The structure described by Mg2Sr crystallizes in the orthorhombic Cmcm space group. Sr(1) is bonded to two equivalent Sr(1) and ten equivalent Mg(1) atoms to form a mixture of distorted face and edge-sharing SrSr2Mg10 cuboctahedra. Mg(1) is bonded in a 5-coordinate geometry to five equivalent Sr(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrMg2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.108
_cell_length_b   6.108
_cell_length_c   5.699
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   118.995
_symmetry_Int_Tables_number   1
_cell_volume   185.991
_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  0.687  0.687  0.750  1.0
  Sr  Sr1  1  0.313  0.313  0.250  1.0
  Mg  Mg2  1  0.985  0.333  0.750  1.0
  Mg  Mg3  1  0.333  0.985  0.750  1.0
  Mg  Mg4  1  0.667  0.015  0.250  1.0
  Mg  Mg5  1  0.015  0.667  0.250  1.0
[/CIF]
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The structure described by Mg2Sr crystallizes in the orthorhombic Cmcm space group. Sr(1) is bonded to two equivalent Sr(1) and ten equivalent Mg(1) atoms to form a mixture of distorted face and edge-sharing SrSr2Mg10 cuboctahedra. Mg(1) is bonded in a 5-coordinate geometry to five equivalent Sr(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrMg2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.108
_cell_length_b   6.108
_cell_length_c   5.699
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   118.995
_symmetry_Int_Tables_number   1
_cell_volume   185.991
_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  0.687  0.687  0.750  1.0
  Sr  Sr1  1  0.313  0.313  0.250  1.0
  Mg  Mg2  1  0.985  0.333  0.750  1.0
  Mg  Mg3  1  0.333  0.985  0.750  1.0
  Mg  Mg4  1  0.667  0.015  0.250  1.0
  Mg  Mg5  1  0.015  0.667  0.250  1.0
[/CIF]
.