data_LaAlGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.2
_cell_length_b   9.2
_cell_length_c   9.2
_cell_angle_alpha   21.19
_cell_angle_beta   21.19
_cell_angle_gamma   21.19
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaAlGe2
_chemical_formula_sum   'La1 Al1 Ge2'
_cell_volume   89.17
_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
  La  La3  1  0.0  0.0  0.49  1.0
  Al  Al0  1  0.0  0.0  0.0  1.0
  Ge  Ge1  1  0.0  0.0  0.9  1.0
  Ge  Ge2  1  0.0  0.0  0.08  1.0

data_LaAlGe2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.86
_cell_length_b   3.38
_cell_length_c   9.2
_cell_angle_alpha   90.0
_cell_angle_beta   102.26
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   LaAlGe2
_chemical_formula_sum   'La2 Al2 Ge4'
_cell_volume   178.33
_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
  La  La0  2  -0.0  0.0  0.51  1.0
  Al  Al1  2  -0.0  0.0  0.0  1.0
  Ge  Ge2  2  -0.0  0.0  0.92  1.0
  Ge  Ge3  2  -0.0  0.0  0.1  1.0

La Al Ge Ge
La Al Ge Ge 0 0 o + - 0 0 + - o 0 0 + o - 0 3 o o o 0 2 o o o 1 3 o o o 1 2 o o - 
LaAlGe2 crystallizes in the monoclinic Cm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded to six La(1,1); one Ge(1); and one Ge(2) atom to form a mixture of distorted corner and edge-sharing LaLa6Ge2 hexagonal bipyramids. All La(1)-La(1,1) bond lengths are 3.38 Å. The La(1)-Ge(1) bond length is 3.79 Å. The La(1)-Ge(2) bond length is 3.79 Å. In the second La site, La(1) is bonded to six La(1,1); one Ge(1); and one Ge(2) atom to form a mixture of distorted corner and edge-sharing LaLa6Ge2 hexagonal bipyramids. Both La(1)-La(1) bond lengths are 3.38 Å. The La(1)-Ge(1) bond length is 3.79 Å. The La(1)-Ge(2) bond length is 3.79 Å. Al(1) is bonded in a linear geometry to one Ge(1) and one Ge(2) atom. The Al(1)-Ge(1) bond length is 0.91 Å. The Al(1)-Ge(2) bond length is 0.72 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a single-bond geometry to one La(1) and one Al(1) atom. In the second Ge site, Ge(2) is bonded in a single-bond geometry to one La(1) and one Al(1) atom.