The structure described by Sr is alpha Samarium structured and crystallizes in the monoclinic C2/m space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to six equivalent Sr(1) and six equivalent Sr(2) atoms to form a mixture of corner, face, and edge-sharing SrSr12 cuboctahedra. In the second Sr site, Sr(2) is bonded to three equivalent Sr(1) and nine equivalent Sr(2) atoms to form a mixture of corner, face, and edge-sharing SrSr12 cuboctahedra. is represented by the CIF file [CIF]
data_Sr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.322
_cell_length_b   4.327
_cell_length_c   10.877
_cell_angle_alpha   89.939
_cell_angle_beta   78.430
_cell_angle_gamma   119.969
_symmetry_Int_Tables_number   1
_cell_volume   171.400
_cell_formula_units_Z   3
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  0.000  0.000  1.000  1.0
  Sr  Sr1  1  0.445  0.222  0.333  1.0
  Sr  Sr2  1  0.555  0.778  0.667  1.0
[/CIF]
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The structure described by Sr is alpha Samarium structured and crystallizes in the monoclinic C2/m space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to six equivalent Sr(1) and six equivalent Sr(2) atoms to form a mixture of corner, face, and edge-sharing SrSr12 cuboctahedra. In the second Sr site, Sr(2) is bonded to three equivalent Sr(1) and nine equivalent Sr(2) atoms to form a mixture of corner, face, and edge-sharing SrSr12 cuboctahedra. is represented by the CIF file [CIF]
data_Sr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.322
_cell_length_b   4.327
_cell_length_c   10.877
_cell_angle_alpha   89.939
_cell_angle_beta   78.430
_cell_angle_gamma   119.969
_symmetry_Int_Tables_number   1
_cell_volume   171.400
_cell_formula_units_Z   3
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  0.000  0.000  1.000  1.0
  Sr  Sr1  1  0.445  0.222  0.333  1.0
  Sr  Sr2  1  0.555  0.778  0.667  1.0
[/CIF]
.