The structure described by Na4PbP6O18 crystallizes in the triclinic P1 space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a 1-coordinate geometry to one Pb(1), one O(14), one O(3), one O(8), and one O(9) atom. In the second Na site, Na(2) is bonded in a 4-coordinate geometry to one O(12), one O(13), one O(4), and one O(7) atom. In the third Na site, Na(3) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(12), one O(15), one O(16), and one O(2) atom. In the fourth Na site, Na(4) is bonded in a 5-coordinate geometry to one O(13), one O(14), one O(5), one O(8), and one O(9) atom. Pb(1) is bonded in a 7-coordinate geometry to one Na(1), one P(5), one O(10), one O(13), one O(14), one O(6), and one O(7) atom. There are six inequivalent P sites. In the first P site, P(1) is bonded in a distorted water-like geometry to one O(12), one O(14), one O(16), and one O(8) atom. In the second P site, P(2) is bonded in a distorted water-like geometry to one O(11), one O(13), and one O(15) atom. In the third P site, P(3) is bonded in a 1-coordinate geometry to one O(10), one O(16), one O(17), and one O(3) atom. In the fourth P site, P(4) is bonded in a 1-coordinate geometry to one O(15), one O(18), one O(4), and one O(9) atom. In the fifth P site, P(5) is bonded in a distorted single-bond geometry to one Pb(1), one O(1), one O(17), one O(5), and one O(7) atom. In the sixth P site, P(6) is bonded in a distorted single-bond geometry to one O(18), one O(6), and one O(8) atom. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Na(3) and one P(5) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Na(3) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Na(1) and one P(3) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Na(2) and one P(4) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one Na(4) and one P(5) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one Pb(1) and one P(6) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Na(2), one Pb(1), and one P(5) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Na(1), one Na(4), one P(1), and one P(6) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Na(1), one Na(4), and one P(4) atom. In the tenth O site, O(10) is bonded in a distorted water-like geometry to one Pb(1) and one P(3) atom. In the eleventh O site, O(11) is bonded in a 1-coordinate geometry to one Na(3) and one P(2) atom. In the twelfth O site, O(12) is bonded in a 1-coordinate geometry to one Na(2), one Na(3), and one P(1) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one Na(2), one Na(4), one Pb(1), and one P(2) atom. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one Na(1), one Na(4), one Pb(1), and one P(1) atom. In the fifteenth O site, O(15) is bonded in a 2-coordinate geometry to one Na(3), one P(2), and one P(4) atom. In the sixteenth O site, O(16) is bonded in a 2-coordinate geometry to one Na(3), one P(1), and one P(3) atom. In the seventeenth O site, O(17) is bonded in a water-like geometry to one P(3) and one P(5) atom. In the eighteenth O site, O(18) is bonded in a water-like geometry to one P(4) and one P(6) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na4P6PbO18
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.390
_cell_length_b   7.946
_cell_length_c   7.956
_cell_angle_alpha   117.711
_cell_angle_beta   95.450
_cell_angle_gamma   101.612
_symmetry_Int_Tables_number   1
_cell_volume   395.475
_cell_formula_units_Z   1
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  0.820  0.818  0.654  1.0
  Na  Na1  1  0.174  0.171  0.340  1.0
  Na  Na2  1  0.505  0.510  0.492  1.0
  Na  Na3  1  0.881  0.809  0.238  1.0
  P  P4  1  0.235  0.683  0.663  1.0
  P  P5  1  0.769  0.323  0.331  1.0
  P  P6  1  0.491  0.954  0.779  1.0
  P  P7  1  0.508  0.052  0.221  1.0
  P  P8  1  0.774  0.316  0.979  1.0
  P  P9  1  0.232  0.677  0.021  1.0
  Pb  Pb10  1  0.090  0.175  0.801  1.0
  O  O11  1  0.747  0.475  0.772  1.0
  O  O12  1  0.258  0.517  0.227  1.0
  O  O13  1  0.702  0.986  0.814  1.0
  O  O14  1  0.296  0.034  0.171  1.0
  O  O15  1  0.803  0.419  0.113  1.0
  O  O16  1  0.206  0.577  0.886  1.0
  O  O17  1  0.929  0.176  0.062  1.0
  O  O18  1  0.075  0.816  0.935  1.0
  O  O19  1  0.621  0.873  0.346  1.0
  O  O20  1  0.365  0.125  0.665  1.0
  O  O21  1  0.745  0.486  0.361  1.0
  O  O22  1  0.269  0.522  0.634  1.0
  O  O23  1  0.920  0.181  0.474  1.0
  O  O24  1  0.079  0.817  0.525  1.0
  O  O25  1  0.567  0.199  0.316  1.0
  O  O26  1  0.434  0.813  0.677  1.0
  O  O27  1  0.574  0.190  0.015  1.0
  O  O28  1  0.433  0.805  0.988  1.0
[/CIF]
.
