The compound described by Rb3Ge2Br7 crystallizes in the monoclinic P2_1/c space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 9-coordinate geometry to one Br(1), one Br(2), one Br(6), two equivalent Br(3), two equivalent Br(4), and two equivalent Br(5) atoms. In the second Rb site, Rb(2) is bonded in a 8-coordinate geometry to one Br(1), one Br(2), one Br(3), one Br(4), two equivalent Br(6), and two equivalent Br(7) atoms. In the third Rb site, Rb(3) is bonded in a 8-coordinate geometry to one Br(1), one Br(3), one Br(4), one Br(5), one Br(6), one Br(7), and two equivalent Br(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 3-coordinate geometry to one Br(2), one Br(4), one Br(5), and one Br(6) atom. In the second Ge site, Ge(2) is bonded in a distorted T-shaped geometry to one Br(1), one Br(3), and one Br(7) atom. There are seven inequivalent Br sites. In the first Br site, Br(5) is bonded in a distorted rectangular see-saw-like geometry to one Rb(3), two equivalent Rb(1), and one Ge(1) atom. In the second Br site, Br(6) is bonded in a 5-coordinate geometry to one Rb(1), one Rb(3), two equivalent Rb(2), and one Ge(1) atom. In the third Br site, Br(7) is bonded in a 4-coordinate geometry to one Rb(3), two equivalent Rb(2), and one Ge(2) atom. In the fourth Br site, Br(1) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(2), one Rb(3), and one Ge(2) atom. In the fifth Br site, Br(2) is bonded to one Rb(1), one Rb(2), two equivalent Rb(3), and one Ge(1) atom to form a mixture of distorted corner and face-sharing BrRb4Ge square pyramids. In the sixth Br site, Br(3) is bonded in a 5-coordinate geometry to one Rb(2), one Rb(3), two equivalent Rb(1), and one Ge(2) atom. In the seventh Br site, Br(4) is bonded to one Rb(2), one Rb(3), two equivalent Rb(1), and one Ge(1) atom to form a mixture of distorted corner, edge, and face-sharing BrRb4Ge square pyramids. is represented by the CIF file [CIF]
data_Rb3Ge2Br7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.036
_cell_length_b   10.414
_cell_length_c   13.509
_cell_angle_alpha   78.047
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1794.136
_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  0.823  0.951  0.466  1.0
  Rb  Rb1  1  0.693  0.612  0.308  1.0
  Rb  Rb2  1  0.193  0.388  0.192  1.0
  Rb  Rb3  1  0.307  0.388  0.692  1.0
  Rb  Rb4  1  0.807  0.612  0.808  1.0
  Rb  Rb5  1  0.815  0.275  0.140  1.0
  Rb  Rb6  1  0.315  0.725  0.360  1.0
  Rb  Rb7  1  0.185  0.725  0.860  1.0
  Rb  Rb8  1  0.685  0.275  0.640  1.0
  Rb  Rb9  1  0.677  0.951  0.966  1.0
  Rb  Rb10  1  0.177  0.049  0.534  1.0
  Rb  Rb11  1  0.323  0.049  0.034  1.0
  Ge  Ge12  1  0.951  0.356  0.431  1.0
  Ge  Ge13  1  0.451  0.644  0.069  1.0
  Ge  Ge14  1  0.049  0.644  0.569  1.0
  Ge  Ge15  1  0.549  0.356  0.931  1.0
  Ge  Ge16  1  0.990  0.815  0.145  1.0
  Ge  Ge17  1  0.490  0.185  0.355  1.0
  Ge  Ge18  1  0.010  0.185  0.855  1.0
  Ge  Ge19  1  0.510  0.815  0.645  1.0
  Br  Br20  1  0.559  0.835  0.459  1.0
  Br  Br21  1  0.774  0.278  0.887  1.0
  Br  Br22  1  0.274  0.722  0.613  1.0
  Br  Br23  1  0.226  0.722  0.113  1.0
  Br  Br24  1  0.726  0.278  0.387  1.0
  Br  Br25  1  0.684  0.911  0.699  1.0
  Br  Br26  1  0.184  0.089  0.801  1.0
  Br  Br27  1  0.316  0.089  0.301  1.0
  Br  Br28  1  0.816  0.911  0.199  1.0
  Br  Br29  1  0.005  0.185  0.327  1.0
  Br  Br30  1  0.059  0.165  0.041  1.0
  Br  Br31  1  0.441  0.165  0.541  1.0
  Br  Br32  1  0.059  0.809  0.400  1.0
  Br  Br33  1  0.559  0.191  0.100  1.0
  Br  Br34  1  0.941  0.191  0.600  1.0
  Br  Br35  1  0.441  0.809  0.900  1.0
  Br  Br36  1  0.150  0.415  0.458  1.0
  Br  Br37  1  0.505  0.815  0.173  1.0
  Br  Br38  1  0.995  0.815  0.673  1.0
  Br  Br39  1  0.495  0.185  0.827  1.0
  Br  Br40  1  0.559  0.571  0.698  1.0
  Br  Br41  1  0.650  0.585  0.042  1.0
  Br  Br42  1  0.850  0.585  0.542  1.0
  Br  Br43  1  0.350  0.415  0.958  1.0
  Br  Br44  1  0.941  0.571  0.198  1.0
  Br  Br45  1  0.441  0.429  0.302  1.0
  Br  Br46  1  0.059  0.429  0.802  1.0
  Br  Br47  1  0.941  0.835  0.959  1.0
[/CIF]
.
