data_Sr2BeW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.75
_cell_length_b   5.75
_cell_length_c   3.16
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   107.56
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2BeW
_chemical_formula_sum   'Sr2 Be1 W1'
_cell_volume   99.5
_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  0.7  0.32  0.58  1.0
  Sr  Sr2  1  0.7  0.68  0.58  1.0
  Be  Be0  1  0.0  0.0  0.0  1.0
  W  W3  1  0.4  0.0  0.0  1.0

data_Sr2BeW
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.16
_cell_length_b   5.75
_cell_length_c   5.75
_cell_angle_alpha   107.56
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2BeW
_chemical_formula_sum   'Sr2 Be1 W1'
_cell_volume   99.5
_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  0.58  0.7  0.32  1.0
  Sr  Sr1  1  0.58  0.7  0.68  1.0
  Be  Be2  1  0.0  0.0  0.0  1.0
  W  W3  1  -0.0  0.4  0.0  1.0

Sr Sr Be W
Sr Sr Be W 0 3 o o + 0 3 o o o 0 1 o o o 1 2 + + + 1 2 + + o 2 3 o o o 
Sr2BeW crystallizes in the triclinic P1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 2-coordinate geometry to one Sr(2), two equivalent Be(1), and two equivalent W(1) atoms. The Sr(1)-Sr(2) bond length is 2.09 Å. There is one shorter (3.17 Å) and one longer (3.41 Å) Sr(1)-Be(1) bond length. There is one shorter (2.49 Å) and one longer (2.79 Å) Sr(1)-W(1) bond length. In the second Sr site, Sr(2) is bonded in a 5-coordinate geometry to one Sr(1), two equivalent Be(1), and two equivalent W(1) atoms. There is one shorter (2.49 Å) and one longer (2.79 Å) Sr(2)-Be(1) bond length. There is one shorter (3.17 Å) and one longer (3.41 Å) Sr(2)-W(1) bond length. Be(1) is bonded in a 5-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), and one W(1) atom. The Be(1)-W(1) bond length is 2.28 Å. W(1) is bonded in a 3-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), and one Be(1) atom.