The compound described by MgP crystallizes in the trigonal R32 space group. Mg(1) is bonded in a 6-coordinate geometry to two equivalent P(2) and four equivalent P(1) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 7-coordinate geometry to six equivalent Mg(1) and one P(1) atom. In the second P site, P(2) is bonded to six equivalent Mg(1) atoms to form distorted corner-sharing PMg6 pentagonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgP
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.910
_cell_length_b   4.910
_cell_length_c   4.910
_cell_angle_alpha   86.338
_cell_angle_beta   86.338
_cell_angle_gamma   86.338
_symmetry_Int_Tables_number   1
_cell_volume   117.701
_cell_formula_units_Z   3
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  0.377  0.623  0.000  1.0
  Mg  Mg1  1  0.623  0.000  0.377  1.0
  Mg  Mg2  1  0.000  0.377  0.623  1.0
  P  P3  1  0.123  0.123  0.123  1.0
  P  P4  1  0.500  0.500  0.500  1.0
  P  P5  1  0.877  0.877  0.877  1.0
[/CIF]
.
The compound described by MgP crystallizes in the trigonal R32 space group. Mg(1) is bonded in a 6-coordinate geometry to two equivalent P(2) and four equivalent P(1) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 7-coordinate geometry to six equivalent Mg(1) and one P(1) atom. In the second P site, P(2) is bonded to six equivalent Mg(1) atoms to form distorted corner-sharing PMg6 pentagonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgP
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.910
_cell_length_b   4.910
_cell_length_c   4.910
_cell_angle_alpha   86.338
_cell_angle_beta   86.338
_cell_angle_gamma   86.338
_symmetry_Int_Tables_number   1
_cell_volume   117.701
_cell_formula_units_Z   3
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  0.377  0.623  0.000  1.0
  Mg  Mg1  1  0.623  0.000  0.377  1.0
  Mg  Mg2  1  0.000  0.377  0.623  1.0
  P  P3  1  0.123  0.123  0.123  1.0
  P  P4  1  0.500  0.500  0.500  1.0
  P  P5  1  0.877  0.877  0.877  1.0
[/CIF]
.