The structure described by PbBiOAsO4 crystallizes in the monoclinic C2/m space group. Pb(1) is bonded in a 7-coordinate geometry to one O(3), two equivalent O(4), and four equivalent O(2) atoms. Bi(1) is bonded in a distorted pentagonal planar geometry to one O(1), two equivalent O(2), and two equivalent O(4) atoms. As(1) is bonded in a tetrahedral geometry to one O(1), one O(3), and two equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Bi(1) and one As(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Pb(1), one Bi(1), and one As(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Pb(1) and one As(1) atom. In the fourth O site, O(4) is bonded to two equivalent Pb(1) and two equivalent Bi(1) atoms to form edge-sharing OBi2Pb2 tetrahedra. is represented by the CIF file [CIF]
data_BiAsPbO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.267
_cell_length_b   7.267
_cell_length_c   7.243
_cell_angle_alpha   69.986
_cell_angle_beta   69.986
_cell_angle_gamma   45.539
_symmetry_Int_Tables_number   1
_cell_volume   253.456
_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
  Bi  Bi0  1  0.013  0.013  0.750  1.0
  Bi  Bi1  1  0.987  0.987  0.250  1.0
  As  As2  1  0.665  0.665  0.348  1.0
  As  As3  1  0.335  0.335  0.652  1.0
  Pb  Pb4  1  0.338  0.338  0.120  1.0
  Pb  Pb5  1  0.662  0.662  0.880  1.0
  O  O6  1  0.198  0.198  0.705  1.0
  O  O7  1  0.890  0.394  0.227  1.0
  O  O8  1  0.802  0.802  0.295  1.0
  O  O9  1  0.591  0.591  0.599  1.0
  O  O10  1  0.606  0.110  0.773  1.0
  O  O11  1  0.394  0.890  0.227  1.0
  O  O12  1  0.764  0.236  0.000  1.0
  O  O13  1  0.236  0.764  0.000  1.0
  O  O14  1  0.409  0.409  0.401  1.0
  O  O15  1  0.110  0.606  0.773  1.0
[/CIF]
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The structure described by PbBiOAsO4 crystallizes in the monoclinic C2/m space group. Pb(1) is bonded in a 7-coordinate geometry to one O(3), two equivalent O(4), and four equivalent O(2) atoms. Bi(1) is bonded in a distorted pentagonal planar geometry to one O(1), two equivalent O(2), and two equivalent O(4) atoms. As(1) is bonded in a tetrahedral geometry to one O(1), one O(3), and two equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Bi(1) and one As(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Pb(1), one Bi(1), and one As(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Pb(1) and one As(1) atom. In the fourth O site, O(4) is bonded to two equivalent Pb(1) and two equivalent Bi(1) atoms to form edge-sharing OBi2Pb2 tetrahedra. is represented by the CIF file [CIF]
data_BiAsPbO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.267
_cell_length_b   7.267
_cell_length_c   7.243
_cell_angle_alpha   69.986
_cell_angle_beta   69.986
_cell_angle_gamma   45.539
_symmetry_Int_Tables_number   1
_cell_volume   253.456
_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
  Bi  Bi0  1  0.013  0.013  0.750  1.0
  Bi  Bi1  1  0.987  0.987  0.250  1.0
  As  As2  1  0.665  0.665  0.348  1.0
  As  As3  1  0.335  0.335  0.652  1.0
  Pb  Pb4  1  0.338  0.338  0.120  1.0
  Pb  Pb5  1  0.662  0.662  0.880  1.0
  O  O6  1  0.198  0.198  0.705  1.0
  O  O7  1  0.890  0.394  0.227  1.0
  O  O8  1  0.802  0.802  0.295  1.0
  O  O9  1  0.591  0.591  0.599  1.0
  O  O10  1  0.606  0.110  0.773  1.0
  O  O11  1  0.394  0.890  0.227  1.0
  O  O12  1  0.764  0.236  0.000  1.0
  O  O13  1  0.236  0.764  0.000  1.0
  O  O14  1  0.409  0.409  0.401  1.0
  O  O15  1  0.110  0.606  0.773  1.0
[/CIF]
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