The compound described by RbBa2Br5 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 8-coordinate geometry to two equivalent Br(1), two equivalent Br(2), two equivalent Br(3), and two equivalent Br(4) atoms. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 8-coordinate geometry to two equivalent Br(2), two equivalent Br(3), two equivalent Br(4), and two equivalent Br(5) atoms. In the second Ba site, Ba(2) is bonded to one Br(2), one Br(3), one Br(4), two equivalent Br(1), and two equivalent Br(5) atoms to form distorted edge-sharing BaBr7 pentagonal bipyramids. There are five inequivalent Br sites. In the first Br site, Br(1) is bonded to two equivalent Rb(1) and two equivalent Ba(2) atoms to form distorted BrRb2Ba2 tetrahedra that share corners with two equivalent Br(3)Rb2Ba3 square pyramids, corners with four equivalent Br(4)Rb2Ba3 square pyramids, corners with two equivalent Br(1)Rb2Ba2 tetrahedra, corners with four equivalent Br(5)Ba4 tetrahedra, corners with two equivalent Br(2)Rb2Ba3 trigonal bipyramids,  an edgeedge with one Br(4)Rb2Ba3 square pyramid, edges with two equivalent Br(3)Rb2Ba3 square pyramids,  an edgeedge with one Br(1)Rb2Ba2 tetrahedra, and edges with two equivalent Br(2)Rb2Ba3 trigonal bipyramids. In the second Br site, Br(2) is bonded to two equivalent Rb(1), one Ba(2), and two equivalent Ba(1) atoms to form distorted BrRb2Ba3 trigonal bipyramids that share  a cornercorner with one Br(3)Rb2Ba3 square pyramid, corners with five equivalent Br(4)Rb2Ba3 square pyramids, corners with two equivalent Br(5)Ba4 tetrahedra, corners with two equivalent Br(1)Rb2Ba2 tetrahedra, corners with four equivalent Br(2)Rb2Ba3 trigonal bipyramids, edges with two equivalent Br(4)Rb2Ba3 square pyramids, edges with four equivalent Br(3)Rb2Ba3 square pyramids, edges with two equivalent Br(5)Ba4 tetrahedra, and edges with two equivalent Br(1)Rb2Ba2 tetrahedra. In the third Br site, Br(3) is bonded to two equivalent Rb(1), one Ba(2), and two equivalent Ba(1) atoms to form BrRb2Ba3 square pyramids that share corners with four equivalent Br(3)Rb2Ba3 square pyramids, corners with four equivalent Br(4)Rb2Ba3 square pyramids, corners with two equivalent Br(5)Ba4 tetrahedra, corners with two equivalent Br(1)Rb2Ba2 tetrahedra,  a cornercorner with one Br(2)Rb2Ba3 trigonal bipyramid,  an edgeedge with one Br(4)Rb2Ba3 square pyramid, edges with two equivalent Br(5)Ba4 tetrahedra, edges with two equivalent Br(1)Rb2Ba2 tetrahedra, edges with four equivalent Br(2)Rb2Ba3 trigonal bipyramids, and  a faceface with one Br(4)Rb2Ba3 square pyramid. In the fourth Br site, Br(4) is bonded to two equivalent Rb(1), one Ba(2), and two equivalent Ba(1) atoms to form BrRb2Ba3 square pyramids that share corners with four equivalent Br(3)Rb2Ba3 square pyramids, corners with four equivalent Br(5)Ba4 tetrahedra, corners with four equivalent Br(1)Rb2Ba2 tetrahedra, corners with five equivalent Br(2)Rb2Ba3 trigonal bipyramids,  an edgeedge with one Br(3)Rb2Ba3 square pyramid, edges with two equivalent Br(4)Rb2Ba3 square pyramids,  an edgeedge with one Br(5)Ba4 tetrahedra,  an edgeedge with one Br(1)Rb2Ba2 tetrahedra, edges with two equivalent Br(2)Rb2Ba3 trigonal bipyramids, and  a faceface with one Br(3)Rb2Ba3 square pyramid. In the fifth Br site, Br(5) is bonded to two equivalent Ba(1) and two equivalent Ba(2) atoms to form distorted BrBa4 tetrahedra that share corners with two equivalent Br(3)Rb2Ba3 square pyramids, corners with four equivalent Br(4)Rb2Ba3 square pyramids, corners with two equivalent Br(5)Ba4 tetrahedra, corners with four equivalent Br(1)Rb2Ba2 tetrahedra, corners with two equivalent Br(2)Rb2Ba3 trigonal bipyramids,  an edgeedge with one Br(4)Rb2Ba3 square pyramid, edges with two equivalent Br(3)Rb2Ba3 square pyramids,  an edgeedge with one Br(5)Ba4 tetrahedra, and edges with two equivalent Br(2)Rb2Ba3 trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbBa2Br5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.714
