The crystal structure described by PbCO3 crystallizes in the orthorhombic Pnma space group. Pb(1) is bonded in a 9-coordinate geometry to three equivalent O(2) and six equivalent O(1) atoms. C(1) is bonded in a trigonal planar geometry to one O(2) and two equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to three equivalent Pb(1) and one C(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to three equivalent Pb(1) and one C(1) atom. is represented by the CIF card [CIF]
data_PbCO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.187
_cell_length_b   6.065
_cell_length_c   8.543
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   268.752
_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
  Pb  Pb0  1  0.250  0.755  0.916  1.0
  Pb  Pb1  1  0.750  0.245  0.084  1.0
  Pb  Pb2  1  0.250  0.255  0.584  1.0
  Pb  Pb3  1  0.750  0.745  0.416  1.0
  C  C4  1  0.250  0.912  0.258  1.0
  C  C5  1  0.750  0.088  0.742  1.0
  C  C6  1  0.250  0.412  0.242  1.0
  C  C7  1  0.750  0.588  0.758  1.0
  O  O8  1  0.466  0.409  0.318  1.0
  O  O9  1  0.966  0.591  0.682  1.0
  O  O10  1  0.034  0.909  0.182  1.0
  O  O11  1  0.534  0.091  0.818  1.0
  O  O12  1  0.750  0.596  0.909  1.0
  O  O13  1  0.250  0.404  0.091  1.0
  O  O14  1  0.750  0.096  0.591  1.0
  O  O15  1  0.250  0.904  0.409  1.0
  O  O16  1  0.534  0.591  0.682  1.0
  O  O17  1  0.034  0.409  0.318  1.0
  O  O18  1  0.966  0.091  0.818  1.0
  O  O19  1  0.466  0.909  0.182  1.0
[/CIF]
.
The crystal structure described by PbCO3 crystallizes in the orthorhombic Pnma space group. Pb(1) is bonded in a 9-coordinate geometry to three equivalent O(2) and six equivalent O(1) atoms. C(1) is bonded in a trigonal planar geometry to one O(2) and two equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to three equivalent Pb(1) and one C(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to three equivalent Pb(1) and one C(1) atom. is represented by the CIF card [CIF]
data_PbCO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.187
_cell_length_b   6.065
_cell_length_c   8.543
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   268.752
_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
  Pb  Pb0  1  0.250  0.755  0.916  1.0
  Pb  Pb1  1  0.750  0.245  0.084  1.0
  Pb  Pb2  1  0.250  0.255  0.584  1.0
  Pb  Pb3  1  0.750  0.745  0.416  1.0
  C  C4  1  0.250  0.912  0.258  1.0
  C  C5  1  0.750  0.088  0.742  1.0
  C  C6  1  0.250  0.412  0.242  1.0
  C  C7  1  0.750  0.588  0.758  1.0
  O  O8  1  0.466  0.409  0.318  1.0
  O  O9  1  0.966  0.591  0.682  1.0
  O  O10  1  0.034  0.909  0.182  1.0
  O  O11  1  0.534  0.091  0.818  1.0
  O  O12  1  0.750  0.596  0.909  1.0
  O  O13  1  0.250  0.404  0.091  1.0
  O  O14  1  0.750  0.096  0.591  1.0
  O  O15  1  0.250  0.904  0.409  1.0
  O  O16  1  0.534  0.591  0.682  1.0
  O  O17  1  0.034  0.409  0.318  1.0
  O  O18  1  0.966  0.091  0.818  1.0
  O  O19  1  0.466  0.909  0.182  1.0
[/CIF]
.