The material structure described by Ge19As4(Br)4 crystallizes in the cubic P-43n space group. The structure consists of eight hydrogen bromide atoms inside a Ge19As4 framework. In the Ge19As4 framework, there are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to three equivalent Ge(2) and one As(1) atom to form GeGe3As tetrahedra that share corners with three equivalent Ge(3)Ge4 tetrahedra, corners with three equivalent As(1)Ge4 tetrahedra, and corners with six equivalent Ge(2)Ge3As tetrahedra. In the second Ge site, Ge(2) is bonded to one Ge(1), one Ge(2), one Ge(3), and one As(1) atom to form GeGe3As tetrahedra that share  a cornercorner with one Ge(3)Ge4 tetrahedra, corners with two equivalent Ge(1)Ge3As tetrahedra, corners with two equivalent As(1)Ge4 tetrahedra, and corners with seven equivalent Ge(2)Ge3As tetrahedra. In the third Ge site, Ge(3) is bonded to four equivalent Ge(2) atoms to form GeGe4 tetrahedra that share corners with four equivalent Ge(1)Ge3As tetrahedra, corners with four equivalent Ge(2)Ge3As tetrahedra, and corners with four equivalent As(1)Ge4 tetrahedra. As(1) is bonded to one Ge(1) and three equivalent Ge(2) atoms to form AsGe4 tetrahedra that share corners with three equivalent Ge(1)Ge3As tetrahedra, corners with three equivalent Ge(3)Ge4 tetrahedra, and corners with six equivalent Ge(2)Ge3As tetrahedra. is represented by the CIF file [CIF]
data_Ge19(AsBr)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.721
_cell_length_b   10.721
_cell_length_c   10.721
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1232.315
_cell_formula_units_Z   2
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
  Ge  Ge0  1  0.318  0.318  0.318  1.0
  Ge  Ge1  1  0.682  0.682  0.318  1.0
  Ge  Ge2  1  0.682  0.318  0.682  1.0
  Ge  Ge3  1  0.818  0.818  0.818  1.0
  Ge  Ge4  1  0.318  0.682  0.682  1.0
  Ge  Ge5  1  0.182  0.182  0.818  1.0
  Ge  Ge6  1  0.818  0.182  0.182  1.0
  Ge  Ge7  1  0.182  0.818  0.182  1.0
  Ge  Ge8  1  0.998  0.117  0.310  1.0
  Ge  Ge9  1  0.002  0.883  0.310  1.0
  Ge  Ge10  1  0.002  0.117  0.690  1.0
  Ge  Ge11  1  0.310  0.998  0.117  1.0
  Ge  Ge12  1  0.617  0.498  0.810  1.0
  Ge  Ge13  1  0.998  0.883  0.690  1.0
  Ge  Ge14  1  0.310  0.002  0.883  1.0
  Ge  Ge15  1  0.383  0.502  0.810  1.0
  Ge  Ge16  1  0.690  0.002  0.117  1.0
  Ge  Ge17  1  0.617  0.502  0.190  1.0
  Ge  Ge18  1  0.690  0.998  0.883  1.0
  Ge  Ge19  1  0.383  0.498  0.190  1.0
  Ge  Ge20  1  0.117  0.310  0.998  1.0
  Ge  Ge21  1  0.498  0.810  0.617  1.0
  Ge  Ge22  1  0.117  0.690  0.002  1.0
  Ge  Ge23  1  0.502  0.190  0.617  1.0
  Ge  Ge24  1  0.883  0.690  0.998  1.0
  Ge  Ge25  1  0.498  0.190  0.383  1.0
  Ge  Ge26  1  0.883  0.310  0.002  1.0
  Ge  Ge27  1  0.502  0.810  0.383  1.0
  Ge  Ge28  1  0.810  0.617  0.498  1.0
  Ge  Ge29  1  0.810  0.383  0.502  1.0
  Ge  Ge30  1  0.190  0.383  0.498  1.0
  Ge  Ge31  1  0.190  0.617  0.502  1.0
  Ge  Ge32  1  0.250  0.500  0.000  1.0
  Ge  Ge33  1  0.750  0.500  0.000  1.0
  Ge  Ge34  1  0.000  0.250  0.500  1.0
  Ge  Ge35  1  0.000  0.750  0.500  1.0
  Ge  Ge36  1  0.500  0.000  0.250  1.0
  Ge  Ge37  1  0.500  0.000  0.750  1.0
  As  As38  1  0.184  0.184  0.184  1.0
  As  As39  1  0.816  0.816  0.184  1.0
  As  As40  1  0.816  0.184  0.816  1.0
  As  As41  1  0.684  0.684  0.684  1.0
  As  As42  1  0.184  0.816  0.816  1.0
  As  As43  1  0.316  0.316  0.684  1.0
  As  As44  1  0.684  0.316  0.316  1.0
  As  As45  1  0.316  0.684  0.316  1.0
  Br  Br46  1  0.250  0.000  0.500  1.0
  Br  Br47  1  0.750  0.000  0.500  1.0
  Br  Br48  1  0.500  0.250  0.000  1.0
  Br  Br49  1  0.500  0.750  0.000  1.0
  Br  Br50  1  0.000  0.500  0.250  1.0
  Br  Br51  1  0.000  0.500  0.750  1.0
  Br  Br52  1  0.000  0.000  0.000  1.0
  Br  Br53  1  0.500  0.500  0.500  1.0
[/CIF]
.
