data_Li2BeGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.67
_cell_length_b   2.67
_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   Li2BeGe
_chemical_formula_sum   'Li2 Be1 Ge1'
_cell_volume   56.22
_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
  Li  Li2  1  0.33  0.33  0.0  1.0
  Li  Li3  1  0.33  0.33  0.91  1.0
  Be  Be0  1  0.0  0.0  0.0  1.0
  Ge  Ge1  1  0.0  0.0  0.96  1.0

data_Li2BeGe
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.77
_cell_length_b   3.77
_cell_length_c   7.91
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Li2BeGe
_chemical_formula_sum   'Li4 Be2 Ge2'
_cell_volume   112.44
_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
  Li  Li0  2  0.33  0.0  0.0  1.0
  Li  Li1  2  0.33  0.0  0.91  1.0
  Be  Be2  2  0.0  0.0  0.0  1.0
  Ge  Ge3  2  0.0  0.0  0.96  1.0

Li Li Be Ge
(Li)2BeGe crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two lithium dimer molecules and two BeGe clusters. In each BeGe cluster, Be(1) is bonded in a single-bond geometry to one Ge(1) atom. The Be(1)-Ge(1) bond length is 0.34 Å. Ge(1) is bonded in a single-bond geometry to one Be(1) atom.