data_Mg2AsP
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.4
_cell_length_b   5.59
_cell_length_c   3.13
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg2AsP
_chemical_formula_sum   'Mg2 As1 P1'
_cell_volume   77.08
_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
  Mg  Mg1  1  0.2  0.8  0.81  1.0
  Mg  Mg2  1  0.0  0.0  0.11  1.0
  As  As0  1  0.2  0.0  0.68  1.0
  P  P3  1  0.0  0.8  0.22  1.0

data_Mg2AsP
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.13
_cell_length_b   4.4
_cell_length_c   5.59
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg2AsP
_chemical_formula_sum   'Mg2 As1 P1'
_cell_volume   77.08
_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
  Mg  Mg0  1  0.11  0.0  0.0  1.0
  Mg  Mg1  1  0.81  0.2  0.8  1.0
  As  As2  1  0.68  0.2  0.0  1.0
  P  P3  1  0.22  0.0  0.8  1.0

Mg Mg As P
MgAsMgP crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one MgAs cluster and one MgP cluster. In the MgAs cluster, Mg(1) is bonded in a 1-coordinate geometry to one As(1) atom. The Mg(1)-As(1) bond length is 1.21 Å. As(1) is bonded in a distorted single-bond geometry to one Mg(1) atom. In the MgP cluster, Mg(2) is bonded in a distorted single-bond geometry to one P(1) atom. The Mg(2)-P(1) bond length is 1.19 Å. P(1) is bonded in a 1-coordinate geometry to one Mg(2) atom.