The material described by MgHg3 is Sodium arsenide structured and crystallizes in the hexagonal P6_3/mmc space group. Mg(1) is bonded in a 11-coordinate geometry to three equivalent Hg(2) and eight equivalent Hg(1) atoms. There are two inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a 1-coordinate geometry to four equivalent Mg(1) atoms. In the second Hg site, Hg(2) is bonded in a trigonal planar geometry to three equivalent Mg(1) atoms. is represented by the CIF file [CIF]
data_MgHg3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.934
_cell_length_b   4.934
_cell_length_c   8.968
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   189.089
_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
  Mg  Mg0  1  0.333  0.667  0.250  1.0
  Mg  Mg1  1  0.667  0.333  0.750  1.0
  Hg  Hg2  1  0.333  0.667  0.574  1.0
  Hg  Hg3  1  0.667  0.333  0.426  1.0
  Hg  Hg4  1  0.667  0.333  0.074  1.0
  Hg  Hg5  1  0.333  0.667  0.926  1.0
  Hg  Hg6  1  0.000  0.000  0.250  1.0
  Hg  Hg7  1  0.000  0.000  0.750  1.0
[/CIF]
.
The material described by MgHg3 is Sodium arsenide structured and crystallizes in the hexagonal P6_3/mmc space group. Mg(1) is bonded in a 11-coordinate geometry to three equivalent Hg(2) and eight equivalent Hg(1) atoms. There are two inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a 1-coordinate geometry to four equivalent Mg(1) atoms. In the second Hg site, Hg(2) is bonded in a trigonal planar geometry to three equivalent Mg(1) atoms. is represented by the CIF file [CIF]
data_MgHg3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.934
_cell_length_b   4.934
_cell_length_c   8.968
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   189.089
_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
  Mg  Mg0  1  0.333  0.667  0.250  1.0
  Mg  Mg1  1  0.667  0.333  0.750  1.0
  Hg  Hg2  1  0.333  0.667  0.574  1.0
  Hg  Hg3  1  0.667  0.333  0.426  1.0
  Hg  Hg4  1  0.667  0.333  0.074  1.0
  Hg  Hg5  1  0.333  0.667  0.926  1.0
  Hg  Hg6  1  0.000  0.000  0.250  1.0
  Hg  Hg7  1  0.000  0.000  0.750  1.0
[/CIF]
.