The structure described by CaGaB2BiO7 crystallizes in the orthorhombic Cmm2 space group. Ca(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), two equivalent O(4), two equivalent O(5), and two equivalent O(6) atoms. Ga(1) is bonded to two equivalent O(5) and two equivalent O(6) atoms to form GaO4 tetrahedra that share corners with two equivalent B(1)O4 tetrahedra and corners with two equivalent B(2)O4 tetrahedra. There are two inequivalent B sites. In the first B site, B(1) is bonded to one O(1), one O(3), and two equivalent O(6) atoms to form BO4 tetrahedra that share  a cornercorner with one B(1)O4 tetrahedra and corners with two equivalent Ga(1)O4 tetrahedra. In the second B site, B(2) is bonded to one O(2), one O(4), and two equivalent O(5) atoms to form BO4 tetrahedra that share  a cornercorner with one B(2)O4 tetrahedra and corners with two equivalent Ga(1)O4 tetrahedra. Bi(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to two equivalent B(1) and two equivalent Bi(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Ca(1) and two equivalent B(2) atoms. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Ca(1), one B(1), and two equivalent Bi(1) atoms. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to two equivalent Ca(1), one B(2), and one Bi(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Ca(1), one Ga(1), one B(2), and one Bi(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Ca(1), one Ga(1), one B(1), and one Bi(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_CaGaBiB2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.486
_cell_length_b   7.486
_cell_length_c   4.833
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.029
_symmetry_Int_Tables_number   1
_cell_volume   270.866
_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
  Ca  Ca0  1  0.663  0.337  0.494  1.0
  Ca  Ca1  1  0.337  0.663  0.494  1.0
  Ga  Ga2  1  0.500  0.000  0.997  1.0
  Ga  Ga3  1  0.000  0.500  0.997  1.0
  Bi  Bi4  1  0.833  0.833  0.501  1.0
  Bi  Bi5  1  0.167  0.167  0.501  1.0
  B  B6  1  0.865  0.135  0.053  1.0
  B  B7  1  0.370  0.370  0.942  1.0
  B  B8  1  0.135  0.865  0.053  1.0
  B  B9  1  0.630  0.630  0.942  1.0
  O  O10  1  0.000  0.000  0.151  1.0
  O  O11  1  0.500  0.500  0.839  1.0
  O  O12  1  0.852  0.148  0.761  1.0
  O  O13  1  0.357  0.357  0.238  1.0
  O  O14  1  0.148  0.852  0.761  1.0
  O  O15  1  0.643  0.643  0.238  1.0
  O  O16  1  0.578  0.806  0.791  1.0
  O  O17  1  0.078  0.694  0.202  1.0
  O  O18  1  0.422  0.194  0.791  1.0
  O  O19  1  0.922  0.306  0.202  1.0
  O  O20  1  0.694  0.078  0.202  1.0
  O  O21  1  0.194  0.422  0.791  1.0
  O  O22  1  0.306  0.922  0.202  1.0
  O  O23  1  0.806  0.578  0.791  1.0
[/CIF]
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The structure described by CaGaB2BiO7 crystallizes in the orthorhombic Cmm2 space group. Ca(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), two equivalent O(4), two equivalent O(5), and two equivalent O(6) atoms. Ga(1) is bonded to two equivalent O(5) and two equivalent O(6) atoms to form GaO4 tetrahedra that share corners with two equivalent B(1)O4 tetrahedra and corners with two equivalent B(2)O4 tetrahedra. There are two inequivalent B sites. In the first B site, B(1) is bonded to one O(1), one O(3), and two equivalent O(6) atoms to form BO4 tetrahedra that share  a cornercorner with one B(1)O4 tetrahedra and corners with two equivalent Ga(1)O4 tetrahedra. In the second B site, B(2) is bonded to one O(2), one O(4), and two equivalent O(5) atoms to form BO4 tetrahedra that share  a cornercorner with one B(2)O4 tetrahedra and corners with two equivalent Ga(1)O4 tetrahedra. Bi(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to two equivalent B(1) and two equivalent Bi(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Ca(1) and two equivalent B(2) atoms. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Ca(1), one B(1), and two equivalent Bi(1) atoms. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to two equivalent Ca(1), one B(2), and one Bi(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Ca(1), one Ga(1), one B(2), and one Bi(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Ca(1), one Ga(1), one B(1), and one Bi(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_CaGaBiB2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.486
_cell_length_b   7.486
_cell_length_c   4.833
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.029
_symmetry_Int_Tables_number   1
_cell_volume   270.866
_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
  Ca  Ca0  1  0.663  0.337  0.494  1.0
  Ca  Ca1  1  0.337  0.663  0.494  1.0
  Ga  Ga2  1  0.500  0.000  0.997  1.0
  Ga  Ga3  1  0.000  0.500  0.997  1.0
  Bi  Bi4  1  0.833  0.833  0.501  1.0
  Bi  Bi5  1  0.167  0.167  0.501  1.0
  B  B6  1  0.865  0.135  0.053  1.0
  B  B7  1  0.370  0.370  0.942  1.0
  B  B8  1  0.135  0.865  0.053  1.0
  B  B9  1  0.630  0.630  0.942  1.0
  O  O10  1  0.000  0.000  0.151  1.0
  O  O11  1  0.500  0.500  0.839  1.0
  O  O12  1  0.852  0.148  0.761  1.0
  O  O13  1  0.357  0.357  0.238  1.0
  O  O14  1  0.148  0.852  0.761  1.0
  O  O15  1  0.643  0.643  0.238  1.0
  O  O16  1  0.578  0.806  0.791  1.0
  O  O17  1  0.078  0.694  0.202  1.0
  O  O18  1  0.422  0.194  0.791  1.0
  O  O19  1  0.922  0.306  0.202  1.0
  O  O20  1  0.694  0.078  0.202  1.0
  O  O21  1  0.194  0.422  0.791  1.0
  O  O22  1  0.306  0.922  0.202  1.0
  O  O23  1  0.806  0.578  0.791  1.0
[/CIF]
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