data_SrSiAg2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.09
_cell_length_b   5.09
_cell_length_c   5.09
_cell_angle_alpha   126.48
_cell_angle_beta   116.23
_cell_angle_gamma   87.91
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrSiAg2
_chemical_formula_sum   'Sr1 Si1 Ag2'
_cell_volume   90.39
_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
  Sr  Sr3  1  0.0  0.0  0.67  1.0
  Si  Si2  1  0.0  0.0  0.0  1.0
  Ag  Ag0  1  0.29  0.0  0.51  1.0
  Ag  Ag1  1  0.0  0.69  0.15  1.0

data_SrSiAg2
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.58
_cell_length_b   5.09
_cell_length_c   5.09
_cell_angle_alpha   63.77
_cell_angle_beta   63.24
_cell_angle_gamma   63.24
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrSiAg2
_chemical_formula_sum   'Sr1 Si1 Ag2'
_cell_volume   90.39
_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
  Sr  Sr0  1  0.67  -0.0  0.33  1.0
  Si  Si1  1  0.0  0.0  0.0  1.0
  Ag  Ag2  1  0.15  -0.0  0.54  1.0
  Ag  Ag3  1  0.22  0.29  0.49  1.0

Sr Si Ag Ag
Sr Si Ag Ag 0 3 o - o 0 2 o o o 0 1 o o + 2 3 o - o 
SrAg2Si crystallizes in the triclinic P1 space group. Sr(1) is bonded in a 5-coordinate geometry to two equivalent Ag(1), two equivalent Ag(2), and one Si(1) atom. There is one shorter (1.96 Å) and one longer (3.33 Å) Sr(1)-Ag(1) bond length. There is one shorter (2.10 Å) and one longer (2.85 Å) Sr(1)-Ag(2) bond length. The Sr(1)-Si(1) bond length is 1.70 Å. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 2-coordinate geometry to two equivalent Sr(1) and one Ag(2) atom. The Ag(1)-Ag(2) bond length is 1.55 Å. In the second Ag site, Ag(2) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one Ag(1), and one Si(1) atom. The Ag(2)-Si(1) bond length is 2.14 Å. Si(1) is bonded in a single-bond geometry to one Sr(1) and one Ag(2) atom.