The crystal structure described by BaCa(GaO2)4 crystallizes in the orthorhombic Imm2 space group. Ba(1) is bonded in a 10-coordinate geometry to two equivalent O(3), four equivalent O(1), and four equivalent O(2) atoms. Ca(1) is bonded in a 6-coordinate geometry to two equivalent O(3) and four equivalent O(1) atoms. Ga(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form corner-sharing GaO4 tetrahedra. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Ba(1), one Ca(1), and two equivalent Ga(1) atoms. In the second O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Ba(1) and two equivalent Ga(1) atoms. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Ba(1), one Ca(1), and two equivalent Ga(1) atoms. is represented by the CIF card [CIF]
data_BaCa(GaO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.770
_cell_length_b   6.770
_cell_length_c   6.770
_cell_angle_alpha   134.467
_cell_angle_beta   103.993
_cell_angle_gamma   93.308
_symmetry_Int_Tables_number   1
_cell_volume   202.954
_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
  Ba  Ba0  1  0.000  0.005  0.005  1.0
  Ca  Ca1  1  0.500  0.932  0.432  1.0
  Ga  Ga2  1  0.876  0.627  0.169  1.0
  Ga  Ga3  1  0.542  0.294  0.169  1.0
  Ga  Ga4  1  0.124  0.294  0.752  1.0
  Ga  Ga5  1  0.458  0.627  0.752  1.0
  O  O6  1  0.460  0.269  0.398  1.0
  O  O7  1  0.540  0.938  0.809  1.0
  O  O8  1  0.809  0.574  0.383  1.0
  O  O9  1  0.191  0.574  0.765  1.0
  O  O10  1  0.129  0.938  0.398  1.0
  O  O11  1  0.871  0.269  0.809  1.0
  O  O12  1  0.329  0.418  0.089  1.0
  O  O13  1  0.671  0.759  0.089  1.0
[/CIF]
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The crystal structure described by BaCa(GaO2)4 crystallizes in the orthorhombic Imm2 space group. Ba(1) is bonded in a 10-coordinate geometry to two equivalent O(3), four equivalent O(1), and four equivalent O(2) atoms. Ca(1) is bonded in a 6-coordinate geometry to two equivalent O(3) and four equivalent O(1) atoms. Ga(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form corner-sharing GaO4 tetrahedra. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Ba(1), one Ca(1), and two equivalent Ga(1) atoms. In the second O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Ba(1) and two equivalent Ga(1) atoms. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Ba(1), one Ca(1), and two equivalent Ga(1) atoms. is represented by the CIF card [CIF]
data_BaCa(GaO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.770
_cell_length_b   6.770
_cell_length_c   6.770
_cell_angle_alpha   134.467
_cell_angle_beta   103.993
_cell_angle_gamma   93.308
_symmetry_Int_Tables_number   1
_cell_volume   202.954
_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
  Ba  Ba0  1  0.000  0.005  0.005  1.0
  Ca  Ca1  1  0.500  0.932  0.432  1.0
  Ga  Ga2  1  0.876  0.627  0.169  1.0
  Ga  Ga3  1  0.542  0.294  0.169  1.0
  Ga  Ga4  1  0.124  0.294  0.752  1.0
  Ga  Ga5  1  0.458  0.627  0.752  1.0
  O  O6  1  0.460  0.269  0.398  1.0
  O  O7  1  0.540  0.938  0.809  1.0
  O  O8  1  0.809  0.574  0.383  1.0
  O  O9  1  0.191  0.574  0.765  1.0
  O  O10  1  0.129  0.938  0.398  1.0
  O  O11  1  0.871  0.269  0.809  1.0
  O  O12  1  0.329  0.418  0.089  1.0
  O  O13  1  0.671  0.759  0.089  1.0
[/CIF]
.