The compound described by Cs2Ga2B2O7 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 9-coordinate geometry to one O(5), one O(6), one O(7), two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms. In the second Cs site, Cs(2) is bonded in a 12-coordinate geometry to one B(2), two equivalent B(1), one O(3), one O(5), two equivalent O(6), two equivalent O(7), and three equivalent O(2) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(2), one O(4), one O(5), and one O(7) atom to form corner-sharing GaO4 tetrahedra. In the second Ga site, Ga(2) is bonded to one O(1), one O(3), one O(6), and one O(7) atom to form corner-sharing GaO4 tetrahedra. There are two inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to two equivalent Cs(2), one O(2), one O(3), and one O(4) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one Cs(2), one O(1), one O(5), and one O(6) atom. There are seven inequivalent O sites. In the first O site, O(7) is bonded in a 2-coordinate geometry to one Cs(1), two equivalent Cs(2), one Ga(1), and one Ga(2) atom. In the second O site, O(1) is bonded in a distorted bent 120 degrees geometry to two equivalent Cs(1), one Ga(2), and one B(2) atom. In the third O site, O(2) is bonded in a distorted bent 120 degrees geometry to three equivalent Cs(2), one Ga(1), and one B(1) atom. In the fourth O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Cs(2), two equivalent Cs(1), one Ga(2), and one B(1) atom. In the fifth O site, O(4) is bonded in a distorted bent 150 degrees geometry to two equivalent Cs(1), one Ga(1), and one B(1) atom. In the sixth O site, O(5) is bonded in a 2-coordinate geometry to one Cs(1), one Cs(2), one Ga(1), and one B(2) atom. In the seventh O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Cs(1), two equivalent Cs(2), one Ga(2), and one B(2) atom. is represented by the CIF file [CIF]
data_Cs2Ga2B2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.144
_cell_length_b   9.022
_cell_length_c   12.406
_cell_angle_alpha   76.080
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   884.715
_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
  Cs  Cs0  1  0.624  0.534  0.869  1.0
  Cs  Cs1  1  0.379  0.932  0.653  1.0
  Cs  Cs2  1  0.121  0.932  0.153  1.0
  Cs  Cs3  1  0.876  0.534  0.369  1.0
  Cs  Cs4  1  0.621  0.068  0.347  1.0
  Cs  Cs5  1  0.376  0.466  0.131  1.0
  Cs  Cs6  1  0.879  0.068  0.847  1.0
  Cs  Cs7  1  0.124  0.466  0.631  1.0
  Ga  Ga8  1  0.111  0.161  0.387  1.0
  Ga  Ga9  1  0.611  0.839  0.113  1.0
  Ga  Ga10  1  0.436  0.686  0.369  1.0
  Ga  Ga11  1  0.564  0.314  0.631  1.0
  Ga  Ga12  1  0.389  0.161  0.887  1.0
  Ga  Ga13  1  0.064  0.686  0.869  1.0
  Ga  Ga14  1  0.889  0.839  0.613  1.0
  Ga  Ga15  1  0.936  0.314  0.131  1.0
  B  B16  1  0.643  0.169  0.064  1.0
  B  B17  1  0.857  0.169  0.564  1.0
  B  B18  1  0.609  0.648  0.578  1.0
  B  B19  1  0.357  0.831  0.936  1.0
  B  B20  1  0.143  0.831  0.436  1.0
  B  B21  1  0.391  0.352  0.422  1.0
  B  B22  1  0.109  0.352  0.922  1.0
  B  B23  1  0.891  0.648  0.078  1.0
  O  O24  1  0.483  0.482  0.377  1.0
  O  O25  1  0.219  0.972  0.407  1.0
  O  O26  1  0.218  0.704  0.411  1.0
  O  O27  1  0.991  0.807  0.486  1.0
  O  O28  1  0.273  0.309  0.355  1.0
  O  O29  1  0.491  0.193  0.014  1.0
  O  O30  1  0.421  0.261  0.527  1.0
  O  O31  1  0.281  0.972  0.907  1.0
  O  O32  1  0.468  0.812  0.231  1.0
  O  O33  1  0.517  0.518  0.623  1.0
  O  O34  1  0.017  0.482  0.877  1.0
  O  O35  1  0.009  0.193  0.514  1.0
  O  O36  1  0.079  0.261  0.027  1.0
  O  O37  1  0.579  0.739  0.473  1.0
  O  O38  1  0.509  0.807  0.986  1.0
  O  O39  1  0.781  0.028  0.593  1.0
  O  O40  1  0.227  0.309  0.855  1.0
  O  O41  1  0.532  0.188  0.769  1.0
  O  O42  1  0.983  0.518  0.123  1.0
  O  O43  1  0.921  0.739  0.973  1.0
  O  O44  1  0.719  0.028  0.093  1.0
  O  O45  1  0.968  0.188  0.269  1.0
  O  O46  1  0.782  0.296  0.589  1.0
  O  O47  1  0.032  0.812  0.731  1.0
  O  O48  1  0.282  0.704  0.911  1.0
  O  O49  1  0.718  0.296  0.089  1.0
  O  O50  1  0.773  0.691  0.145  1.0
  O  O51  1  0.727  0.691  0.645  1.0
[/CIF]
.