The material structure described by Ge19As4(Br)4 crystallizes in the cubic P-43n space group. The structure consists of eight hydrogen bromide atoms inside a Ge19As4 framework. In the Ge19As4 framework, there are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to three equivalent Ge(2) and one As(1) atom to form GeGe3As tetrahedra that share corners with three equivalent Ge(3)Ge4 tetrahedra, corners with three equivalent As(1)Ge4 tetrahedra, and corners with six equivalent Ge(2)Ge3As tetrahedra. In the second Ge site, Ge(2) is bonded to one Ge(1), one Ge(2), one Ge(3), and one As(1) atom to form GeGe3As tetrahedra that share  a cornercorner with one Ge(3)Ge4 tetrahedra, corners with two equivalent Ge(1)Ge3As tetrahedra, corners with two equivalent As(1)Ge4 tetrahedra, and corners with seven equivalent Ge(2)Ge3As tetrahedra. In the third Ge site, Ge(3) is bonded to four equivalent Ge(2) atoms to form GeGe4 tetrahedra that share corners with four equivalent Ge(1)Ge3As tetrahedra, corners with four equivalent Ge(2)Ge3As tetrahedra, and corners with four equivalent As(1)Ge4 tetrahedra. As(1) is bonded to one Ge(1) and three equivalent Ge(2) atoms to form AsGe4 tetrahedra that share corners with three equivalent Ge(1)Ge3As tetrahedra, corners with three equivalent Ge(3)Ge4 tetrahedra, and corners with six equivalent Ge(2)Ge3As tetrahedra. is represented by the CIF file [CIF]
data_Ge19(AsBr)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.721
_cell_length_b   10.721
_cell_length_c   10.721
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1232.315
_cell_formula_units_Z   2
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
  Ge  Ge0  1  0.318  0.318  0.318  1.0
  Ge  Ge1  1  0.682  0.682  0.318  1.0
  Ge  Ge2  1  0.682  0.318  0.682  1.0
  Ge  Ge3  1  0.818  0.818  0.818  1.0
  Ge  Ge4  1  0.318  0.682  0.682  1.0
  Ge  Ge5  1  0.182  0.182  0.818  1.0
  Ge  Ge6  1  0.818  0.182  0.182  1.0
  Ge  Ge7  1  0.182  0.818  0.182  1.0
  Ge  Ge8  1  0.998  0.117  0.310  1.0
  Ge  Ge9  1  0.002  0.883  0.310  1.0
  Ge  Ge10  1  0.002  0.117  0.690  1.0
  Ge  Ge11  1  0.310  0.998  0.117  1.0
  Ge  Ge12  1  0.617  0.498  0.810  1.0
  Ge  Ge13  1  0.998  0.883  0.690  1.0
  Ge  Ge14  1  0.310  0.002  0.883  1.0
  Ge  Ge15  1  0.383  0.502  0.810  1.0
  Ge  Ge16  1  0.690  0.002  0.117  1.0
  Ge  Ge17  1  0.617  0.502  0.190  1.0
  Ge  Ge18  1  0.690  0.998  0.883  1.0
  Ge  Ge19  1  0.383  0.498  0.190  1.0
  Ge  Ge20  1  0.117  0.310  0.998  1.0
  Ge  Ge21  1  0.498  0.810  0.617  1.0
  Ge  Ge22  1  0.117  0.690  0.002  1.0
  Ge  Ge23  1  0.502  0.190  0.617  1.0
  Ge  Ge24  1  0.883  0.690  0.998  1.0
  Ge  Ge25  1  0.498  0.190  0.383  1.0
  Ge  Ge26  1  0.883  0.310  0.002  1.0
  Ge  Ge27  1  0.502  0.810  0.383  1.0
  Ge  Ge28  1  0.810  0.617  0.498  1.0
  Ge  Ge29  1  0.810  0.383  0.502  1.0
  Ge  Ge30  1  0.190  0.383  0.498  1.0
  Ge  Ge31  1  0.190  0.617  0.502  1.0
  Ge  Ge32  1  0.250  0.500  0.000  1.0
  Ge  Ge33  1  0.750  0.500  0.000  1.0
  Ge  Ge34  1  0.000  0.250  0.500  1.0
  Ge  Ge35  1  0.000  0.750  0.500  1.0
  Ge  Ge36  1  0.500  0.000  0.250  1.0
  Ge  Ge37  1  0.500  0.000  0.750  1.0
  As  As38  1  0.184  0.184  0.184  1.0
  As  As39  1  0.816  0.816  0.184  1.0
  As  As40  1  0.816  0.184  0.816  1.0
  As  As41  1  0.684  0.684  0.684  1.0
  As  As42  1  0.184  0.816  0.816  1.0
  As  As43  1  0.316  0.316  0.684  1.0
  As  As44  1  0.684  0.316  0.316  1.0
  As  As45  1  0.316  0.684  0.316  1.0
  Br  Br46  1  0.250  0.000  0.500  1.0
  Br  Br47  1  0.750  0.000  0.500  1.0
  Br  Br48  1  0.500  0.250  0.000  1.0
  Br  Br49  1  0.500  0.750  0.000  1.0
  Br  Br50  1  0.000  0.500  0.250  1.0
  Br  Br51  1  0.000  0.500  0.750  1.0
  Br  Br52  1  0.000  0.000  0.000  1.0
  Br  Br53  1  0.500  0.500  0.500  1.0
[/CIF]
.