data_CaAgSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.46
_cell_length_b   4.74
_cell_length_c   6.35
_cell_angle_alpha   90.0
_cell_angle_beta   92.01
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CaAgSn2
_chemical_formula_sum   'Ca1 Ag1 Sn2'
_cell_volume   103.94
_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
  Ca  Ca1  1  0.0  0.0  0.0  1.0
  Ag  Ag0  1  0.62  0.0  0.17  1.0
  Sn  Sn2  1  0.81  0.37  0.6  1.0
  Sn  Sn3  1  0.43  0.37  0.74  1.0

data_CaAgSn2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.46
_cell_length_b   4.74
_cell_length_c   6.35
_cell_angle_alpha   90.0
_cell_angle_beta   92.01
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CaAgSn2
_chemical_formula_sum   'Ca1 Ag1 Sn2'
_cell_volume   103.94
_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
  Ca  Ca0  1  0.0  0.0  0.0  1.0
  Ag  Ag1  1  0.62  0.0  0.17  1.0
  Sn  Sn2  1  0.43  0.37  0.74  1.0
  Sn  Sn3  1  0.81  0.37  0.6  1.0

Ca Ag Sn Sn
Ca Ag Sn Sn 0 1 - o o 2 3 o o o 
CaAgSn2 crystallizes in the triclinic P1 space group. Ca(1) is bonded in a 2-coordinate geometry to two equivalent Ag(1), one Sn(1), and three equivalent Sn(2) atoms. There is one shorter (1.74 Å) and one longer (2.37 Å) Ca(1)-Ag(1) bond length. The Ca(1)-Sn(1) bond length is 3.14 Å. There are a spread of Ca(1)-Sn(2) bond distances ranging from 2.84-3.73 Å. Ag(1) is bonded in a distorted bent 120 degrees geometry to two equivalent Ca(1) and one Sn(1) atom. The Ag(1)-Sn(1) bond length is 3.28 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 4-coordinate geometry to one Ca(1), one Ag(1), and two equivalent Sn(2) atoms. There is one shorter (1.64 Å) and one longer (2.29 Å) Sn(1)-Sn(2) bond length. In the second Sn site, Sn(2) is bonded in a 5-coordinate geometry to three equivalent Ca(1) and two equivalent Sn(1) atoms.