The compound described by Ba2DyCl7 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 9-coordinate geometry to one Cl(1), one Cl(2), one Cl(3), one Cl(4), one Cl(7), two equivalent Cl(5), and two equivalent Cl(6) atoms. In the second Ba site, Ba(2) is bonded in a 9-coordinate geometry to one Cl(1), one Cl(3), one Cl(4), one Cl(5), one Cl(6), two equivalent Cl(2), and two equivalent Cl(7) atoms. Dy(1) is bonded in a distorted pentagonal bipyramidal geometry to one Cl(1), one Cl(2), one Cl(3), one Cl(4), one Cl(5), one Cl(6), and one Cl(7) atom. There are seven inequivalent Cl sites. In the first Cl site, Cl(6) is bonded to one Ba(2), two equivalent Ba(1), and one Dy(1) atom to form a mixture of corner and edge-sharing ClBa3Dy tetrahedra. In the second Cl site, Cl(7) is bonded to one Ba(1), two equivalent Ba(2), and one Dy(1) atom to form a mixture of corner and edge-sharing ClBa3Dy tetrahedra. In the third Cl site, Cl(1) is bonded in a distorted trigonal non-coplanar geometry to one Ba(1), one Ba(2), and one Dy(1) atom. In the fourth Cl site, Cl(2) is bonded to one Ba(1), two equivalent Ba(2), and one Dy(1) atom to form a mixture of corner and edge-sharing ClBa3Dy tetrahedra. In the fifth Cl site, Cl(3) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one Dy(1) atom. In the sixth Cl site, Cl(4) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one Dy(1) atom. In the seventh Cl site, Cl(5) is bonded to one Ba(2), two equivalent Ba(1), and one Dy(1) atom to form a mixture of corner and edge-sharing ClBa3Dy tetrahedra. is represented by the CIF file [CIF]
data_Ba2DyCl7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   15.630
_cell_length_b   6.859
_cell_length_c   10.590
_cell_angle_alpha   89.394
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1135.317
_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
  Ba  Ba0  1  0.280  0.235  0.549  1.0
  Ba  Ba1  1  0.720  0.765  0.451  1.0
  Ba  Ba2  1  0.780  0.765  0.951  1.0
  Ba  Ba3  1  0.220  0.235  0.049  1.0
  Ba  Ba4  1  0.439  0.765  0.824  1.0
  Ba  Ba5  1  0.561  0.235  0.176  1.0
  Ba  Ba6  1  0.939  0.235  0.676  1.0
  Ba  Ba7  1  0.061  0.765  0.324  1.0
  Dy  Dy8  1  0.127  0.718  0.782  1.0
  Dy  Dy9  1  0.873  0.282  0.218  1.0
  Dy  Dy10  1  0.627  0.282  0.718  1.0
  Dy  Dy11  1  0.373  0.718  0.282  1.0
  Cl  Cl12  1  0.071  0.371  0.876  1.0
  Cl  Cl13  1  0.929  0.629  0.124  1.0
  Cl  Cl14  1  0.571  0.629  0.624  1.0
  Cl  Cl15  1  0.429  0.371  0.376  1.0
  Cl  Cl16  1  0.105  0.987  0.586  1.0
  Cl  Cl17  1  0.895  0.013  0.414  1.0
  Cl  Cl18  1  0.605  0.013  0.914  1.0
  Cl  Cl19  1  0.395  0.987  0.086  1.0
  Cl  Cl20  1  0.960  0.795  0.788  1.0
  Cl  Cl21  1  0.040  0.205  0.212  1.0
  Cl  Cl22  1  0.460  0.205  0.712  1.0
  Cl  Cl23  1  0.540  0.795  0.288  1.0
  Cl  Cl24  1  0.360  0.791  0.529  1.0
  Cl  Cl25  1  0.640  0.209  0.471  1.0
  Cl  Cl26  1  0.860  0.209  0.971  1.0
  Cl  Cl27  1  0.140  0.791  0.029  1.0
  Cl  Cl28  1  0.257  0.988  0.802  1.0
  Cl  Cl29  1  0.743  0.012  0.198  1.0
  Cl  Cl30  1  0.757  0.012  0.698  1.0
  Cl  Cl31  1  0.243  0.988  0.302  1.0
  Cl  Cl32  1  0.272  0.501  0.795  1.0
  Cl  Cl33  1  0.728  0.499  0.205  1.0
  Cl  Cl34  1  0.772  0.499  0.705  1.0
  Cl  Cl35  1  0.228  0.501  0.295  1.0
  Cl  Cl36  1  0.104  0.499  0.571  1.0
  Cl  Cl37  1  0.896  0.501  0.429  1.0
  Cl  Cl38  1  0.604  0.501  0.929  1.0
  Cl  Cl39  1  0.396  0.499  0.071  1.0
[/CIF]
.
