The structure described by Ba3Ge4 is Magnesium tetraboride-like structured and crystallizes in the tetragonal P4_2/mnm space group. There are three inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 8-coordinate geometry to four equivalent Ge(1) and four equivalent Ge(2) atoms. In the second Ba site, Ba(2) is bonded in a 8-coordinate geometry to four equivalent Ge(1) and four equivalent Ge(2) atoms. In the third Ba site, Ba(3) is bonded in a 8-coordinate geometry to four equivalent Ge(1) and four equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to two equivalent Ba(1), two equivalent Ba(2), two equivalent Ba(3), and two equivalent Ge(2) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Ba(1), two equivalent Ba(2), two equivalent Ba(3), one Ge(2), and two equivalent Ge(1) atoms. is represented by the CIF file [CIF]
data_Ba3Ge4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.678
_cell_length_b   8.678
_cell_length_c   12.256
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   922.953
_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
  Ba  Ba0  1  0.500  0.000  0.750  1.0
  Ba  Ba1  1  0.500  0.000  0.250  1.0
  Ba  Ba2  1  0.000  0.500  0.750  1.0
  Ba  Ba3  1  0.000  0.500  0.250  1.0
  Ba  Ba4  1  0.000  0.000  0.670  1.0
  Ba  Ba5  1  0.500  0.500  0.170  1.0
  Ba  Ba6  1  0.500  0.500  0.830  1.0
  Ba  Ba7  1  0.000  0.000  0.330  1.0
  Ba  Ba8  1  0.162  0.838  0.000  1.0
  Ba  Ba9  1  0.662  0.662  0.500  1.0
  Ba  Ba10  1  0.338  0.338  0.500  1.0
  Ba  Ba11  1  0.838  0.162  0.000  1.0
  Ge  Ge12  1  0.803  0.803  0.852  1.0
  Ge  Ge13  1  0.197  0.197  0.852  1.0
  Ge  Ge14  1  0.803  0.803  0.148  1.0
  Ge  Ge15  1  0.303  0.697  0.352  1.0
  Ge  Ge16  1  0.697  0.303  0.352  1.0
  Ge  Ge17  1  0.697  0.303  0.648  1.0
  Ge  Ge18  1  0.303  0.697  0.648  1.0
  Ge  Ge19  1  0.197  0.197  0.148  1.0
  Ge  Ge20  1  0.804  0.589  0.000  1.0
  Ge  Ge21  1  0.196  0.411  0.000  1.0
  Ge  Ge22  1  0.589  0.804  0.000  1.0
  Ge  Ge23  1  0.089  0.696  0.500  1.0
  Ge  Ge24  1  0.411  0.196  0.000  1.0
  Ge  Ge25  1  0.304  0.911  0.500  1.0
  Ge  Ge26  1  0.696  0.089  0.500  1.0
  Ge  Ge27  1  0.911  0.304  0.500  1.0
[/CIF]
.
The structure described by Ba3Ge4 is Magnesium tetraboride-like structured and crystallizes in the tetragonal P4_2/mnm space group. There are three inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 8-coordinate geometry to four equivalent Ge(1) and four equivalent Ge(2) atoms. In the second Ba site, Ba(2) is bonded in a 8-coordinate geometry to four equivalent Ge(1) and four equivalent Ge(2) atoms. In the third Ba site, Ba(3) is bonded in a 8-coordinate geometry to four equivalent Ge(1) and four equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to two equivalent Ba(1), two equivalent Ba(2), two equivalent Ba(3), and two equivalent Ge(2) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Ba(1), two equivalent Ba(2), two equivalent Ba(3), one Ge(2), and two equivalent Ge(1) atoms. is represented by the CIF file [CIF]
data_Ba3Ge4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.678
_cell_length_b   8.678
_cell_length_c   12.256
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   922.953
_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
  Ba  Ba0  1  0.500  0.000  0.750  1.0
  Ba  Ba1  1  0.500  0.000  0.250  1.0
  Ba  Ba2  1  0.000  0.500  0.750  1.0
  Ba  Ba3  1  0.000  0.500  0.250  1.0
  Ba  Ba4  1  0.000  0.000  0.670  1.0
  Ba  Ba5  1  0.500  0.500  0.170  1.0
  Ba  Ba6  1  0.500  0.500  0.830  1.0
  Ba  Ba7  1  0.000  0.000  0.330  1.0
  Ba  Ba8  1  0.162  0.838  0.000  1.0
  Ba  Ba9  1  0.662  0.662  0.500  1.0
  Ba  Ba10  1  0.338  0.338  0.500  1.0
  Ba  Ba11  1  0.838  0.162  0.000  1.0
  Ge  Ge12  1  0.803  0.803  0.852  1.0
  Ge  Ge13  1  0.197  0.197  0.852  1.0
  Ge  Ge14  1  0.803  0.803  0.148  1.0
  Ge  Ge15  1  0.303  0.697  0.352  1.0
  Ge  Ge16  1  0.697  0.303  0.352  1.0
  Ge  Ge17  1  0.697  0.303  0.648  1.0
  Ge  Ge18  1  0.303  0.697  0.648  1.0
  Ge  Ge19  1  0.197  0.197  0.148  1.0
  Ge  Ge20  1  0.804  0.589  0.000  1.0
  Ge  Ge21  1  0.196  0.411  0.000  1.0
  Ge  Ge22  1  0.589  0.804  0.000  1.0
  Ge  Ge23  1  0.089  0.696  0.500  1.0
  Ge  Ge24  1  0.411  0.196  0.000  1.0
  Ge  Ge25  1  0.304  0.911  0.500  1.0
  Ge  Ge26  1  0.696  0.089  0.500  1.0
  Ge  Ge27  1  0.911  0.304  0.500  1.0
[/CIF]
.