The material described by Mg2P crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted square co-planar geometry to four equivalent P(1) atoms. In the second Mg site, Mg(2) is bonded in a 4-coordinate geometry to four equivalent P(1) atoms. P(1) is bonded in a 8-coordinate geometry to four equivalent Mg(1) and four equivalent Mg(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg2P
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.680
_cell_length_b   5.680
_cell_length_c   5.577
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   140.865
_symmetry_Int_Tables_number   1
_cell_volume   113.543
_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  0.500  0.500  0.500  1.0
  Mg  Mg1  1  0.796  0.204  0.750  1.0
  Mg  Mg2  1  0.500  0.500  0.000  1.0
  Mg  Mg3  1  0.204  0.796  0.250  1.0
  P  P4  1  0.126  0.874  0.750  1.0
  P  P5  1  0.874  0.126  0.250  1.0
[/CIF]
.
The material described by Mg2P crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted square co-planar geometry to four equivalent P(1) atoms. In the second Mg site, Mg(2) is bonded in a 4-coordinate geometry to four equivalent P(1) atoms. P(1) is bonded in a 8-coordinate geometry to four equivalent Mg(1) and four equivalent Mg(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg2P
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.680
_cell_length_b   5.680
_cell_length_c   5.577
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   140.865
_symmetry_Int_Tables_number   1
_cell_volume   113.543
_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  0.500  0.500  0.500  1.0
  Mg  Mg1  1  0.796  0.204  0.750  1.0
  Mg  Mg2  1  0.500  0.500  0.000  1.0
  Mg  Mg3  1  0.204  0.796  0.250  1.0
  P  P4  1  0.126  0.874  0.750  1.0
  P  P5  1  0.874  0.126  0.250  1.0
[/CIF]
.