The structure described by Na4Eu2PbP4 crystallizes in the monoclinic Cc space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to one Pb(1), one P(2), one P(3), and one P(4) atom. In the second Na site, Na(2) is bonded in a 4-coordinate geometry to one P(3), one P(4), and two equivalent P(2) atoms. In the third Na site, Na(3) is bonded in a 4-coordinate geometry to one P(3), one P(4), and two equivalent P(1) atoms. In the fourth Na site, Na(4) is bonded in a 4-coordinate geometry to one P(1), one P(2), one P(3), and one P(4) atom. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 3-coordinate geometry to one Pb(1), one P(1), one P(2), one P(4), and two equivalent P(3) atoms. In the second Eu site, Eu(2) is bonded in a 3-coordinate geometry to one Pb(1), one P(4), two equivalent P(1), and two equivalent P(2) atoms. Pb(1) is bonded in a 7-coordinate geometry to one Na(1), one Eu(1), one Eu(2), one P(1), one P(2), one P(3), and one P(4) atom. There are four inequivalent P sites. In the first P site, P(1) is bonded in a 7-coordinate geometry to one Na(4), two equivalent Na(3), one Eu(1), two equivalent Eu(2), and one Pb(1) atom. In the second P site, P(2) is bonded in a 8-coordinate geometry to one Na(1), one Na(4), two equivalent Na(2), one Eu(1), two equivalent Eu(2), and one Pb(1) atom. In the third P site, P(3) is bonded in a 7-coordinate geometry to one Na(1), one Na(2), one Na(3), one Na(4), two equivalent Eu(1), and one Pb(1) atom. In the fourth P site, P(4) is bonded in a 7-coordinate geometry to one Na(1), one Na(2), one Na(3), one Na(4), one Eu(1), one Eu(2), and one Pb(1) atom. is represented by the CIF file [CIF]
data_Na4Eu2P4Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.652
_cell_length_b   9.652
_cell_length_c   7.261
_cell_angle_alpha   89.015
_cell_angle_beta   89.015
_cell_angle_gamma   120.046
_symmetry_Int_Tables_number   1
_cell_volume   585.181
_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  0.072  0.534  0.623  1.0
  Na  Na1  1  0.534  0.072  0.123  1.0
  Na  Na2  1  0.277  0.134  0.810  1.0
  Na  Na3  1  0.863  0.711  0.777  1.0
  Na  Na4  1  0.864  0.148  0.790  1.0
  Na  Na5  1  0.711  0.863  0.277  1.0
  Na  Na6  1  0.134  0.277  0.310  1.0
  Na  Na7  1  0.148  0.864  0.290  1.0
  Eu  Eu8  1  0.468  0.943  0.617  1.0
  Eu  Eu9  1  0.463  0.517  0.625  1.0
  Eu  Eu10  1  0.943  0.468  0.117  1.0
  Eu  Eu11  1  0.517  0.463  0.125  1.0
  P  P12  1  0.630  0.808  0.860  1.0
  P  P13  1  0.188  0.369  0.908  1.0
  P  P14  1  0.179  0.809  0.887  1.0
  P  P15  1  0.369  0.188  0.408  1.0
  P  P16  1  0.808  0.630  0.360  1.0
  P  P17  1  0.809  0.179  0.387  1.0
  P  P18  1  0.665  0.342  0.872  1.0
  P  P19  1  0.342  0.665  0.372  1.0
  Pb  Pb20  1  0.678  0.341  0.507  1.0
  Pb  Pb21  1  0.341  0.678  0.007  1.0
[/CIF]
.
The structure described by Na4Eu2PbP4 crystallizes in the monoclinic Cc space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to one Pb(1), one P(2), one P(3), and one P(4) atom. In the second Na site, Na(2) is bonded in a 4-coordinate geometry to one P(3), one P(4), and two equivalent P(2) atoms. In the third Na site, Na(3) is bonded in a 4-coordinate geometry to one P(3), one P(4), and two equivalent P(1) atoms. In the fourth Na site, Na(4) is bonded in a 4-coordinate geometry to one P(1), one P(2), one P(3), and one P(4) atom. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 3-coordinate geometry to one Pb(1), one P(1), one P(2), one P(4), and two equivalent P(3) atoms. In the second Eu site, Eu(2) is bonded in a 3-coordinate geometry to one Pb(1), one P(4), two equivalent P(1), and two equivalent P(2) atoms. Pb(1) is bonded in a 7-coordinate geometry to one Na(1), one Eu(1), one Eu(2), one P(1), one P(2), one P(3), and one P(4) atom. There are four inequivalent P sites. In the first P site, P(1) is bonded in a 7-coordinate geometry to one Na(4), two equivalent Na(3), one Eu(1), two equivalent Eu(2), and one Pb(1) atom. In the second P site, P(2) is bonded in a 8-coordinate geometry to one Na(1), one Na(4), two equivalent Na(2), one Eu(1), two equivalent Eu(2), and one Pb(1) atom. In the third P site, P(3) is bonded in a 7-coordinate geometry to one Na(1), one Na(2), one Na(3), one Na(4), two equivalent Eu(1), and one Pb(1) atom. In the fourth P site, P(4) is bonded in a 7-coordinate geometry to one Na(1), one Na(2), one Na(3), one Na(4), one Eu(1), one Eu(2), and one Pb(1) atom. is represented by the CIF file [CIF]
data_Na4Eu2P4Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.652
_cell_length_b   9.652
_cell_length_c   7.261
_cell_angle_alpha   89.015
_cell_angle_beta   89.015
_cell_angle_gamma   120.046
_symmetry_Int_Tables_number   1
_cell_volume   585.181
_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  0.072  0.534  0.623  1.0
  Na  Na1  1  0.534  0.072  0.123  1.0
  Na  Na2  1  0.277  0.134  0.810  1.0
  Na  Na3  1  0.863  0.711  0.777  1.0
  Na  Na4  1  0.864  0.148  0.790  1.0
  Na  Na5  1  0.711  0.863  0.277  1.0
  Na  Na6  1  0.134  0.277  0.310  1.0
  Na  Na7  1  0.148  0.864  0.290  1.0
  Eu  Eu8  1  0.468  0.943  0.617  1.0
  Eu  Eu9  1  0.463  0.517  0.625  1.0
  Eu  Eu10  1  0.943  0.468  0.117  1.0
  Eu  Eu11  1  0.517  0.463  0.125  1.0
  P  P12  1  0.630  0.808  0.860  1.0
  P  P13  1  0.188  0.369  0.908  1.0
  P  P14  1  0.179  0.809  0.887  1.0
  P  P15  1  0.369  0.188  0.408  1.0
  P  P16  1  0.808  0.630  0.360  1.0
  P  P17  1  0.809  0.179  0.387  1.0
  P  P18  1  0.665  0.342  0.872  1.0
  P  P19  1  0.342  0.665  0.372  1.0
  Pb  Pb20  1  0.678  0.341  0.507  1.0
  Pb  Pb21  1  0.341  0.678  0.007  1.0
[/CIF]
.