data_MgCrPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.77
_cell_length_b   2.77
_cell_length_c   7.91
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgCrPt2
_chemical_formula_sum   'Mg1 Cr1 Pt2'
_cell_volume   60.8
_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  0.95  1.0
  Cr  Cr0  1  0.39  0.39  0.82  1.0
  Pt  Pt2  1  0.39  0.39  0.87  1.0
  Pt  Pt3  1  0.0  0.0  0.12  1.0

data_MgCrPt2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.92
_cell_length_b   3.92
_cell_length_c   7.91
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   MgCrPt2
_chemical_formula_sum   'Mg2 Cr2 Pt4'
_cell_volume   121.59
_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  0.95  1.0
  Cr  Cr1  2  0.39  0.0  0.82  1.0
  Pt  Pt2  2  0.0  0.0  0.12  1.0
  Pt  Pt3  2  0.39  0.0  0.87  1.0

Mg Cr Pt Pt
MgCrPt2 crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two MgCrPt2 clusters. Mg(1) is bonded in a 2-coordinate geometry to one Pt(1) and one Pt(2) atom. The Mg(1)-Pt(1) bond length is 1.65 Å. The Mg(1)-Pt(2) bond length is 1.34 Å. Cr(1) is bonded in a single-bond geometry to one Pt(1) atom. The Cr(1)-Pt(1) bond length is 0.39 Å. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a single-bond geometry to one Mg(1) and one Cr(1) atom. In the second Pt site, Pt(2) is bonded in a single-bond geometry to one Mg(1) atom.