The material described by KGeBr3 is (Cubic) Perovskite structured and crystallizes in the monoclinic Cm space group. K(1) is bonded in a 12-coordinate geometry to four equivalent Br(2) and eight equivalent Br(1) atoms. Ge(1) is bonded to two equivalent Br(2) and four equivalent Br(1) atoms to form corner-sharing GeBr6 octahedra. The corner-sharing octahedral tilt angles range from 6-9°. There are two inequivalent Br sites. In the first Br site, Br(1) is bonded in a 2-coordinate geometry to four equivalent K(1) and two equivalent Ge(1) atoms. In the second Br site, Br(2) is bonded in a distorted linear geometry to four equivalent K(1) and two equivalent Ge(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_KGeBr3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.605
_cell_length_b   5.605
_cell_length_c   5.592
_cell_angle_alpha   89.032
_cell_angle_beta   89.032
_cell_angle_gamma   89.240
_symmetry_Int_Tables_number   1
_cell_volume   175.641
_cell_formula_units_Z   1
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
  K  K0  1  0.002  0.002  0.001  1.0
  Ge  Ge1  1  0.522  0.522  0.533  1.0
  Br  Br2  1  0.985  0.502  0.514  1.0
  Br  Br3  1  0.494  0.494  0.001  1.0
  Br  Br4  1  0.502  0.985  0.514  1.0
[/CIF]
.
The material described by KGeBr3 is (Cubic) Perovskite structured and crystallizes in the monoclinic Cm space group. K(1) is bonded in a 12-coordinate geometry to four equivalent Br(2) and eight equivalent Br(1) atoms. Ge(1) is bonded to two equivalent Br(2) and four equivalent Br(1) atoms to form corner-sharing GeBr6 octahedra. The corner-sharing octahedral tilt angles range from 6-9°. There are two inequivalent Br sites. In the first Br site, Br(1) is bonded in a 2-coordinate geometry to four equivalent K(1) and two equivalent Ge(1) atoms. In the second Br site, Br(2) is bonded in a distorted linear geometry to four equivalent K(1) and two equivalent Ge(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_KGeBr3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.605
_cell_length_b   5.605
_cell_length_c   5.592
_cell_angle_alpha   89.032
_cell_angle_beta   89.032
_cell_angle_gamma   89.240
_symmetry_Int_Tables_number   1
_cell_volume   175.641
_cell_formula_units_Z   1
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
  K  K0  1  0.002  0.002  0.001  1.0
  Ge  Ge1  1  0.522  0.522  0.533  1.0
  Br  Br2  1  0.985  0.502  0.514  1.0
  Br  Br3  1  0.494  0.494  0.001  1.0
  Br  Br4  1  0.502  0.985  0.514  1.0
[/CIF]
.