data_Sr3As
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.31
_cell_length_b   11.31
_cell_length_c   11.31
_cell_angle_alpha   22.98
_cell_angle_beta   22.98
_cell_angle_gamma   22.98
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr3As
_chemical_formula_sum   'Sr3 As1'
_cell_volume   193.83
_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  Sr1  1  0.0  0.0  0.65  1.0
  Sr  Sr2  1  0.0  0.0  0.52  1.0
  Sr  Sr3  1  0.0  0.0  0.39  1.0
  As  As0  1  0.0  0.0  0.0  1.0

data_Sr3As
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.81
_cell_length_b   4.51
_cell_length_c   11.31
_cell_angle_alpha   90.0
_cell_angle_beta   103.3
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Sr3As
_chemical_formula_sum   'Sr6 As2'
_cell_volume   387.66
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  2  -0.0  0.0  0.48  1.0
  Sr  Sr1  2  -0.0  0.0  0.61  1.0
  Sr  Sr2  2  -0.0  0.0  0.35  1.0
  As  As3  2  0.0  0.0  0.0  1.0

Sr Sr Sr As
Sr Sr Sr As 0 1 o o o 0 3 o o + 1 2 o o o 2 3 o o o 3 3 o + - 3 3 + - o 3 3 + o - 
(Sr)3As is Cyanogen Chloride-derived structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two 7440-38-2 atoms and two Sr clusters. In each Sr cluster, there are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a single-bond geometry to one Sr(2) atom. The Sr(1)-Sr(2) bond length is 1.47 Å. In the second Sr site, Sr(2) is bonded in a linear geometry to one Sr(1) and one Sr(3) atom. The Sr(2)-Sr(3) bond length is 1.47 Å. In the third Sr site, Sr(3) is bonded in a single-bond geometry to one Sr(2) atom.