The compound described by Ba2DyCl7 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 9-coordinate geometry to one Cl(1), one Cl(2), one Cl(3), one Cl(4), one Cl(7), two equivalent Cl(5), and two equivalent Cl(6) atoms. In the second Ba site, Ba(2) is bonded in a 9-coordinate geometry to one Cl(1), one Cl(3), one Cl(4), one Cl(5), one Cl(6), two equivalent Cl(2), and two equivalent Cl(7) atoms. Dy(1) is bonded in a distorted pentagonal bipyramidal geometry to one Cl(1), one Cl(2), one Cl(3), one Cl(4), one Cl(5), one Cl(6), and one Cl(7) atom. There are seven inequivalent Cl sites. In the first Cl site, Cl(6) is bonded to one Ba(2), two equivalent Ba(1), and one Dy(1) atom to form a mixture of corner and edge-sharing ClBa3Dy tetrahedra. In the second Cl site, Cl(7) is bonded to one Ba(1), two equivalent Ba(2), and one Dy(1) atom to form a mixture of corner and edge-sharing ClBa3Dy tetrahedra. In the third Cl site, Cl(1) is bonded in a distorted trigonal non-coplanar geometry to one Ba(1), one Ba(2), and one Dy(1) atom. In the fourth Cl site, Cl(2) is bonded to one Ba(1), two equivalent Ba(2), and one Dy(1) atom to form a mixture of corner and edge-sharing ClBa3Dy tetrahedra. In the fifth Cl site, Cl(3) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one Dy(1) atom. In the sixth Cl site, Cl(4) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one Dy(1) atom. In the seventh Cl site, Cl(5) is bonded to one Ba(2), two equivalent Ba(1), and one Dy(1) atom to form a mixture of corner and edge-sharing ClBa3Dy tetrahedra. is represented by the CIF file [CIF]
data_Ba2DyCl7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   15.630
_cell_length_b   6.859
_cell_length_c   10.590
_cell_angle_alpha   89.394
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1135.317
_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
  Ba  Ba0  1  0.280  0.235  0.549  1.0
  Ba  Ba1  1  0.720  0.765  0.451  1.0
  Ba  Ba2  1  0.780  0.765  0.951  1.0
  Ba  Ba3  1  0.220  0.235  0.049  1.0
  Ba  Ba4  1  0.439  0.765  0.824  1.0
  Ba  Ba5  1  0.561  0.235  0.176  1.0
  Ba  Ba6  1  0.939  0.235  0.676  1.0
  Ba  Ba7  1  0.061  0.765  0.324  1.0
  Dy  Dy8  1  0.127  0.718  0.782  1.0
  Dy  Dy9  1  0.873  0.282  0.218  1.0
  Dy  Dy10  1  0.627  0.282  0.718  1.0
  Dy  Dy11  1  0.373  0.718  0.282  1.0
  Cl  Cl12  1  0.071  0.371  0.876  1.0
  Cl  Cl13  1  0.929  0.629  0.124  1.0
  Cl  Cl14  1  0.571  0.629  0.624  1.0
  Cl  Cl15  1  0.429  0.371  0.376  1.0
  Cl  Cl16  1  0.105  0.987  0.586  1.0
  Cl  Cl17  1  0.895  0.013  0.414  1.0
  Cl  Cl18  1  0.605  0.013  0.914  1.0
  Cl  Cl19  1  0.395  0.987  0.086  1.0
  Cl  Cl20  1  0.960  0.795  0.788  1.0
  Cl  Cl21  1  0.040  0.205  0.212  1.0
  Cl  Cl22  1  0.460  0.205  0.712  1.0
  Cl  Cl23  1  0.540  0.795  0.288  1.0
  Cl  Cl24  1  0.360  0.791  0.529  1.0
  Cl  Cl25  1  0.640  0.209  0.471  1.0
  Cl  Cl26  1  0.860  0.209  0.971  1.0
  Cl  Cl27  1  0.140  0.791  0.029  1.0
  Cl  Cl28  1  0.257  0.988  0.802  1.0
  Cl  Cl29  1  0.743  0.012  0.198  1.0
  Cl  Cl30  1  0.757  0.012  0.698  1.0
  Cl  Cl31  1  0.243  0.988  0.302  1.0
  Cl  Cl32  1  0.272  0.501  0.795  1.0
  Cl  Cl33  1  0.728  0.499  0.205  1.0
  Cl  Cl34  1  0.772  0.499  0.705  1.0
  Cl  Cl35  1  0.228  0.501  0.295  1.0
  Cl  Cl36  1  0.104  0.499  0.571  1.0
  Cl  Cl37  1  0.896  0.501  0.429  1.0
  Cl  Cl38  1  0.604  0.501  0.929  1.0
  Cl  Cl39  1  0.396  0.499  0.071  1.0
[/CIF]
.