The structure described by Cu3B4Pb2O11 crystallizes in the monoclinic P2/c space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(3), and two equivalent O(4) atoms. In the second Cu site, Cu(2) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. There are two inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(2), one O(4), and one O(5) atom. In the second B site, B(2) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form corner-sharing BO4 tetrahedra. Pb(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Cu(1), one B(2), and one Pb(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Cu(2), one B(1), and one Pb(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Cu(1), one Cu(2), one B(2), and one Pb(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Cu(1) and one B(1) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one B(1) and one B(2) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to two equivalent B(2) and two equivalent Pb(1) atoms. is represented by the CIF file [CIF]
data_Cu3B4Pb2O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.784
_cell_length_b   6.875
_cell_length_c   15.677
_cell_angle_alpha   70.797
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   486.872
_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
  Cu  Cu0  1  0.479  0.211  0.942  1.0
  Cu  Cu1  1  0.521  0.789  0.058  1.0
  Cu  Cu2  1  0.479  0.789  0.558  1.0
  Cu  Cu3  1  0.000  0.500  0.000  1.0
  Cu  Cu4  1  0.000  0.500  0.500  1.0
  Cu  Cu5  1  0.521  0.211  0.442  1.0
  B  B6  1  0.055  0.036  0.097  1.0
  B  B7  1  0.011  0.361  0.339  1.0
  B  B8  1  0.055  0.964  0.403  1.0
  B  B9  1  0.989  0.361  0.839  1.0
  B  B10  1  0.989  0.639  0.661  1.0
  B  B11  1  0.011  0.639  0.161  1.0
  B  B12  1  0.945  0.964  0.903  1.0
  B  B13  1  0.945  0.036  0.597  1.0
  Pb  Pb14  1  0.579  0.292  0.192  1.0
  Pb  Pb15  1  0.579  0.708  0.308  1.0
  Pb  Pb16  1  0.421  0.292  0.692  1.0
  Pb  Pb17  1  0.421  0.708  0.808  1.0
  O  O18  1  0.699  0.599  0.651  1.0
  O  O19  1  0.067  0.221  0.590  1.0
  O  O20  1  0.175  0.589  0.592  1.0
  O  O21  1  0.825  0.411  0.408  1.0
  O  O22  1  0.290  0.027  0.048  1.0
  O  O23  1  0.052  0.146  0.841  1.0
  O  O24  1  0.067  0.779  0.910  1.0
  O  O25  1  0.290  0.973  0.452  1.0
  O  O26  1  0.710  0.027  0.548  1.0
  O  O27  1  0.110  0.500  0.750  1.0
  O  O28  1  0.710  0.973  0.952  1.0
  O  O29  1  0.948  0.854  0.159  1.0
  O  O30  1  0.825  0.589  0.092  1.0
  O  O31  1  0.933  0.221  0.090  1.0
  O  O32  1  0.301  0.599  0.151  1.0
  O  O33  1  0.052  0.854  0.659  1.0
  O  O34  1  0.933  0.779  0.410  1.0
  O  O35  1  0.948  0.146  0.341  1.0
  O  O36  1  0.890  0.500  0.250  1.0
  O  O37  1  0.175  0.411  0.908  1.0
  O  O38  1  0.699  0.401  0.849  1.0
  O  O39  1  0.301  0.401  0.349  1.0
[/CIF]
.
The structure described by Cu3B4Pb2O11 crystallizes in the monoclinic P2/c space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(3), and two equivalent O(4) atoms. In the second Cu site, Cu(2) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. There are two inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(2), one O(4), and one O(5) atom. In the second B site, B(2) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form corner-sharing BO4 tetrahedra. Pb(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Cu(1), one B(2), and one Pb(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Cu(2), one B(1), and one Pb(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Cu(1), one Cu(2), one B(2), and one Pb(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Cu(1) and one B(1) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one B(1) and one B(2) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to two equivalent B(2) and two equivalent Pb(1) atoms. is represented by the CIF file [CIF]
data_Cu3B4Pb2O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.784
_cell_length_b   6.875
_cell_length_c   15.677
_cell_angle_alpha   70.797
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   486.872
_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
  Cu  Cu0  1  0.479  0.211  0.942  1.0
  Cu  Cu1  1  0.521  0.789  0.058  1.0
  Cu  Cu2  1  0.479  0.789  0.558  1.0
  Cu  Cu3  1  0.000  0.500  0.000  1.0
  Cu  Cu4  1  0.000  0.500  0.500  1.0
  Cu  Cu5  1  0.521  0.211  0.442  1.0
  B  B6  1  0.055  0.036  0.097  1.0
  B  B7  1  0.011  0.361  0.339  1.0
  B  B8  1  0.055  0.964  0.403  1.0
  B  B9  1  0.989  0.361  0.839  1.0
  B  B10  1  0.989  0.639  0.661  1.0
  B  B11  1  0.011  0.639  0.161  1.0
  B  B12  1  0.945  0.964  0.903  1.0
  B  B13  1  0.945  0.036  0.597  1.0
  Pb  Pb14  1  0.579  0.292  0.192  1.0
  Pb  Pb15  1  0.579  0.708  0.308  1.0
  Pb  Pb16  1  0.421  0.292  0.692  1.0
  Pb  Pb17  1  0.421  0.708  0.808  1.0
  O  O18  1  0.699  0.599  0.651  1.0
  O  O19  1  0.067  0.221  0.590  1.0
  O  O20  1  0.175  0.589  0.592  1.0
  O  O21  1  0.825  0.411  0.408  1.0
  O  O22  1  0.290  0.027  0.048  1.0
  O  O23  1  0.052  0.146  0.841  1.0
  O  O24  1  0.067  0.779  0.910  1.0
  O  O25  1  0.290  0.973  0.452  1.0
  O  O26  1  0.710  0.027  0.548  1.0
  O  O27  1  0.110  0.500  0.750  1.0
  O  O28  1  0.710  0.973  0.952  1.0
  O  O29  1  0.948  0.854  0.159  1.0
  O  O30  1  0.825  0.589  0.092  1.0
  O  O31  1  0.933  0.221  0.090  1.0
  O  O32  1  0.301  0.599  0.151  1.0
  O  O33  1  0.052  0.854  0.659  1.0
  O  O34  1  0.933  0.779  0.410  1.0
  O  O35  1  0.948  0.146  0.341  1.0
  O  O36  1  0.890  0.500  0.250  1.0
  O  O37  1  0.175  0.411  0.908  1.0
  O  O38  1  0.699  0.401  0.849  1.0
  O  O39  1  0.301  0.401  0.349  1.0
[/CIF]
.