data_Sr2AsW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.06
_cell_length_b   3.88
_cell_length_c   8.75
_cell_angle_alpha   90.0
_cell_angle_beta   90.63
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2AsW
_chemical_formula_sum   'Sr2 As1 W1'
_cell_volume   104.05
_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  0.52  0.94  0.02  1.0
  Sr  Sr2  1  0.45  0.94  0.73  1.0
  As  As0  1  0.0  0.0  0.0  1.0
  W  W3  1  0.95  0.0  0.38  1.0

data_Sr2AsW
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.06
_cell_length_b   3.88
_cell_length_c   8.75
_cell_angle_alpha   90.0
_cell_angle_beta   90.63
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2AsW
_chemical_formula_sum   'Sr2 As1 W1'
_cell_volume   104.05
_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  0.45  0.94  0.73  1.0
  Sr  Sr1  1  0.52  0.94  0.02  1.0
  As  As2  1  0.0  0.0  0.0  1.0
  W  W3  1  0.95  0.0  0.38  1.0

Sr Sr As W
Sr2WAs crystallizes in the triclinic P1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a bent 150 degrees geometry to one Sr(2), two equivalent W(1), and two equivalent As(1) atoms. The Sr(1)-Sr(2) bond length is 2.56 Å. There is one shorter (3.36 Å) and one longer (3.58 Å) Sr(1)-W(1) bond length. There is one shorter (1.51 Å) and one longer (1.61 Å) Sr(1)-As(1) bond length. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one Sr(1), four equivalent Sr(2), two equivalent W(1), and two equivalent As(1) atoms. There are two shorter (3.06 Å) and two longer (3.88 Å) Sr(2)-Sr(2) bond lengths. There is one shorter (3.44 Å) and one longer (3.49 Å) Sr(2)-W(1) bond length. There is one shorter (2.75 Å) and one longer (2.90 Å) Sr(2)-As(1) bond length. W(1) is bonded in a 9-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), four equivalent W(1), and one As(1) atom. There are two shorter (3.06 Å) and two longer (3.88 Å) W(1)-W(1) bond lengths. The W(1)-As(1) bond length is 3.30 Å. As(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Sr(1), two equivalent Sr(2), and one W(1) atom.