The compound described by Rb3Ge2Br7 crystallizes in the monoclinic P2_1/c space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 9-coordinate geometry to one Br(1), one Br(2), one Br(6), two equivalent Br(3), two equivalent Br(4), and two equivalent Br(5) atoms. In the second Rb site, Rb(2) is bonded in a 8-coordinate geometry to one Br(1), one Br(2), one Br(3), one Br(4), two equivalent Br(6), and two equivalent Br(7) atoms. In the third Rb site, Rb(3) is bonded in a 8-coordinate geometry to one Br(1), one Br(3), one Br(4), one Br(5), one Br(6), one Br(7), and two equivalent Br(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 3-coordinate geometry to one Br(2), one Br(4), one Br(5), and one Br(6) atom. In the second Ge site, Ge(2) is bonded in a distorted T-shaped geometry to one Br(1), one Br(3), and one Br(7) atom. There are seven inequivalent Br sites. In the first Br site, Br(5) is bonded in a distorted rectangular see-saw-like geometry to one Rb(3), two equivalent Rb(1), and one Ge(1) atom. In the second Br site, Br(6) is bonded in a 5-coordinate geometry to one Rb(1), one Rb(3), two equivalent Rb(2), and one Ge(1) atom. In the third Br site, Br(7) is bonded in a 4-coordinate geometry to one Rb(3), two equivalent Rb(2), and one Ge(2) atom. In the fourth Br site, Br(1) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(2), one Rb(3), and one Ge(2) atom. In the fifth Br site, Br(2) is bonded to one Rb(1), one Rb(2), two equivalent Rb(3), and one Ge(1) atom to form a mixture of distorted corner and face-sharing BrRb4Ge square pyramids. In the sixth Br site, Br(3) is bonded in a 5-coordinate geometry to one Rb(2), one Rb(3), two equivalent Rb(1), and one Ge(2) atom. In the seventh Br site, Br(4) is bonded to one Rb(2), one Rb(3), two equivalent Rb(1), and one Ge(1) atom to form a mixture of distorted corner, edge, and face-sharing BrRb4Ge square pyramids. is represented by the CIF file [CIF]
data_Rb3Ge2Br7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.036
_cell_length_b   10.414
_cell_length_c   13.509
_cell_angle_alpha   78.047
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1794.136
_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  0.823  0.951  0.466  1.0
  Rb  Rb1  1  0.693  0.612  0.308  1.0
  Rb  Rb2  1  0.193  0.388  0.192  1.0
  Rb  Rb3  1  0.307  0.388  0.692  1.0
  Rb  Rb4  1  0.807  0.612  0.808  1.0
  Rb  Rb5  1  0.815  0.275  0.140  1.0
  Rb  Rb6  1  0.315  0.725  0.360  1.0
  Rb  Rb7  1  0.185  0.725  0.860  1.0
  Rb  Rb8  1  0.685  0.275  0.640  1.0
  Rb  Rb9  1  0.677  0.951  0.966  1.0
  Rb  Rb10  1  0.177  0.049  0.534  1.0
  Rb  Rb11  1  0.323  0.049  0.034  1.0
  Ge  Ge12  1  0.951  0.356  0.431  1.0
  Ge  Ge13  1  0.451  0.644  0.069  1.0
  Ge  Ge14  1  0.049  0.644  0.569  1.0
  Ge  Ge15  1  0.549  0.356  0.931  1.0
  Ge  Ge16  1  0.990  0.815  0.145  1.0
  Ge  Ge17  1  0.490  0.185  0.355  1.0
  Ge  Ge18  1  0.010  0.185  0.855  1.0
  Ge  Ge19  1  0.510  0.815  0.645  1.0
  Br  Br20  1  0.559  0.835  0.459  1.0
  Br  Br21  1  0.774  0.278  0.887  1.0
  Br  Br22  1  0.274  0.722  0.613  1.0
  Br  Br23  1  0.226  0.722  0.113  1.0
  Br  Br24  1  0.726  0.278  0.387  1.0
  Br  Br25  1  0.684  0.911  0.699  1.0
  Br  Br26  1  0.184  0.089  0.801  1.0
  Br  Br27  1  0.316  0.089  0.301  1.0
  Br  Br28  1  0.816  0.911  0.199  1.0
  Br  Br29  1  0.005  0.185  0.327  1.0
  Br  Br30  1  0.059  0.165  0.041  1.0
  Br  Br31  1  0.441  0.165  0.541  1.0
  Br  Br32  1  0.059  0.809  0.400  1.0
  Br  Br33  1  0.559  0.191  0.100  1.0
  Br  Br34  1  0.941  0.191  0.600  1.0
  Br  Br35  1  0.441  0.809  0.900  1.0
  Br  Br36  1  0.150  0.415  0.458  1.0
  Br  Br37  1  0.505  0.815  0.173  1.0
  Br  Br38  1  0.995  0.815  0.673  1.0
  Br  Br39  1  0.495  0.185  0.827  1.0
  Br  Br40  1  0.559  0.571  0.698  1.0
  Br  Br41  1  0.650  0.585  0.042  1.0
  Br  Br42  1  0.850  0.585  0.542  1.0
  Br  Br43  1  0.350  0.415  0.958  1.0
  Br  Br44  1  0.941  0.571  0.198  1.0
  Br  Br45  1  0.441  0.429  0.302  1.0
  Br  Br46  1  0.059  0.429  0.802  1.0
  Br  Br47  1  0.941  0.835  0.959  1.0
[/CIF]
.