data_SiH
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.86
_cell_length_b   3.86
_cell_length_c   5.35
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiH
_chemical_formula_sum   'Si2 H2'
_cell_volume   68.92
_cell_formula_units_Z   2
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  Si2  1  0.0  0.23  0.37  1.0
  Si  Si3  1  0.93  0.11  0.98  1.0
  H  H0  1  0.0  0.23  0.87  1.0
  H  H1  1  0.93  0.11  0.48  1.0

data_SiH
_symmetry_space_group_name_H-M   P-1
_cell_length_a   3.86
_cell_length_b   3.86
_cell_length_c   5.35
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   SiH
_chemical_formula_sum   'Si2 H2'
_cell_volume   68.92
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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  2  0.46  0.94  0.81  1.0
  H  H1  2  0.46  0.94  0.31  1.0

Si Si H H
SiH is Cubic alpha N2-like structured and crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two hydridosilicon molecules. Si(1) is bonded in a single-bond geometry to one H(1) atom. The Si(1)-H(1) bond length is 0.73 Å. H(1) is bonded in a single-bond geometry to one Si(1) atom.