The crystal structure described by PbB4O7 crystallizes in the orthorhombic Pmn2_1 space group. There are two inequivalent B sites. In the first B site, B(1) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form corner-sharing BO4 tetrahedra. In the second B site, B(2) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form corner-sharing BO4 tetrahedra. Pb(1) is bonded in a 5-coordinate geometry to one O(4), two equivalent O(1), and two equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one B(1), one B(2), and one Pb(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one B(1), one B(2), and one Pb(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one B(2) and two equivalent B(1) atoms. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to two equivalent B(2) and one Pb(1) atom. is represented by the CIF card [CIF]
data_B4PbO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.249
_cell_length_b   4.461
_cell_length_c   10.860
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   205.865
_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
  B  B0  1  0.998  0.177  0.248  1.0
  B  B1  1  0.498  0.823  0.252  1.0
  B  B2  1  0.024  0.674  0.378  1.0
  B  B3  1  0.524  0.326  0.122  1.0
  B  B4  1  0.524  0.326  0.878  1.0
  B  B5  1  0.024  0.674  0.622  1.0
  B  B6  1  0.498  0.823  0.748  1.0
  B  B7  1  0.998  0.177  0.752  1.0
  Pb  Pb8  1  0.529  0.197  0.500  1.0
  Pb  Pb9  1  0.029  0.803  0.000  1.0
  O  O10  1  0.451  0.639  0.145  1.0
  O  O11  1  0.356  0.730  0.363  1.0
  O  O12  1  0.856  0.270  0.137  1.0
  O  O13  1  0.856  0.270  0.863  1.0
  O  O14  1  0.852  0.872  0.720  1.0
  O  O15  1  0.352  0.128  0.780  1.0
  O  O16  1  0.352  0.128  0.220  1.0
  O  O17  1  0.852  0.872  0.280  1.0
  O  O18  1  0.951  0.361  0.645  1.0
  O  O19  1  0.451  0.639  0.855  1.0
  O  O20  1  0.917  0.764  0.500  1.0
  O  O21  1  0.417  0.236  0.000  1.0
  O  O22  1  0.356  0.730  0.637  1.0
  O  O23  1  0.951  0.361  0.355  1.0
[/CIF]
.
The crystal structure described by PbB4O7 crystallizes in the orthorhombic Pmn2_1 space group. There are two inequivalent B sites. In the first B site, B(1) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form corner-sharing BO4 tetrahedra. In the second B site, B(2) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form corner-sharing BO4 tetrahedra. Pb(1) is bonded in a 5-coordinate geometry to one O(4), two equivalent O(1), and two equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one B(1), one B(2), and one Pb(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one B(1), one B(2), and one Pb(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one B(2) and two equivalent B(1) atoms. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to two equivalent B(2) and one Pb(1) atom. is represented by the CIF card [CIF]
data_B4PbO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.249
_cell_length_b   4.461
_cell_length_c   10.860
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   205.865
_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
  B  B0  1  0.998  0.177  0.248  1.0
  B  B1  1  0.498  0.823  0.252  1.0
  B  B2  1  0.024  0.674  0.378  1.0
  B  B3  1  0.524  0.326  0.122  1.0
  B  B4  1  0.524  0.326  0.878  1.0
  B  B5  1  0.024  0.674  0.622  1.0
  B  B6  1  0.498  0.823  0.748  1.0
  B  B7  1  0.998  0.177  0.752  1.0
  Pb  Pb8  1  0.529  0.197  0.500  1.0
  Pb  Pb9  1  0.029  0.803  0.000  1.0
  O  O10  1  0.451  0.639  0.145  1.0
  O  O11  1  0.356  0.730  0.363  1.0
  O  O12  1  0.856  0.270  0.137  1.0
  O  O13  1  0.856  0.270  0.863  1.0
  O  O14  1  0.852  0.872  0.720  1.0
  O  O15  1  0.352  0.128  0.780  1.0
  O  O16  1  0.352  0.128  0.220  1.0
  O  O17  1  0.852  0.872  0.280  1.0
  O  O18  1  0.951  0.361  0.645  1.0
  O  O19  1  0.451  0.639  0.855  1.0
  O  O20  1  0.917  0.764  0.500  1.0
  O  O21  1  0.417  0.236  0.000  1.0
  O  O22  1  0.356  0.730  0.637  1.0
  O  O23  1  0.951  0.361  0.355  1.0
[/CIF]
.