The crystal structure described by SrBi2B4O10 crystallizes in the triclinic P-1 space group. Sr(1) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(6), one O(8), one O(9), and two equivalent O(5) atoms. There are four inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(3), one O(4), and one O(5) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(1), one O(7), and one O(8) atom. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(10), one O(3), and one O(6) atom. In the fourth B site, B(4) is bonded in a tetrahedral geometry to one O(4), one O(6), one O(8), and one O(9) atom. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(5), one O(7), and one O(9) atom. In the second Bi site, Bi(2) is bonded in a 7-coordinate geometry to one O(10), one O(4), one O(9), two equivalent O(1), and two equivalent O(2) atoms. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Sr(1), one B(2), and two equivalent Bi(2) atoms. In the second O site, O(2) is bonded to one Sr(1), one Bi(1), and two equivalent Bi(2) atoms to form distorted edge-sharing OSrBi3 tetrahedra. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Sr(1), one B(1), and one B(3) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one B(1), one B(4), and one Bi(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent Sr(1), one B(1), and one Bi(1) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Sr(1), one B(3), and one B(4) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one B(2) and one Bi(1) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one B(2), and one B(4) atom. In the ninth O site, O(9) is bonded in a 1-coordinate geometry to one Sr(1), one B(4), one Bi(1), and one Bi(2) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one Sr(1), one B(3), and one Bi(2) atom. is represented by the CIF file [CIF]
data_SrBi2(B2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.856
_cell_length_b   7.036
_cell_length_c   9.904
_cell_angle_alpha   96.013
_cell_angle_beta   108.933
_cell_angle_gamma   101.627
_symmetry_Int_Tables_number   1
_cell_volume   435.088
_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
  Sr  Sr0  1  0.034  0.850  0.166  1.0
  Sr  Sr1  1  0.966  0.150  0.834  1.0
  Bi  Bi2  1  0.732  0.642  0.664  1.0
  Bi  Bi3  1  0.268  0.358  0.336  1.0
  Bi  Bi4  1  0.696  0.017  0.399  1.0
  Bi  Bi5  1  0.304  0.983  0.601  1.0
  B  B6  1  0.399  0.205  0.075  1.0
  B  B7  1  0.601  0.795  0.925  1.0
  B  B8  1  0.848  0.610  0.368  1.0
  B  B9  1  0.152  0.390  0.632  1.0
  B  B10  1  0.411  0.747  0.093  1.0
  B  B11  1  0.199  0.697  0.823  1.0
  B  B12  1  0.801  0.303  0.177  1.0
  B  B13  1  0.589  0.253  0.907  1.0
  O  O14  1  0.075  0.185  0.605  1.0
  O  O15  1  0.641  0.897  0.587  1.0
  O  O16  1  0.602  0.774  0.065  1.0
  O  O17  1  0.411  0.775  0.815  1.0
  O  O18  1  0.589  0.225  0.185  1.0
  O  O19  1  0.359  0.103  0.413  1.0
  O  O20  1  0.211  0.166  0.095  1.0
  O  O21  1  0.782  0.296  0.020  1.0
  O  O22  1  0.218  0.704  0.980  1.0
  O  O23  1  0.742  0.512  0.446  1.0
  O  O24  1  0.889  0.515  0.251  1.0
  O  O25  1  0.938  0.183  0.251  1.0
  O  O26  1  0.582  0.228  0.767  1.0
  O  O27  1  0.789  0.834  0.905  1.0
  O  O28  1  0.111  0.485  0.749  1.0
  O  O29  1  0.258  0.488  0.554  1.0
  O  O30  1  0.062  0.817  0.749  1.0
  O  O31  1  0.925  0.815  0.395  1.0
  O  O32  1  0.418  0.772  0.233  1.0
  O  O33  1  0.398  0.226  0.935  1.0
[/CIF]
.
The crystal structure described by SrBi2B4O10 crystallizes in the triclinic P-1 space group. Sr(1) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(6), one O(8), one O(9), and two equivalent O(5) atoms. There are four inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(3), one O(4), and one O(5) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(1), one O(7), and one O(8) atom. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(10), one O(3), and one O(6) atom. In the fourth B site, B(4) is bonded in a tetrahedral geometry to one O(4), one O(6), one O(8), and one O(9) atom. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(5), one O(7), and one O(9) atom. In the second Bi site, Bi(2) is bonded in a 7-coordinate geometry to one O(10), one O(4), one O(9), two equivalent O(1), and two equivalent O(2) atoms. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Sr(1), one B(2), and two equivalent Bi(2) atoms. In the second O site, O(2) is bonded to one Sr(1), one Bi(1), and two equivalent Bi(2) atoms to form distorted edge-sharing OSrBi3 tetrahedra. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Sr(1), one B(1), and one B(3) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one B(1), one B(4), and one Bi(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent Sr(1), one B(1), and one Bi(1) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Sr(1), one B(3), and one B(4) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one B(2) and one Bi(1) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one B(2), and one B(4) atom. In the ninth O site, O(9) is bonded in a 1-coordinate geometry to one Sr(1), one B(4), one Bi(1), and one Bi(2) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one Sr(1), one B(3), and one Bi(2) atom. is represented by the CIF file [CIF]
data_SrBi2(B2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.856
_cell_length_b   7.036
_cell_length_c   9.904
_cell_angle_alpha   96.013
_cell_angle_beta   108.933
_cell_angle_gamma   101.627
_symmetry_Int_Tables_number   1
_cell_volume   435.088
_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
  Sr  Sr0  1  0.034  0.850  0.166  1.0
  Sr  Sr1  1  0.966  0.150  0.834  1.0
  Bi  Bi2  1  0.732  0.642  0.664  1.0
  Bi  Bi3  1  0.268  0.358  0.336  1.0
  Bi  Bi4  1  0.696  0.017  0.399  1.0
  Bi  Bi5  1  0.304  0.983  0.601  1.0
  B  B6  1  0.399  0.205  0.075  1.0
  B  B7  1  0.601  0.795  0.925  1.0
  B  B8  1  0.848  0.610  0.368  1.0
  B  B9  1  0.152  0.390  0.632  1.0
  B  B10  1  0.411  0.747  0.093  1.0
  B  B11  1  0.199  0.697  0.823  1.0
  B  B12  1  0.801  0.303  0.177  1.0
  B  B13  1  0.589  0.253  0.907  1.0
  O  O14  1  0.075  0.185  0.605  1.0
  O  O15  1  0.641  0.897  0.587  1.0
  O  O16  1  0.602  0.774  0.065  1.0
  O  O17  1  0.411  0.775  0.815  1.0
  O  O18  1  0.589  0.225  0.185  1.0
  O  O19  1  0.359  0.103  0.413  1.0
  O  O20  1  0.211  0.166  0.095  1.0
  O  O21  1  0.782  0.296  0.020  1.0
  O  O22  1  0.218  0.704  0.980  1.0
  O  O23  1  0.742  0.512  0.446  1.0
  O  O24  1  0.889  0.515  0.251  1.0
  O  O25  1  0.938  0.183  0.251  1.0
  O  O26  1  0.582  0.228  0.767  1.0
  O  O27  1  0.789  0.834  0.905  1.0
  O  O28  1  0.111  0.485  0.749  1.0
  O  O29  1  0.258  0.488  0.554  1.0
  O  O30  1  0.062  0.817  0.749  1.0
  O  O31  1  0.925  0.815  0.395  1.0
  O  O32  1  0.418  0.772  0.233  1.0
  O  O33  1  0.398  0.226  0.935  1.0
[/CIF]
.