The compound described by B2BiO5 crystallizes in the monoclinic C2/c space group. There are two inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(5) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(2), one O(4), and one O(5) atom. Bi(1) is bonded to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form distorted edge-sharing BiO8 hexagonal bipyramids. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one B(1) and two equivalent Bi(1) atoms. In the second O site, O(2) is bonded in a distorted single-bond geometry to one B(2) and two equivalent Bi(1) atoms. In the third O site, O(3) is bonded in a distorted single-bond geometry to 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 one B(2) and two equivalent Bi(1) atoms. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one B(1) and one B(2) atom. is represented by the CIF file [CIF]
data_BiB2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.703
_cell_length_b   6.703
_cell_length_c   10.244
_cell_angle_alpha   78.960
_cell_angle_beta   78.960
_cell_angle_gamma   61.348
_symmetry_Int_Tables_number   1
_cell_volume   393.787
_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
  Bi  Bi0  1  0.383  0.984  0.692  1.0
  Bi  Bi1  1  0.984  0.383  0.192  1.0
  Bi  Bi2  1  0.016  0.617  0.808  1.0
  Bi  Bi3  1  0.617  0.016  0.308  1.0
  B  B4  1  0.829  0.441  0.641  1.0
  B  B5  1  0.766  0.282  0.001  1.0
  B  B6  1  0.441  0.829  0.141  1.0
  B  B7  1  0.282  0.766  0.501  1.0
  B  B8  1  0.718  0.234  0.499  1.0
  B  B9  1  0.559  0.171  0.859  1.0
  B  B10  1  0.234  0.718  0.999  1.0
  B  B11  1  0.171  0.559  0.359  1.0
  O  O12  1  0.672  0.943  0.841  1.0
  O  O13  1  0.943  0.672  0.341  1.0
  O  O14  1  0.894  0.399  0.973  1.0
  O  O15  1  0.724  0.651  0.690  1.0
  O  O16  1  0.399  0.894  0.473  1.0
  O  O17  1  0.651  0.724  0.190  1.0
  O  O18  1  0.215  0.830  0.871  1.0
  O  O19  1  0.707  0.366  0.590  1.0
  O  O20  1  0.634  0.293  0.910  1.0
  O  O21  1  0.830  0.215  0.371  1.0
  O  O22  1  0.170  0.785  0.629  1.0
  O  O23  1  0.366  0.707  0.090  1.0
  O  O24  1  0.293  0.634  0.410  1.0
  O  O25  1  0.785  0.170  0.129  1.0
  O  O26  1  0.349  0.276  0.810  1.0
  O  O27  1  0.601  0.106  0.527  1.0
  O  O28  1  0.276  0.349  0.310  1.0
  O  O29  1  0.106  0.601  0.027  1.0
  O  O30  1  0.057  0.328  0.659  1.0
  O  O31  1  0.328  0.057  0.159  1.0
[/CIF]
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The compound described by B2BiO5 crystallizes in the monoclinic C2/c space group. There are two inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(5) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(2), one O(4), and one O(5) atom. Bi(1) is bonded to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form distorted edge-sharing BiO8 hexagonal bipyramids. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one B(1) and two equivalent Bi(1) atoms. In the second O site, O(2) is bonded in a distorted single-bond geometry to one B(2) and two equivalent Bi(1) atoms. In the third O site, O(3) is bonded in a distorted single-bond geometry to 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 one B(2) and two equivalent Bi(1) atoms. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one B(1) and one B(2) atom. is represented by the CIF file [CIF]
data_BiB2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.703
_cell_length_b   6.703
_cell_length_c   10.244
_cell_angle_alpha   78.960
_cell_angle_beta   78.960
_cell_angle_gamma   61.348
_symmetry_Int_Tables_number   1
_cell_volume   393.787
_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
  Bi  Bi0  1  0.383  0.984  0.692  1.0
  Bi  Bi1  1  0.984  0.383  0.192  1.0
  Bi  Bi2  1  0.016  0.617  0.808  1.0
  Bi  Bi3  1  0.617  0.016  0.308  1.0
  B  B4  1  0.829  0.441  0.641  1.0
  B  B5  1  0.766  0.282  0.001  1.0
  B  B6  1  0.441  0.829  0.141  1.0
  B  B7  1  0.282  0.766  0.501  1.0
  B  B8  1  0.718  0.234  0.499  1.0
  B  B9  1  0.559  0.171  0.859  1.0
  B  B10  1  0.234  0.718  0.999  1.0
  B  B11  1  0.171  0.559  0.359  1.0
  O  O12  1  0.672  0.943  0.841  1.0
  O  O13  1  0.943  0.672  0.341  1.0
  O  O14  1  0.894  0.399  0.973  1.0
  O  O15  1  0.724  0.651  0.690  1.0
  O  O16  1  0.399  0.894  0.473  1.0
  O  O17  1  0.651  0.724  0.190  1.0
  O  O18  1  0.215  0.830  0.871  1.0
  O  O19  1  0.707  0.366  0.590  1.0
  O  O20  1  0.634  0.293  0.910  1.0
  O  O21  1  0.830  0.215  0.371  1.0
  O  O22  1  0.170  0.785  0.629  1.0
  O  O23  1  0.366  0.707  0.090  1.0
  O  O24  1  0.293  0.634  0.410  1.0
  O  O25  1  0.785  0.170  0.129  1.0
  O  O26  1  0.349  0.276  0.810  1.0
  O  O27  1  0.601  0.106  0.527  1.0
  O  O28  1  0.276  0.349  0.310  1.0
  O  O29  1  0.106  0.601  0.027  1.0
  O  O30  1  0.057  0.328  0.659  1.0
  O  O31  1  0.328  0.057  0.159  1.0
[/CIF]
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