data_Mn2AlSb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.9
_cell_length_b   2.9
_cell_length_c   7.67
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mn2AlSb
_chemical_formula_sum   'Mn2 Al1 Sb1'
_cell_volume   64.35
_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  Mn1  1  0.45  0.45  0.22  1.0
  Mn  Mn2  1  0.0  0.0  0.52  1.0
  Al  Al0  1  0.0  0.0  0.4  1.0
  Sb  Sb3  1  0.45  0.45  0.37  1.0

data_Mn2AlSb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.1
_cell_length_b   4.1
_cell_length_c   7.67
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Mn2AlSb
_chemical_formula_sum   'Mn4 Al2 Sb2'
_cell_volume   128.7
_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  0.52  1.0
  Mn  Mn1  2  0.45  0.0  0.22  1.0
  Al  Al2  2  0.0  0.0  0.4  1.0
  Sb  Sb3  2  0.45  0.0  0.37  1.0

Mn Mn Al Sb
MnAlMnSb crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two stibanylidynemanganese molecules and two MnAl clusters. In each MnAl cluster, Mn(2) is bonded in a single-bond geometry to one Al(1) atom. The Mn(2)-Al(1) bond length is 0.93 Å. Al(1) is bonded in a 1-coordinate geometry to one Mn(2) atom.