data_BeGe2Cl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.44
_cell_length_b   5.44
_cell_length_c   5.44
_cell_angle_alpha   148.12
_cell_angle_beta   117.36
_cell_angle_gamma   72.02
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeGe2Cl
_chemical_formula_sum   'Be1 Ge2 Cl1'
_cell_volume   74.21
_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
  Be  Be0  1  0.0  0.0  0.25  1.0
  Ge  Ge2  1  0.0  0.0  0.71  1.0
  Ge  Ge3  1  0.0  0.83  0.76  1.0
  Cl  Cl1  1  0.49  0.0  0.86  1.0

data_BeGe2Cl
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.99
_cell_length_b   5.44
_cell_length_c   5.44
_cell_angle_alpha   62.64
_cell_angle_beta   74.06
_cell_angle_gamma   74.06
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeGe2Cl
_chemical_formula_sum   'Be1 Ge2 Cl1'
_cell_volume   74.21
_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
  Be  Be0  1  0.0  0.0  0.25  1.0
  Ge  Ge1  1  0.0  -0.0  0.71  1.0
  Ge  Ge2  1  0.83  -0.0  0.94  1.0
  Cl  Cl3  1  0.0  0.51  0.86  1.0

Be Ge Ge Cl
BeGe2Cl crystallizes in the triclinic P1 space group. Be(1) is bonded in a 4-coordinate geometry to one Ge(1), two equivalent Ge(2), and one Cl(1) atom. The Be(1)-Ge(1) bond length is 2.52 Å. There is one shorter (1.91 Å) and one longer (2.58 Å) Be(1)-Ge(2) bond length. The Be(1)-Cl(1) bond length is 2.60 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a distorted T-shaped geometry to one Be(1), one Ge(2), and one Cl(1) atom. The Ge(1)-Ge(2) bond length is 1.18 Å. The Ge(1)-Cl(1) bond length is 2.42 Å. In the second Ge site, Ge(2) is bonded in a 2-coordinate geometry to two equivalent Be(1), one Ge(1), and two equivalent Cl(1) atoms. There is one shorter (2.76 Å) and one longer (2.79 Å) Ge(2)-Cl(1) bond length. Cl(1) is bonded in a 4-coordinate geometry to one Be(1), one Ge(1), and two equivalent Ge(2) atoms.