data_BeSn2Cl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.63
_cell_length_b   6.63
_cell_length_c   6.63
_cell_angle_alpha   152.43
_cell_angle_beta   137.44
_cell_angle_gamma   51.47
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeSn2Cl
_chemical_formula_sum   'Be1 Sn2 Cl1'
_cell_volume   90.72
_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
  Sn  Sn2  1  0.58  0.0  0.13  1.0
  Sn  Sn3  1  0.0  0.41  0.84  1.0
  Cl  Cl1  1  0.0  0.0  0.97  1.0

data_BeSn2Cl
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.16
_cell_length_b   4.81
_cell_length_c   6.63
_cell_angle_alpha   111.28
_cell_angle_beta   103.79
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeSn2Cl
_chemical_formula_sum   'Be1 Sn2 Cl1'
_cell_volume   90.72
_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
  Sn  Sn1  1  0.16  0.57  0.57  1.0
  Sn  Sn2  1  0.44  0.87  0.44  1.0
  Cl  Cl3  1  0.03  0.03  0.03  1.0

Be Sn Sn Cl
Be Sn Sn Cl 0 3 o o - 1 2 + o o 
BeSn2Cl crystallizes in the triclinic P1 space group. Be(1) is bonded in a single-bond geometry to one Sn(2) and one Cl(1) atom. The Be(1)-Sn(2) bond length is 3.02 Å. The Be(1)-Cl(1) bond length is 0.20 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 6-coordinate geometry to two equivalent Sn(1), three equivalent Sn(2), and one Cl(1) atom. Both Sn(1)-Sn(1) bond lengths are 3.16 Å. There are a spread of Sn(1)-Sn(2) bond distances ranging from 2.17-3.36 Å. The Sn(1)-Cl(1) bond length is 3.12 Å. In the second Sn site, Sn(2) is bonded in a 6-coordinate geometry to one Be(1), two equivalent Sn(2), and three equivalent Sn(1) atoms. Both Sn(2)-Sn(2) bond lengths are 3.16 Å. Cl(1) is bonded in a single-bond geometry to one Be(1) and one Sn(1) atom.