The material described by Na4HgP2 crystallizes in the trigonal R-3m space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to four equivalent P(1) atoms to form a mixture of corner and edge-sharing NaP4 tetrahedra. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to three equivalent Hg(1) and three equivalent P(1) atoms. Hg(1) is bonded in a distorted body-centered cubic geometry to six equivalent Na(2) and two equivalent P(1) atoms. P(1) is bonded in a body-centered cubic geometry to three equivalent Na(2), four equivalent Na(1), and one Hg(1) atom. is represented by the CIF card [CIF]
data_Na4HgP2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.979
_cell_length_b   8.979
_cell_length_c   8.979
_cell_angle_alpha   32.127
_cell_angle_beta   32.127
_cell_angle_gamma   32.127
_symmetry_Int_Tables_number   1
_cell_volume   181.915
_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  0.793  0.793  0.793  1.0
  Na  Na1  1  0.597  0.597  0.597  1.0
  Na  Na2  1  0.207  0.207  0.207  1.0
  Na  Na3  1  0.403  0.403  0.403  1.0
  Hg  Hg4  1  0.000  0.000  0.000  1.0
  P  P5  1  0.094  0.094  0.094  1.0
  P  P6  1  0.906  0.906  0.906  1.0
[/CIF]
.
The material described by Na4HgP2 crystallizes in the trigonal R-3m space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to four equivalent P(1) atoms to form a mixture of corner and edge-sharing NaP4 tetrahedra. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to three equivalent Hg(1) and three equivalent P(1) atoms. Hg(1) is bonded in a distorted body-centered cubic geometry to six equivalent Na(2) and two equivalent P(1) atoms. P(1) is bonded in a body-centered cubic geometry to three equivalent Na(2), four equivalent Na(1), and one Hg(1) atom. is represented by the CIF card [CIF]
data_Na4HgP2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.979
_cell_length_b   8.979
_cell_length_c   8.979
_cell_angle_alpha   32.127
_cell_angle_beta   32.127
_cell_angle_gamma   32.127
_symmetry_Int_Tables_number   1
_cell_volume   181.915
_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  0.793  0.793  0.793  1.0
  Na  Na1  1  0.597  0.597  0.597  1.0
  Na  Na2  1  0.207  0.207  0.207  1.0
  Na  Na3  1  0.403  0.403  0.403  1.0
  Hg  Hg4  1  0.000  0.000  0.000  1.0
  P  P5  1  0.094  0.094  0.094  1.0
  P  P6  1  0.906  0.906  0.906  1.0
[/CIF]
.