The structure described by Na4Bi2P(CO4)4 crystallizes in the orthorhombic Fddd space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form distorted NaO6 octahedra that share corners with four equivalent Na(2)O6 octahedra, edges with two equivalent Bi(1)O6 octahedra, and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 59-82°. In the second Na site, Na(2) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form distorted NaO6 octahedra that share corners with four equivalent Na(1)O6 octahedra, edges with two equivalent Bi(1)O6 octahedra, and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 59-82°. C(1) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(4) atom. Bi(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form BiO6 octahedra that share edges with two equivalent Na(1)O6 octahedra and edges with two equivalent Na(2)O6 octahedra. P(1) is bonded to four equivalent O(2) atoms to form PO4 tetrahedra that share edges with two equivalent Na(1)O6 octahedra and edges with two equivalent Na(2)O6 octahedra. There are four inequivalent O sites. In the first O site, O(2) is bonded in a distorted T-shaped geometry to one Na(1), one Na(2), and one P(1) atom. In the second O site, O(3) is bonded in a 3-coordinate geometry to one Na(2), one C(1), and one Bi(1) atom. In the third O site, O(1) is bonded in a 3-coordinate geometry to one Na(1), one C(1), and one Bi(1) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Na(1), one Na(2), one C(1), and one Bi(1) atom. is represented by the CIF file [CIF]
data_Na4Bi2P(CO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.649
_cell_length_b   10.537
_cell_length_c   10.226
_cell_angle_alpha   61.694
_cell_angle_beta   60.590
_cell_angle_gamma   57.716
_symmetry_Int_Tables_number   1
_cell_volume   809.337
_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
  Na  Na0  1  0.952  0.548  0.952  1.0
  Na  Na1  1  0.953  0.547  0.547  1.0
  Na  Na2  1  0.703  0.297  0.297  1.0
  Na  Na3  1  0.702  0.298  0.702  1.0
  Na  Na4  1  0.548  0.952  0.548  1.0
  Na  Na5  1  0.547  0.953  0.953  1.0
  Na  Na6  1  0.297  0.703  0.703  1.0
  Na  Na7  1  0.298  0.702  0.298  1.0
  Bi  Bi8  1  0.125  0.625  0.125  1.0
  Bi  Bi9  1  0.625  0.125  0.125  1.0
  Bi  Bi10  1  0.125  0.125  0.125  1.0
  Bi  Bi11  1  0.125  0.125  0.625  1.0
  P  P12  1  0.500  0.500  0.500  1.0
  P  P13  1  0.750  0.750  0.750  1.0
  C  C14  1  0.893  0.287  0.913  1.0
  C  C15  1  0.963  0.357  0.343  1.0
  C  C16  1  0.913  0.907  0.893  1.0
  C  C17  1  0.907  0.913  0.287  1.0
  C  C18  1  0.343  0.337  0.963  1.0
  C  C19  1  0.337  0.343  0.357  1.0
  C  C20  1  0.287  0.893  0.907  1.0
  C  C21  1  0.357  0.963  0.337  1.0
  O  O22  1  0.006  0.295  0.923  1.0
  O  O23  1  0.555  0.557  0.318  1.0
  O  O24  1  0.773  0.274  0.035  1.0
  O  O25  1  0.976  0.477  0.332  1.0
  O  O26  1  0.035  0.918  0.773  1.0
  O  O27  1  0.958  0.348  0.222  1.0
  O  O28  1  0.318  0.570  0.555  1.0
  O  O29  1  0.557  0.555  0.570  1.0
  O  O30  1  0.472  0.222  0.348  1.0
  O  O31  1  0.918  0.035  0.274  1.0
  O  O32  1  0.955  0.244  0.473  1.0
  O  O33  1  0.570  0.318  0.557  1.0
  O  O34  1  0.923  0.777  0.006  1.0
  O  O35  1  0.777  0.923  0.295  1.0
  O  O36  1  0.902  0.292  0.778  1.0
  O  O37  1  0.222  0.472  0.958  1.0
  O  O38  1  0.028  0.778  0.292  1.0
  O  O39  1  0.348  0.958  0.472  1.0
  O  O40  1  0.473  0.327  0.955  1.0
  O  O41  1  0.327  0.473  0.244  1.0
  O  O42  1  0.680  0.932  0.693  1.0
  O  O43  1  0.295  0.006  0.777  1.0
  O  O44  1  0.332  0.215  0.976  1.0
  O  O45  1  0.778  0.028  0.902  1.0
  O  O46  1  0.693  0.695  0.680  1.0
  O  O47  1  0.932  0.680  0.695  1.0
  O  O48  1  0.292  0.902  0.028  1.0
  O  O49  1  0.215  0.332  0.477  1.0
  O  O50  1  0.274  0.773  0.918  1.0
  O  O51  1  0.477  0.976  0.215  1.0
  O  O52  1  0.695  0.693  0.932  1.0
  O  O53  1  0.244  0.955  0.327  1.0
[/CIF]
.
