The structure described by Rb5Dy3Br12 crystallizes in the orthorhombic Amm2 space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 6-coordinate geometry to two equivalent Br(6) and four equivalent Br(5,7) atoms. In the second Rb site, Rb(2) is bonded in a 7-coordinate geometry to one Br(1); one Br(2); one Br(3); two equivalent Br(5,7); and two equivalent Br(6) atoms. In the third Rb site, Rb(3) is bonded in a 7-coordinate geometry to one Br(4); two equivalent Br(1); and four equivalent Br(5,7) atoms. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to two equivalent Br(1); two equivalent Br(3); and two equivalent Br(5,7) atoms to form edge-sharing DyBr6 octahedra. In the second Dy site, Dy(2) is bonded to two equivalent Br(2), two equivalent Br(4), and two equivalent Br(6) atoms to form edge-sharing DyBr6 octahedra. There are six inequivalent Br sites. In the first Br site, Br(1) is bonded to one Rb(2), one Rb(3), and two equivalent Dy(1) atoms to form distorted corner-sharing BrRb2Dy2 trigonal pyramids. In the second Br site, Br(2) is bonded to two equivalent Rb(2) and two equivalent Dy(2) atoms to form distorted corner-sharing BrRb2Dy2 trigonal pyramids. In the third Br site, Br(3) is bonded in a 3-coordinate geometry to one Rb(2) and two equivalent Dy(1) atoms. In the fourth Br site, Br(4) is bonded in a 3-coordinate geometry to one Rb(3) and two equivalent Dy(2) atoms. In the fifth Br site, Br(5,7) is bonded in a 5-coordinate geometry to two equivalent Rb(1), two equivalent Rb(3), and one Dy(1) atom. In the sixth Br site, Br(6) is bonded in a 5-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), and one Dy(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Rb5Dy3Br12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.082
_cell_length_b   14.187
_cell_length_c   14.183
_cell_angle_alpha   120.009
_cell_angle_beta   89.999
_cell_angle_gamma   89.999
_symmetry_Int_Tables_number   1
_cell_volume   711.273
_cell_formula_units_Z   1
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  1.000  0.667  0.333  1.0
  Rb  Rb1  1  1.000  0.333  0.667  1.0
  Rb  Rb2  1  1.000  0.274  0.274  1.0
  Rb  Rb3  1  1.000  1.000  0.725  1.0
  Rb  Rb4  1  1.000  0.725  1.000  1.0
  Dy  Dy5  1  0.500  0.664  0.664  1.0
  Dy  Dy6  1  0.500  1.000  0.336  1.0
  Dy  Dy7  1  0.500  0.337  1.000  1.0
  Br  Br8  1  1.000  0.810  0.810  1.0
  Br  Br9  1  0.000  1.000  0.190  1.0
  Br  Br10  1  0.000  0.191  1.000  1.0
  Br  Br11  1  1.000  0.521  0.521  1.0
  Br  Br12  1  0.000  1.000  0.479  1.0
  Br  Br13  1  0.000  0.480  0.000  1.0
  Br  Br14  1  0.500  0.771  0.214  1.0
  Br  Br15  1  0.500  0.442  0.229  1.0
  Br  Br16  1  0.500  0.558  0.786  1.0
  Br  Br17  1  0.500  0.786  0.558  1.0
  Br  Br18  1  0.500  0.214  0.771  1.0
  Br  Br19  1  0.500  0.229  0.442  1.0
[/CIF]
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The structure described by Rb5Dy3Br12 crystallizes in the orthorhombic Amm2 space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 6-coordinate geometry to two equivalent Br(6) and four equivalent Br(5,7) atoms. In the second Rb site, Rb(2) is bonded in a 7-coordinate geometry to one Br(1); one Br(2); one Br(3); two equivalent Br(5,7); and two equivalent Br(6) atoms. In the third Rb site, Rb(3) is bonded in a 7-coordinate geometry to one Br(4); two equivalent Br(1); and four equivalent Br(5,7) atoms. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to two equivalent Br(1); two equivalent Br(3); and two equivalent Br(5,7) atoms to form edge-sharing DyBr6 octahedra. In the second Dy site, Dy(2) is bonded to two equivalent Br(2), two equivalent Br(4), and two equivalent Br(6) atoms to form edge-sharing DyBr6 octahedra. There are six inequivalent Br sites. In the first Br site, Br(1) is bonded to one Rb(2), one Rb(3), and two equivalent Dy(1) atoms to form distorted corner-sharing BrRb2Dy2 trigonal pyramids. In the second Br site, Br(2) is bonded to two equivalent Rb(2) and two equivalent Dy(2) atoms to form distorted corner-sharing BrRb2Dy2 trigonal pyramids. In the third Br site, Br(3) is bonded in a 3-coordinate geometry to one Rb(2) and two equivalent Dy(1) atoms. In the fourth Br site, Br(4) is bonded in a 3-coordinate geometry to one Rb(3) and two equivalent Dy(2) atoms. In the fifth Br site, Br(5,7) is bonded in a 5-coordinate geometry to two equivalent Rb(1), two equivalent Rb(3), and one Dy(1) atom. In the sixth Br site, Br(6) is bonded in a 5-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), and one Dy(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Rb5Dy3Br12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.082
_cell_length_b   14.187
_cell_length_c   14.183
_cell_angle_alpha   120.009
_cell_angle_beta   89.999
_cell_angle_gamma   89.999
_symmetry_Int_Tables_number   1
_cell_volume   711.273
_cell_formula_units_Z   1
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  1.000  0.667  0.333  1.0
  Rb  Rb1  1  1.000  0.333  0.667  1.0
  Rb  Rb2  1  1.000  0.274  0.274  1.0
  Rb  Rb3  1  1.000  1.000  0.725  1.0
  Rb  Rb4  1  1.000  0.725  1.000  1.0
  Dy  Dy5  1  0.500  0.664  0.664  1.0
  Dy  Dy6  1  0.500  1.000  0.336  1.0
  Dy  Dy7  1  0.500  0.337  1.000  1.0
  Br  Br8  1  1.000  0.810  0.810  1.0
  Br  Br9  1  0.000  1.000  0.190  1.0
  Br  Br10  1  0.000  0.191  1.000  1.0
  Br  Br11  1  1.000  0.521  0.521  1.0
  Br  Br12  1  0.000  1.000  0.479  1.0
  Br  Br13  1  0.000  0.480  0.000  1.0
  Br  Br14  1  0.500  0.771  0.214  1.0
  Br  Br15  1  0.500  0.442  0.229  1.0
  Br  Br16  1  0.500  0.558  0.786  1.0
  Br  Br17  1  0.500  0.786  0.558  1.0
  Br  Br18  1  0.500  0.214  0.771  1.0
  Br  Br19  1  0.500  0.229  0.442  1.0
[/CIF]
.