The material structure described by Cs2AgGaBr6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. Cs(1) is bonded to twelve equivalent Br(1) atoms to form CsBr12 cuboctahedra that share corners with twelve equivalent Cs(1)Br12 cuboctahedra, faces with six equivalent Cs(1)Br12 cuboctahedra, faces with four equivalent Ag(1)Br6 octahedra, and faces with four equivalent Ga(1)Br6 octahedra. Ag(1) is bonded to six equivalent Br(1) atoms to form AgBr6 octahedra that share corners with six equivalent Ga(1)Br6 octahedra and faces with eight equivalent Cs(1)Br12 cuboctahedra. The corner-sharing octahedra are not tilted. Ga(1) is bonded to six equivalent Br(1) atoms to form GaBr6 octahedra that share corners with six equivalent Ag(1)Br6 octahedra and faces with eight equivalent Cs(1)Br12 cuboctahedra. The corner-sharing octahedra are not tilted. Br(1) is bonded to four equivalent Cs(1), one Ag(1), and one Ga(1) atom to form a mixture of distorted corner, edge, and face-sharing BrCs4GaAg octahedra. The corner-sharing octahedral tilt angles range from 0-60°. is represented by the CIF card [CIF]
data_Cs2GaAgBr6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.769
_cell_length_b   7.769
_cell_length_c   7.769
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   331.632
_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
  Cs  Cs0  1  0.750  0.750  0.750  1.0
  Cs  Cs1  1  0.250  0.250  0.250  1.0
  Ga  Ga2  1  0.000  0.000  0.000  1.0
  Ag  Ag3  1  0.500  0.500  0.500  1.0
  Br  Br4  1  0.763  0.237  0.237  1.0
  Br  Br5  1  0.237  0.237  0.763  1.0
  Br  Br6  1  0.237  0.763  0.763  1.0
  Br  Br7  1  0.237  0.763  0.237  1.0
  Br  Br8  1  0.763  0.237  0.763  1.0
  Br  Br9  1  0.763  0.763  0.237  1.0
[/CIF]
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The material structure described by Cs2AgGaBr6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. Cs(1) is bonded to twelve equivalent Br(1) atoms to form CsBr12 cuboctahedra that share corners with twelve equivalent Cs(1)Br12 cuboctahedra, faces with six equivalent Cs(1)Br12 cuboctahedra, faces with four equivalent Ag(1)Br6 octahedra, and faces with four equivalent Ga(1)Br6 octahedra. Ag(1) is bonded to six equivalent Br(1) atoms to form AgBr6 octahedra that share corners with six equivalent Ga(1)Br6 octahedra and faces with eight equivalent Cs(1)Br12 cuboctahedra. The corner-sharing octahedra are not tilted. Ga(1) is bonded to six equivalent Br(1) atoms to form GaBr6 octahedra that share corners with six equivalent Ag(1)Br6 octahedra and faces with eight equivalent Cs(1)Br12 cuboctahedra. The corner-sharing octahedra are not tilted. Br(1) is bonded to four equivalent Cs(1), one Ag(1), and one Ga(1) atom to form a mixture of distorted corner, edge, and face-sharing BrCs4GaAg octahedra. The corner-sharing octahedral tilt angles range from 0-60°. is represented by the CIF card [CIF]
data_Cs2GaAgBr6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.769
_cell_length_b   7.769
_cell_length_c   7.769
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   331.632
_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
  Cs  Cs0  1  0.750  0.750  0.750  1.0
  Cs  Cs1  1  0.250  0.250  0.250  1.0
  Ga  Ga2  1  0.000  0.000  0.000  1.0
  Ag  Ag3  1  0.500  0.500  0.500  1.0
  Br  Br4  1  0.763  0.237  0.237  1.0
  Br  Br5  1  0.237  0.237  0.763  1.0
  Br  Br6  1  0.237  0.763  0.763  1.0
  Br  Br7  1  0.237  0.763  0.237  1.0
  Br  Br8  1  0.763  0.237  0.763  1.0
  Br  Br9  1  0.763  0.763  0.237  1.0
[/CIF]
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