The crystal structure described by RbCdBr3 crystallizes in the orthorhombic Pnma space group. Rb(1) is bonded in a 9-coordinate geometry to two equivalent Br(3), three equivalent Br(2), and four equivalent Br(1) atoms. Cd(1) is bonded to one Br(1), two equivalent Br(2), and three equivalent Br(3) atoms to form edge-sharing CdBr6 octahedra. There are three inequivalent Br sites. In the first Br site, Br(1) is bonded in a 5-coordinate geometry to four equivalent Rb(1) and one Cd(1) atom. In the second Br site, Br(2) is bonded to three equivalent Rb(1) and two equivalent Cd(1) atoms to form distorted edge-sharing BrRb3Cd2 trigonal bipyramids. In the third Br site, Br(3) is bonded in a 5-coordinate geometry to two equivalent Rb(1) and three equivalent Cd(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbCdBr3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.247
_cell_length_b   9.551
_cell_length_c   15.793
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   640.661
_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
  Rb  Rb0  1  0.750  0.569  0.174  1.0
  Rb  Rb1  1  0.250  0.431  0.826  1.0
  Rb  Rb2  1  0.750  0.069  0.326  1.0
  Rb  Rb3  1  0.250  0.931  0.674  1.0
  Cd  Cd4  1  0.750  0.835  0.945  1.0
  Cd  Cd5  1  0.250  0.165  0.055  1.0
  Cd  Cd6  1  0.750  0.335  0.555  1.0
  Cd  Cd7  1  0.250  0.665  0.445  1.0
  Br  Br8  1  0.750  0.718  0.791  1.0
  Br  Br9  1  0.250  0.282  0.209  1.0
  Br  Br10  1  0.750  0.218  0.709  1.0
  Br  Br11  1  0.250  0.782  0.291  1.0
  Br  Br12  1  0.750  0.831  0.505  1.0
  Br  Br13  1  0.250  0.169  0.495  1.0
  Br  Br14  1  0.750  0.331  0.995  1.0
  Br  Br15  1  0.250  0.669  0.005  1.0
  Br  Br16  1  0.750  0.974  0.101  1.0
  Br  Br17  1  0.250  0.026  0.899  1.0
  Br  Br18  1  0.750  0.474  0.399  1.0
  Br  Br19  1  0.250  0.526  0.601  1.0
[/CIF]
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The crystal structure described by RbCdBr3 crystallizes in the orthorhombic Pnma space group. Rb(1) is bonded in a 9-coordinate geometry to two equivalent Br(3), three equivalent Br(2), and four equivalent Br(1) atoms. Cd(1) is bonded to one Br(1), two equivalent Br(2), and three equivalent Br(3) atoms to form edge-sharing CdBr6 octahedra. There are three inequivalent Br sites. In the first Br site, Br(1) is bonded in a 5-coordinate geometry to four equivalent Rb(1) and one Cd(1) atom. In the second Br site, Br(2) is bonded to three equivalent Rb(1) and two equivalent Cd(1) atoms to form distorted edge-sharing BrRb3Cd2 trigonal bipyramids. In the third Br site, Br(3) is bonded in a 5-coordinate geometry to two equivalent Rb(1) and three equivalent Cd(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbCdBr3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.247
_cell_length_b   9.551
_cell_length_c   15.793
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   640.661
_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
  Rb  Rb0  1  0.750  0.569  0.174  1.0
  Rb  Rb1  1  0.250  0.431  0.826  1.0
  Rb  Rb2  1  0.750  0.069  0.326  1.0
  Rb  Rb3  1  0.250  0.931  0.674  1.0
  Cd  Cd4  1  0.750  0.835  0.945  1.0
  Cd  Cd5  1  0.250  0.165  0.055  1.0
  Cd  Cd6  1  0.750  0.335  0.555  1.0
  Cd  Cd7  1  0.250  0.665  0.445  1.0
  Br  Br8  1  0.750  0.718  0.791  1.0
  Br  Br9  1  0.250  0.282  0.209  1.0
  Br  Br10  1  0.750  0.218  0.709  1.0
  Br  Br11  1  0.250  0.782  0.291  1.0
  Br  Br12  1  0.750  0.831  0.505  1.0
  Br  Br13  1  0.250  0.169  0.495  1.0
  Br  Br14  1  0.750  0.331  0.995  1.0
  Br  Br15  1  0.250  0.669  0.005  1.0
  Br  Br16  1  0.750  0.974  0.101  1.0
  Br  Br17  1  0.250  0.026  0.899  1.0
  Br  Br18  1  0.750  0.474  0.399  1.0
  Br  Br19  1  0.250  0.526  0.601  1.0
[/CIF]
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