_cell_length_b   9.839
_cell_length_c   13.989
_cell_angle_alpha   89.906
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1199.478
_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  0.463  0.493  0.829  1.0
  Rb  Rb1  1  0.537  0.507  0.171  1.0
  Rb  Rb2  1  0.963  0.507  0.671  1.0
  Rb  Rb3  1  0.037  0.493  0.329  1.0
  Ba  Ba4  1  0.475  0.000  0.823  1.0
  Ba  Ba5  1  0.525  1.000  0.177  1.0
  Ba  Ba6  1  0.975  1.000  0.677  1.0
  Ba  Ba7  1  0.025  0.000  0.323  1.0
  Ba  Ba8  1  0.428  0.748  0.508  1.0
  Ba  Ba9  1  0.572  0.252  0.492  1.0
  Ba  Ba10  1  0.928  0.252  0.992  1.0
  Ba  Ba11  1  0.072  0.748  0.008  1.0
  Br  Br12  1  0.332  0.460  0.594  1.0
  Br  Br13  1  0.668  0.540  0.406  1.0
  Br  Br14  1  0.832  0.540  0.906  1.0
  Br  Br15  1  0.168  0.460  0.094  1.0
  Br  Br16  1  0.670  0.781  0.685  1.0
  Br  Br17  1  0.330  0.219  0.315  1.0
  Br  Br18  1  0.170  0.219  0.815  1.0
  Br  Br19  1  0.830  0.781  0.185  1.0
  Br  Br20  1  0.197  0.767  0.782  1.0
  Br  Br21  1  0.803  0.233  0.218  1.0
  Br  Br22  1  0.697  0.233  0.718  1.0
  Br  Br23  1  0.303  0.767  0.282  1.0
  Br  Br24  1  0.044  0.777  0.502  1.0
  Br  Br25  1  0.956  0.223  0.498  1.0
  Br  Br26  1  0.544  0.223  0.998  1.0
  Br  Br27  1  0.456  0.777  0.002  1.0
  Br  Br28  1  0.837  0.960  0.901  1.0
  Br  Br29  1  0.163  0.040  0.099  1.0
  Br  Br30  1  0.337  0.040  0.599  1.0
  Br  Br31  1  0.663  0.960  0.401  1.0
[/CIF]
.
The compound described by RbBa2Br5 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 8-coordinate geometry to two equivalent Br(1), two equivalent Br(2), two equivalent Br(3), and two equivalent Br(4) atoms. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 8-coordinate geometry to two equivalent Br(2), two equivalent Br(3), two equivalent Br(4), and two equivalent Br(5) atoms. In the second Ba site, Ba(2) is bonded to one Br(2), one Br(3), one Br(4), two equivalent Br(1), and two equivalent Br(5) atoms to form distorted edge-sharing BaBr7 pentagonal bipyramids. There are five inequivalent Br sites. In the first Br site, Br(1) is bonded to two equivalent Rb(1) and two equivalent Ba(2) atoms to form distorted BrRb2Ba2 tetrahedra that share corners with two equivalent Br(3)Rb2Ba3 square pyramids, corners with four equivalent Br(4)Rb2Ba3 square pyramids, corners with two equivalent Br(1)Rb2Ba2 tetrahedra, corners with four equivalent Br(5)Ba4 tetrahedra, corners with two equivalent Br(2)Rb2Ba3 trigonal bipyramids,  an edgeedge with one Br(4)Rb2Ba3 square pyramid, edges with two equivalent Br(3)Rb2Ba3 square pyramids,  an edgeedge with one Br(1)Rb2Ba2 tetrahedra, and edges with two equivalent Br(2)Rb2Ba3 trigonal bipyramids. In the second Br site, Br(2) is bonded to two equivalent Rb(1), one Ba(2), and two equivalent Ba(1) atoms to form distorted BrRb2Ba3 trigonal bipyramids that share  a cornercorner with one Br(3)Rb2Ba3 square pyramid, corners with five equivalent Br(4)Rb2Ba3 square pyramids, corners with two equivalent Br(5)Ba4 tetrahedra, corners with two equivalent Br(1)Rb2Ba2 tetrahedra, corners with four equivalent Br(2)Rb2Ba3 trigonal bipyramids, edges with two equivalent Br(4)Rb2Ba3 square pyramids, edges with four equivalent Br(3)Rb2Ba3 square pyramids, edges with two