data_SiAg2B
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.26
_cell_length_b   5.26
_cell_length_c   5.26
_cell_angle_alpha   148.83
_cell_angle_beta   127.94
_cell_angle_gamma   61.93
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiAg2B
_chemical_formula_sum   'Si1 Ag2 B1'
_cell_volume   58.94
_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
  Si  Si3  1  0.0  0.0  0.51  1.0
  Ag  Ag0  1  0.41  0.0  0.77  1.0
  Ag  Ag1  1  0.0  0.31  0.74  1.0
  B  B2  1  0.0  0.0  0.0  1.0

data_SiAg2B
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.83
_cell_length_b   4.62
_cell_length_c   5.26
_cell_angle_alpha   116.03
_cell_angle_beta   105.58
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiAg2B
_chemical_formula_sum   'Si1 Ag2 B1'
_cell_volume   58.94
_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
  Si  Si0  1  0.0  0.51  0.51  1.0
  Ag  Ag1  1  0.0  0.77  0.36  1.0
  Ag  Ag2  1  0.69  0.43  0.43  1.0
  B  B3  1  0.0  0.0  0.0  1.0

Si Ag Ag B
Ag2BSi crystallizes in the triclinic P1 space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 2-coordinate geometry to one B(1) and one Si(1) atom. The Ag(1)-B(1) bond length is 2.53 Å. The Ag(1)-Si(1) bond length is 1.72 Å. In the second Ag site, Ag(2) is bonded in a single-bond geometry to two equivalent B(1) and one Si(1) atom. There is one shorter (2.56 Å) and one longer (2.63 Å) Ag(2)-B(1) bond length. The Ag(2)-Si(1) bond length is 0.87 Å. B(1) is bonded in a 4-coordinate geometry to one Ag(1), two equivalent Ag(2), and one Si(1) atom. The B(1)-Si(1) bond length is 2.56 Å. Si(1) is bonded in a distorted single-bond geometry to one Ag(1), one Ag(2), and one B(1) atom.