The compound described by Cs2Ga2B2O7 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 9-coordinate geometry to one O(5), one O(6), one O(7), two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms. In the second Cs site, Cs(2) is bonded in a 12-coordinate geometry to one B(2), two equivalent B(1), one O(3), one O(5), two equivalent O(6), two equivalent O(7), and three equivalent O(2) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(2), one O(4), one O(5), and one O(7) atom to form corner-sharing GaO4 tetrahedra. In the second Ga site, Ga(2) is bonded to one O(1), one O(3), one O(6), and one O(7) atom to form corner-sharing GaO4 tetrahedra. There are two inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to two equivalent Cs(2), one O(2), one O(3), and one O(4) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one Cs(2), one O(1), one O(5), and one O(6) atom. There are seven inequivalent O sites. In the first O site, O(7) is bonded in a 2-coordinate geometry to one Cs(1), two equivalent Cs(2), one Ga(1), and one Ga(2) atom. In the second O site, O(1) is bonded in a distorted bent 120 degrees geometry to two equivalent Cs(1), one Ga(2), and one B(2) atom. In the third O site, O(2) is bonded in a distorted bent 120 degrees geometry to three equivalent Cs(2), one Ga(1), and one B(1) atom. In the fourth O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Cs(2), two equivalent Cs(1), one Ga(2), and one B(1) atom. In the fifth O site, O(4) is bonded in a distorted bent 150 degrees geometry to two equivalent Cs(1), one Ga(1), and one B(1) atom. In the sixth O site, O(5) is bonded in a 2-coordinate geometry to one Cs(1), one Cs(2), one Ga(1), and one B(2) atom. In the seventh O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Cs(1), two equivalent Cs(2), one Ga(2), and one B(2) atom. is represented by the CIF file [CIF]
data_Cs2Ga2B2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.144
_cell_length_b   9.022
_cell_length_c   12.406
_cell_angle_alpha   76.080
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   884.715
_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
  Cs  Cs0  1  0.624  0.534  0.869  1.0
  Cs  Cs1  1  0.379  0.932  0.653  1.0
  Cs  Cs2  1  0.121  0.932  0.153  1.0
  Cs  Cs3  1  0.876  0.534  0.369  1.0
  Cs  Cs4  1  0.621  0.068  0.347  1.0
  Cs  Cs5  1  0.376  0.466  0.131  1.0
  Cs  Cs6  1  0.879  0.068  0.847  1.0
  Cs  Cs7  1  0.124  0.466  0.631  1.0
  Ga  Ga8  1  0.111  0.161  0.387  1.0
  Ga  Ga9  1  0.611  0.839  0.113  1.0
  Ga  Ga10  1  0.436  0.686  0.369  1.0
  Ga  Ga11  1  0.564  0.314  0.631  1.0
  Ga  Ga12  1  0.389  0.161  0.887  1.0
  Ga  Ga13  1  0.064  0.686  0.869  1.0
  Ga  Ga14  1  0.889  0.839  0.613  1.0
  Ga  Ga15  1  0.936  0.314  0.131  1.0
  B  B16  1  0.643  0.169  0.064  1.0
  B  B17  1  0.857  0.169  0.564  1.0
  B  B18  1  0.609  0.648  0.578  1.0
  B  B19  1  0.357  0.831  0.936  1.0
  B  B20  1  0.143  0.831  0.436  1.0
  B  B21  1  0.391  0.352  0.422  1.0
  B  B22  1  0.109  0.352  0.922  1.0
  B  B23  1  0.891  0.648  0.078  1.0
  O  O24  1  0.483  0.482  0.377  1.0
  O  O25  1  0.219  0.972  0.407  1.0
  O  O26  1  0.218  0.704  0.411  1.0
  O  O27  1  0.991  0.807  0.486  1.0
  O  O28  1  0.273  0.309  0.355  1.0
  O  O29  1  0.491  0.193  0.014  1.0
  O  O30  1  0.421  0.261  0.527  1.0
  O  O31  1  0.281  0.972  0.907  1.0
  O  O32  1  0.468  0.812  0.231  1.0
  O  O33  1  0.517  0.518  0.623  1.0
  O  O34  1  0.017  0.482  0.877  1.0
  O  O35  1  0.009  0.193  0.514  1.0
  O  O36  1  0.079  0.261  0.027  1.0
  O  O37  1  0.579  0.739  0.473  1.0
  O  O38  1  0.509  0.807  0.986  1.0
  O  O39  1  0.781  0.028  0.593  1.0
  O  O40  1  0.227  0.309  0.855  1.0
  O  O41  1  0.532  0.188  0.769  1.0
  O  O42  1  0.983  0.518  0.123  1.0
  O  O43  1  0.921  0.739  0.973  1.0
  O  O44  1  0.719  0.028  0.093  1.0
  O  O45  1  0.968  0.188  0.269  1.0
  O  O46  1  0.782  0.296  0.589  1.0
  O  O47  1  0.032  0.812  0.731  1.0
  O  O48  1  0.282  0.704  0.911  1.0
  O  O49  1  0.718  0.296  0.089  1.0
  O  O50  1  0.773  0.691  0.145  1.0
  O  O51  1  0.727  0.691  0.645  1.0
[/CIF]
.