The structure described by Na4PbP6O18 crystallizes in the triclinic P1 space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a 1-coordinate geometry to one Pb(1), one O(14), one O(3), one O(8), and one O(9) atom. In the second Na site, Na(2) is bonded in a 4-coordinate geometry to one O(12), one O(13), one O(4), and one O(7) atom. In the third Na site, Na(3) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(12), one O(15), one O(16), and one O(2) atom. In the fourth Na site, Na(4) is bonded in a 5-coordinate geometry to one O(13), one O(14), one O(5), one O(8), and one O(9) atom. Pb(1) is bonded in a 7-coordinate geometry to one Na(1), one P(5), one O(10), one O(13), one O(14), one O(6), and one O(7) atom. There are six inequivalent P sites. In the first P site, P(1) is bonded in a distorted water-like geometry to one O(12), one O(14), one O(16), and one O(8) atom. In the second P site, P(2) is bonded in a distorted water-like geometry to one O(11), one O(13), and one O(15) atom. In the third P site, P(3) is bonded in a 1-coordinate geometry to one O(10), one O(16), one O(17), and one O(3) atom. In the fourth P site, P(4) is bonded in a 1-coordinate geometry to one O(15), one O(18), one O(4), and one O(9) atom. In the fifth P site, P(5) is bonded in a distorted single-bond geometry to one Pb(1), one O(1), one O(17), one O(5), and one O(7) atom. In the sixth P site, P(6) is bonded in a distorted single-bond geometry to one O(18), one O(6), and one O(8) atom. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Na(3) and one P(5) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Na(3) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Na(1) and one P(3) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Na(2) and one P(4) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one Na(4) and one P(5) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one Pb(1) and one P(6) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Na(2), one Pb(1), and one P(5) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Na(1), one Na(4), one P(1), and one P(6) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Na(1), one Na(4), and one P(4) atom. In the tenth O site, O(10) is bonded in a distorted water-like geometry to one Pb(1) and one P(3) atom. In the eleventh O site, O(11) is bonded in a 1-coordinate geometry to one Na(3) and one P(2) atom. In the twelfth O site, O(12) is bonded in a 1-coordinate geometry to one Na(2), one Na(3), and one P(1) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one Na(2), one Na(4), one Pb(1), and one P(2) atom. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one Na(1), one Na(4), one Pb(1), and one P(1) atom. In the fifteenth O site, O(15) is bonded in a 2-coordinate geometry to one Na(3), one P(2), and one P(4) atom. In the sixteenth O site, O(16) is bonded in a 2-coordinate geometry to one Na(3), one P(1), and one P(3) atom. In the seventeenth O site, O(17) is bonded in a water-like geometry to one P(3) and one P(5) atom. In the eighteenth O site, O(18) is bonded in a water-like geometry to one P(4) and one P(6) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na4P6PbO18
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.390
_cell_length_b   7.946
_cell_length_c   7.956
_cell_angle_alpha   117.711
_cell_angle_beta   95.450
_cell_angle_gamma   101.612
_symmetry_Int_Tables_number   1
_cell_volume   395.475
_cell_formula_units_Z   1
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  0.820  0.818  0.654  1.0
  Na  Na1  1  0.174  0.171  0.340  1.0
  Na  Na2  1  0.505  0.510  0.492  1.0
  Na  Na3  1  0.881  0.809  0.238  1.0
  P  P4  1  0.235  0.683  0.663  1.0
  P  P5  1  0.769  0.323  0.331  1.0
  P  P6  1  0.491  0.954  0.779  1.0
  P  P7  1  0.508  0.052  0.221  1.0
  P  P8  1  0.774  0.316  0.979  1.0
  P  P9  1  0.232  0.677  0.021  1.0
  Pb  Pb10  1  0.090  0.175  0.801  1.0
  O  O11  1  0.747  0.475  0.772  1.0
  O  O12  1  0.258  0.517  0.227  1.0
  O  O13  1  0.702  0.986  0.814  1.0
  O  O14  1  0.296  0.034  0.171  1.0
  O  O15  1  0.803  0.419  0.113  1.0
  O  O16  1  0.206  0.577  0.886  1.0
  O  O17  1  0.929  0.176  0.062  1.0
  O  O18  1  0.075  0.816  0.935  1.0
  O  O19  1  0.621  0.873  0.346  1.0
  O  O20  1  0.365  0.125  0.665  1.0
  O  O21  1  0.745  0.486  0.361  1.0
  O  O22  1  0.269  0.522  0.634  1.0
  O  O23  1  0.920  0.181  0.474  1.0
  O  O24  1  0.079  0.817  0.525  1.0
  O  O25  1  0.567  0.199  0.316  1.0
  O  O26  1  0.434  0.813  0.677  1.0
  O  O27  1  0.574  0.190  0.015  1.0
  O  O28  1  0.433  0.805  0.988  1.0
[/CIF]
.