The structure described by Na4Bi2P(CO4)4 crystallizes in the orthorhombic Fddd space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form distorted NaO6 octahedra that share corners with four equivalent Na(2)O6 octahedra, edges with two equivalent Bi(1)O6 octahedra, and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 59-82°. In the second Na site, Na(2) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form distorted NaO6 octahedra that share corners with four equivalent Na(1)O6 octahedra, edges with two equivalent Bi(1)O6 octahedra, and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 59-82°. C(1) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(4) atom. Bi(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form BiO6 octahedra that share edges with two equivalent Na(1)O6 octahedra and edges with two equivalent Na(2)O6 octahedra. P(1) is bonded to four equivalent O(2) atoms to form PO4 tetrahedra that share edges with two equivalent Na(1)O6 octahedra and edges with two equivalent Na(2)O6 octahedra. There are four inequivalent O sites. In the first O site, O(2) is bonded in a distorted T-shaped geometry to one Na(1), one Na(2), and one P(1) atom. In the second O site, O(3) is bonded in a 3-coordinate geometry to one Na(2), one C(1), and one Bi(1) atom. In the third O site, O(1) is bonded in a 3-coordinate geometry to one Na(1), one C(1), and one Bi(1) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Na(1), one Na(2), one C(1), and one Bi(1) atom. is represented by the CIF file [CIF]
data_Na4Bi2P(CO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.649
_cell_length_b   10.537
_cell_length_c   10.226
_cell_angle_alpha   61.694
_cell_angle_beta   60.590
_cell_angle_gamma   57.716
_symmetry_Int_Tables_number   1
_cell_volume   809.337
_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
  Na  Na0  1  0.952  0.548  0.952  1.0
  Na  Na1  1  0.953  0.547  0.547  1.0
  Na  Na2  1  0.703  0.297  0.297  1.0
  Na  Na3  1  0.702  0.298  0.702  1.0
  Na  Na4  1  0.548  0.952  0.548  1.0
  Na  Na5  1  0.547  0.953  0.953  1.0
  Na  Na6  1  0.297  0.703  0.703  1.0
  Na  Na7  1  0.298  0.702  0.298  1.0
  Bi  Bi8  1  0.125  0.625  0.125  1.0
  Bi  Bi9  1  0.625  0.125  0.125  1.0
  Bi  Bi10  1  0.125  0.125  0.125  1.0
  Bi  Bi11  1  0.125  0.125  0.625  1.0
  P  P12  1  0.500  0.500  0.500  1.0
  P  P13  1  0.750  0.750  0.750  1.0
  C  C14  1  0.893  0.287  0.913  1.0
  C  C15  1  0.963  0.357  0.343  1.0
  C  C16  1  0.913  0.907  0.893  1.0
  C  C17  1  0.907  0.913  0.287  1.0
  C  C18  1  0.343  0.337  0.963  1.0
  C  C19  1  0.337  0.343  0.357  1.0
  C  C20  1  0.287  0.893  0.907  1.0
  C  C21  1  0.357  0.963  0.337  1.0
  O  O22  1  0.006  0.295  0.923  1.0
  O  O23  1  0.555  0.557  0.318  1.0
  O  O24  1  0.773  0.274  0.035  1.0
  O  O25  1  0.976  0.477  0.332  1.0
  O  O26  1  0.035  0.918  0.773  1.0
  O  O27  1  0.958  0.348  0.222  1.0
  O  O28  1  0.318  0.570  0.555  1.0
  O  O29  1  0.557  0.555  0.570  1.0
  O  O30  1  0.472  0.222  0.348  1.0
  O  O31  1  0.918  0.035  0.274  1.0
  O  O32  1  0.955  0.244  0.473  1.0
  O  O33  1  0.570  0.318  0.557  1.0
  O  O34  1  0.923  0.777  0.006  1.0
  O  O35  1  0.777  0.923  0.295  1.0
  O  O36  1  0.902  0.292  0.778  1.0
  O  O37  1  0.222  0.472  0.958  1.0
  O  O38  1  0.028  0.778  0.292  1.0
  O  O39  1  0.348  0.958  0.472  1.0
  O  O40  1  0.473  0.327  0.955  1.0
  O  O41  1  0.327  0.473  0.244  1.0
  O  O42  1  0.680  0.932  0.693  1.0
  O  O43  1  0.295  0.006  0.777  1.0
  O  O44  1  0.332  0.215  0.976  1.0
  O  O45  1  0.778  0.028  0.902  1.0
  O  O46  1  0.693  0.695  0.680  1.0
  O  O47  1  0.932  0.680  0.695  1.0
  O  O48  1  0.292  0.902  0.028  1.0
  O  O49  1  0.215  0.332  0.477  1.0
  O  O50  1  0.274  0.773  0.918  1.0
  O  O51  1  0.477  0.976  0.215  1.0
  O  O52  1  0.695  0.693  0.932  1.0
  O  O53  1  0.244  0.955  0.327  1.0
[/CIF]
.