  0.281  1.0
  Te  Te12  1  0.087  0.220  0.794  1.0
  Te  Te13  1  0.848  0.745  0.719  1.0
  Te  Te14  1  0.413  0.220  0.294  1.0
  Te  Te15  1  0.913  0.780  0.206  1.0
  Cl  Cl16  1  0.896  0.270  0.945  1.0
  Cl  Cl17  1  0.104  0.730  0.055  1.0
  Cl  Cl18  1  0.604  0.270  0.445  1.0
  Cl  Cl19  1  0.396  0.730  0.555  1.0
  O  O20  1  0.018  0.373  0.634  1.0
  O  O21  1  0.639  0.039  0.796  1.0
  O  O22  1  0.482  0.373  0.134  1.0
  O  O23  1  0.518  0.627  0.866  1.0
  O  O24  1  0.678  0.532  0.774  1.0
  O  O25  1  0.788  0.016  0.594  1.0
  O  O26  1  0.675  0.498  0.099  1.0
  O  O27  1  0.825  0.498  0.599  1.0
  O  O28  1  0.861  0.039  0.296  1.0
  O  O29  1  0.325  0.502  0.901  1.0
  O  O30  1  0.712  0.016  0.094  1.0
  O  O31  1  0.288  0.984  0.906  1.0
  O  O32  1  0.322  0.468  0.226  1.0
  O  O33  1  0.178  0.468  0.726  1.0
  O  O34  1  0.361  0.961  0.204  1.0
  O  O35  1  0.956  0.878  0.626  1.0
  O  O36  1  0.139  0.961  0.704  1.0
  O  O37  1  0.456  0.122  0.874  1.0
  O  O38  1  0.822  0.532  0.274  1.0
  O  O39  1  0.544  0.878  0.126  1.0
  O  O40  1  0.212  0.984  0.406  1.0
  O  O41  1  0.982  0.627  0.366  1.0
  O  O42  1  0.044  0.122  0.374  1.0
  O  O43  1  0.175  0.502  0.401  1.0
[/CIF]
.
The structure described by ErCuTe2O6Cl 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), two equivalent O(1), and two equivalent O(6) atoms. Cu(1) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(3), one O(4), one O(5), and one Cl(1) atom. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 3-coordinate geometry to one O(4), one O(5), and one O(6) atom. In the second Te site, Te(2) is bonded in a distorted T-shaped geometry to one O(1), one O(2), and one O(3) atom. There are six inequivalent O sites. In the first O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Er(1) and one Te(1) atom. In the second O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Er(1) and one Te(2) atom. In the third O site, O(2) is bonded in a distorted trigonal planar geometry to one Er(1), one Cu(1), and one Te(2) atom. In the fourth O site, O(3) is bonded in a 3-coordinate geometry to one Er(1), one Cu(1), and one Te(2) atom. In the fifth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Er(1), one Cu(1), and one Te(1) atom. In the sixth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Er(1), one Cu(1), and one Te(1) atom. Cl(1) is bonded in a distorted single-bond geometry to one Cu(1) atom. is represented by the CIF file [CIF]
data_ErCuTe2ClO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   14.957
_cell_length_b   5.419
_cell_length_c   9.282
_cell_angle_alpha   80.317
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   741.519
_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  0.413  0.746  0.026  1.0
  Er  Er1  1  0.913  0.254  0.474  1.0
  Er  Er2  1  0.587  0.254  0.974  1.0
  Er  Er3  1  0.087  0.746  0.526  1.0
  Cu  Cu4  1  0.776  0.272  0.174  1.0
  Cu  Cu5  1  0.276  0.728  0.326  1.0
  Cu  Cu6  1  0.724  0.272  0.674  1.0
  Cu  Cu7  1  0.224  0.728  0.826  1.0
  Te  Te8  1  0.348  0.255  0.781  1.0
  Te  Te9  1  0.652  0.745  0.219  1.0
  Te  Te10  1  0.587  0.780  0.706  1.0
  Te  Te11  1  0.152  0.255  0.281  1.0
  Te  Te12  1  0.087  0.220  0.794  1.0
  Te  Te13  1  0.848  0.745  0.719  1.0
  Te  Te14  1  0.413  0.220  0.294  1.0
  Te  Te15  1  0.913  0.780  0.206  1.0
  Cl  Cl16  1  0.896  0.270  0.945  1.0
  Cl  Cl17  1  0.104  0.730  0.055  1.0
  Cl  Cl18  1  0.604  0.270  0.445  1.0
  Cl  Cl19  1  0.396  0.730  0.555  1.0
  O  O20  1  0.018  0.373  0.634  1.0
  O  O21  1  0.639  0.039  0.796  1.0
  O  O22  1  0.482  0.373  0.134  1.0
  O  O23  1  0.518  0.627  0.866  1.0
  O  O24  1  0.678  0.532  0.774  1.0
  O  O25  1  0.788  0.016  0.594  1.0
  O  O26  1  0.675  0.498  0.099  1.0
  O  O27  1  0.825  0.498  0.599  1.0
  O  O28  1  0.861  0.039  0.296  1.0
  O  O29  1  0.325  0.502  0.901  1.0
  O  O30  1  0.712  0.016  0.094  1.0
  O  O31  1  0.288  0.984  0.906  1.0
  O  O32  1  0.322  0.468  0.226  1.0
  O  O33  1  0.178  0.468  0.726  1.0
  O  O34  1  0.361  0.961  0.204  1.0
  O  O35  1  0.956  0.878  0.626  1.0
  O  O36  1  0.139  0.961  0.704  1.0
  O  O37  1  0.456  0.122  0.874  1.0
  O  O38  1  0.822  0.532  0.274  1.0
  O  O39  1  0.544  0.878  0.126  1.0
  O  O40  1  0.212  0.984  0.406  1.0
  O  O41  1  0.982  0.627  0.366  1.0
  O  O42  1  0.044  0.122  0.374  1.0
  O  O43  1  0.175  0.502  0.401  1.0
[/CIF]
.