data_BeSiCl2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.65
_cell_length_b   4.65
_cell_length_c   4.13
_cell_angle_alpha   111.01
_cell_angle_beta   111.01
_cell_angle_gamma   105.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeSiCl2
_chemical_formula_sum   'Be1 Si1 Cl2'
_cell_volume   69.75
_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  0.0  1.0
  Si  Si3  1  0.83  0.0  0.0  1.0
  Cl  Cl1  1  0.2  0.85  0.67  1.0
  Cl  Cl2  1  0.2  0.15  0.67  1.0

data_BeSiCl2
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.13
_cell_length_b   4.65
_cell_length_c   4.65
_cell_angle_alpha   115.06
_cell_angle_beta   111.01
_cell_angle_gamma   99.81
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeSiCl2
_chemical_formula_sum   'Be1 Si1 Cl2'
_cell_volume   69.75
_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  0.0  1.0
  Si  Si1  1  0.0  0.0  0.83  1.0
  Cl  Cl2  1  0.51  0.85  0.05  1.0
  Cl  Cl3  1  0.82  0.15  0.35  1.0

Be Si Cl Cl