data_MgPt2Cl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.51
_cell_length_b   3.51
_cell_length_c   7.06
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgPt2Cl
_chemical_formula_sum   'Mg1 Pt2 Cl1'
_cell_volume   86.93
_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  0.0  0.0  0.36  1.0
  Pt  Pt2  1  0.75  0.75  0.26  1.0
  Pt  Pt3  1  0.0  0.0  0.89  1.0
  Cl  Cl0  1  0.75  0.75  0.07  1.0

data_MgPt2Cl
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.96
_cell_length_b   4.96
_cell_length_c   7.06
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   MgPt2Cl
_chemical_formula_sum   'Mg2 Pt4 Cl2'
_cell_volume   173.87
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  2  0.0  0.0  0.36  1.0
  Pt  Pt1  2  0.0  0.0  0.89  1.0
  Pt  Pt2  2  0.25  0.5  0.26  1.0
  Cl  Cl3  2  0.25  0.5  0.07  1.0

Mg Pt Pt Cl
MgPt2Cl is alpha Niobium phosphide-derived structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two MgPt2Cl clusters. Mg(1) is bonded in a single-bond geometry to one Pt(1) atom. The Mg(1)-Pt(1) bond length is 1.41 Å. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a bent 120 degrees geometry to one Mg(1) and one Cl(1) atom. The Pt(1)-Cl(1) bond length is 1.33 Å. In the second Pt site, Pt(2) is bonded in a single-bond geometry to one Cl(1) atom. The Pt(2)-Cl(1) bond length is 1.75 Å. Cl(1) is bonded in a distorted bent 150 degrees geometry to one Pt(1) and one Pt(2) atom.