data_MnAl2Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.83
_cell_length_b   2.83
_cell_length_c   6.95
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MnAl2Pt
_chemical_formula_sum   'Mn1 Al2 Pt1'
_cell_volume   55.54
_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
  Mn  Mn2  1  0.0  0.0  0.0  1.0
  Al  Al0  1  0.41  0.41  0.28  1.0
  Al  Al1  1  0.41  0.41  0.67  1.0
  Pt  Pt3  1  0.0  0.0  0.48  1.0

data_MnAl2Pt
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.0
_cell_length_b   4.0
_cell_length_c   6.95
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   MnAl2Pt
_chemical_formula_sum   'Mn2 Al4 Pt2'
_cell_volume   111.08
_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
  Mn  Mn0  2  0.0  0.0  0.0  1.0
  Al  Al1  2  0.41  0.0  0.28  1.0
  Al  Al2  2  0.41  0.0  0.67  1.0
  Pt  Pt3  2  0.0  0.0  0.48  1.0

Mn Al Al Pt
MnPtAl2 crystallizes in the monoclinic Cm space group. Mn(1) is bonded in a 12-coordinate geometry to four equivalent Mn(1), four equivalent Al(1), and four equivalent Al(2) atoms. All Mn(1)-Mn(1) bond lengths are 2.83 Å. There are a spread of Mn(1)-Al(1) bond distances ranging from 2.57-3.06 Å. There are a spread of Mn(1)-Al(2) bond distances ranging from 2.84-3.29 Å. Pt(1) is bonded in a 8-coordinate geometry to four equivalent Al(1) and four equivalent Al(2) atoms. There are a spread of Pt(1)-Al(1) bond distances ranging from 2.13-2.70 Å. There are a spread of Pt(1)-Al(2) bond distances ranging from 2.13-2.70 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a 3-coordinate geometry to four equivalent Mn(1) and four equivalent Pt(1) atoms. In the second Al site, Al(2) is bonded in a 3-coordinate geometry to four equivalent Mn(1) and four equivalent Pt(1) atoms.