equivalent Br(5)Ba4 tetrahedra, and edges with two equivalent Br(1)Rb2Ba2 tetrahedra. In the third Br site, Br(3) is bonded to two equivalent Rb(1), one Ba(2), and two equivalent Ba(1) atoms to form BrRb2Ba3 square pyramids that share corners with four equivalent Br(3)Rb2Ba3 square pyramids, corners with four equivalent Br(4)Rb2Ba3 square pyramids, corners with two equivalent Br(5)Ba4 tetrahedra, corners with two equivalent Br(1)Rb2Ba2 tetrahedra,  a cornercorner with one Br(2)Rb2Ba3 trigonal bipyramid,  an edgeedge with one Br(4)Rb2Ba3 square pyramid, edges with two equivalent Br(5)Ba4 tetrahedra, edges with two equivalent Br(1)Rb2Ba2 tetrahedra, edges with four equivalent Br(2)Rb2Ba3 trigonal bipyramids, and  a faceface with one Br(4)Rb2Ba3 square pyramid. In the fourth Br site, Br(4) is bonded to two equivalent Rb(1), one Ba(2), and two equivalent Ba(1) atoms to form BrRb2Ba3 square pyramids that share corners with four equivalent Br(3)Rb2Ba3 square pyramids, corners with four equivalent Br(5)Ba4 tetrahedra, corners with four equivalent Br(1)Rb2Ba2 tetrahedra, corners with five equivalent Br(2)Rb2Ba3 trigonal bipyramids,  an edgeedge with one Br(3)Rb2Ba3 square pyramid, edges with two equivalent Br(4)Rb2Ba3 square pyramids,  an edgeedge with one Br(5)Ba4 tetrahedra,  an edgeedge with one Br(1)Rb2Ba2 tetrahedra, edges with two equivalent Br(2)Rb2Ba3 trigonal bipyramids, and  a faceface with one Br(3)Rb2Ba3 square pyramid. In the fifth Br site, Br(5) is bonded to two equivalent Ba(1) and two equivalent Ba(2) atoms to form distorted BrBa4 tetrahedra that share corners with two equivalent Br(3)Rb2Ba3 square pyramids, corners with four equivalent Br(4)Rb2Ba3 square pyramids, corners with two equivalent Br(5)Ba4 tetrahedra, corners with four equivalent Br(1)Rb2Ba2 tetrahedra, corners with two equivalent Br(2)Rb2Ba3 trigonal bipyramids,  an edgeedge with one Br(4)Rb2Ba3 square pyramid, edges with two equivalent Br(3)Rb2Ba3 square pyramids,  an edgeedge with one Br(5)Ba4 tetrahedra, and edges with two equivalent Br(2)Rb2Ba3 trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbBa2Br5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.714
_cell_length_b   9.839
_cell_length_c   13.989
_cell_angle_alpha   89.906
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1199.478
_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  0.463  0.493  0.829  1.0
  Rb  Rb1  1  0.537  0.507  0.171  1.0
  Rb  Rb2  1  0.963  0.507  0.671  1.0
  Rb  Rb3  1  0.037  0.493  0.329  1.0
  Ba  Ba4  1  0.475  0.000  0.823  1.0
  Ba  Ba5  1  0.525  1.000  0.177  1.0
  Ba  Ba6  1  0.975  1.000  0.677  1.0
  Ba  Ba7  1  0.025  0.000  0.323  1.0
  Ba  Ba8  1  0.428  0.748  0.508  1.0
  Ba  Ba9  1  0.572  0.252  0.492  1.0
  Ba  Ba10  1  0.928  0.252  0.992  1.0
  Ba  Ba11  1  0.072  0.748  0.008  1.0
  Br  Br12  1  0.332  0.460  0.594  1.0
  Br  Br13  1  0.668  0.540  0.406  1.0
  Br  Br14  1  0.832  0.540  0.906  1.0
  Br  Br15  1  0.168  0.460  0.094  1.0
  Br  Br16  1  0.670  0.781  0.685  1.0
  Br  Br17  1  0.330  0.219  0.315  1.0
  Br  Br18  1  0.170  0.219  0.815  1.0
  Br  Br19  1  0.830  0.781  0.185  1.0
  Br  Br20  1  0.197  0.767  0.782  1.0
  Br  Br21  1  0.803  0.233  0.218  1.0
  Br  Br22  1  0.697  0.233  0.718  1.0
  Br  Br23  1  0.303  0.767  0.282  1.0
  Br  Br24  1  0.044  0.777  0.502  1.0
  Br  Br25  1  0.956  0.223  0.498  1.0
  Br  Br26  1  0.544  0.223  0.998  1.0
  Br  Br27  1  0.456  0.777  0.002  1.0
  Br  Br28  1  0.837  0.960  0.901  1.0
  Br  Br29  1  0.163  0.040  0.099  1.0
  Br  Br30  1  0.337  0.040  0.599  1.0
  Br  Br31  1  0.663  0.960  0.401  1.0
[/CIF]
.