data_MnAl2Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.02
_cell_length_b   5.02
_cell_length_c   5.02
_cell_angle_alpha   143.26
_cell_angle_beta   127.54
_cell_angle_gamma   65.75
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MnAl2Ge
_chemical_formula_sum   'Mn1 Al2 Ge1'
_cell_volume   59.22
_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  Mn3  1  0.0  0.0  0.28  1.0
  Al  Al0  1  0.0  0.22  0.09  1.0
  Al  Al1  1  0.0  0.0  0.14  1.0
  Ge  Ge2  1  0.0  0.22  0.15  1.0

data_MnAl2Ge
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.16
_cell_length_b   4.44
_cell_length_c   5.02
_cell_angle_alpha   116.23
_cell_angle_beta   108.37
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MnAl2Ge
_chemical_formula_sum   'Mn1 Al2 Ge1'
_cell_volume   59.22
_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  Mn0  1  0.0  0.28  0.28  1.0
  Al  Al1  1  0.0  0.14  0.14  1.0
  Al  Al2  1  0.78  0.87  0.87  1.0
  Ge  Ge3  1  0.78  0.93  0.93  1.0

Mn Al Al Ge
Mn Al Al Ge 0 2 o o o 1 3 o o o 
MnAl2Ge crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one MnAl2Ge cluster. Mn(1) is bonded in a single-bond geometry to one Al(2) atom. The Mn(1)-Al(2) bond length is 0.70 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a single-bond geometry to one Ge(1) atom. The Al(1)-Ge(1) bond length is 0.32 Å. In the second Al site, Al(2) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one Ge(1) atom. The Al(2)-Ge(1) bond length is 1.05 Å. Ge(1) is bonded in a distorted bent 150 degrees geometry to one Al(1) and one Al(2) atom.