The material described by SrAs3 crystallizes in the monoclinic C2/m space group. Sr(1) is bonded in a 9-coordinate geometry to one As(2) and eight equivalent As(1) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 6-coordinate geometry to four equivalent Sr(1), one As(1), and one As(2) atom. In the second As site, As(2) is bonded in a distorted tetrahedral geometry to one Sr(1), one As(2), and two equivalent As(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrAs3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.930
_cell_length_b   6.189
_cell_length_c   6.189
_cell_angle_alpha   77.157
_cell_angle_beta   72.358
_cell_angle_gamma   72.358
_symmetry_Int_Tables_number   1
_cell_volume   204.158
_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
  Sr  Sr0  1  0.335  0.336  0.336  1.0
  Sr  Sr1  1  0.665  0.664  0.664  1.0
  As  As2  1  0.807  0.128  0.594  1.0
  As  As3  1  0.193  0.406  0.872  1.0
  As  As4  1  0.789  0.003  0.003  1.0
  As  As5  1  0.211  0.997  0.997  1.0
  As  As6  1  0.807  0.594  0.128  1.0
  As  As7  1  0.193  0.872  0.406  1.0
[/CIF]
.
The material described by SrAs3 crystallizes in the monoclinic C2/m space group. Sr(1) is bonded in a 9-coordinate geometry to one As(2) and eight equivalent As(1) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 6-coordinate geometry to four equivalent Sr(1), one As(1), and one As(2) atom. In the second As site, As(2) is bonded in a distorted tetrahedral geometry to one Sr(1), one As(2), and two equivalent As(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrAs3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.930
_cell_length_b   6.189
_cell_length_c   6.189
_cell_angle_alpha   77.157
_cell_angle_beta   72.358
_cell_angle_gamma   72.358
_symmetry_Int_Tables_number   1
_cell_volume   204.158
_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
  Sr  Sr0  1  0.335  0.336  0.336  1.0
  Sr  Sr1  1  0.665  0.664  0.664  1.0
  As  As2  1  0.807  0.128  0.594  1.0
  As  As3  1  0.193  0.406  0.872  1.0
  As  As4  1  0.789  0.003  0.003  1.0
  As  As5  1  0.211  0.997  0.997  1.0
  As  As6  1  0.807  0.594  0.128  1.0
  As  As7  1  0.193  0.872  0.406  1.0
[/CIF]
.