The crystal structure described by Mg2Sr crystallizes in the monoclinic C2/m space group. Sr(1) is bonded in a 9-coordinate geometry to four equivalent Mg(2) and five equivalent Mg(1) atoms. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 7-coordinate geometry to five equivalent Sr(1) and two equivalent Mg(2) atoms. In the second Mg site, Mg(2) is bonded in a distorted body-centered cubic geometry to four equivalent Sr(1), two equivalent Mg(1), and two equivalent Mg(2) atoms. is represented by the CIF card [CIF]
data_SrMg2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.810
_cell_length_b   6.810
_cell_length_c   8.376
_cell_angle_alpha   71.644
_cell_angle_beta   71.644
_cell_angle_gamma   31.757
_symmetry_Int_Tables_number   1
_cell_volume   193.171
_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  0.517  0.517  0.232  1.0
  Sr  Sr1  1  0.483  0.483  0.768  1.0
  Mg  Mg2  1  0.804  0.804  0.139  1.0
  Mg  Mg3  1  0.176  0.176  0.444  1.0
  Mg  Mg4  1  0.824  0.824  0.556  1.0
  Mg  Mg5  1  0.196  0.196  0.861  1.0
[/CIF]
.
The crystal structure described by Mg2Sr crystallizes in the monoclinic C2/m space group. Sr(1) is bonded in a 9-coordinate geometry to four equivalent Mg(2) and five equivalent Mg(1) atoms. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 7-coordinate geometry to five equivalent Sr(1) and two equivalent Mg(2) atoms. In the second Mg site, Mg(2) is bonded in a distorted body-centered cubic geometry to four equivalent Sr(1), two equivalent Mg(1), and two equivalent Mg(2) atoms. is represented by the CIF card [CIF]
data_SrMg2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.810
_cell_length_b   6.810
_cell_length_c   8.376
_cell_angle_alpha   71.644
_cell_angle_beta   71.644
_cell_angle_gamma   31.757
_symmetry_Int_Tables_number   1
_cell_volume   193.171
_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  0.517  0.517  0.232  1.0
  Sr  Sr1  1  0.483  0.483  0.768  1.0
  Mg  Mg2  1  0.804  0.804  0.139  1.0
  Mg  Mg3  1  0.176  0.176  0.444  1.0
  Mg  Mg4  1  0.824  0.824  0.556  1.0
  Mg  Mg5  1  0.196  0.196  0.861  1.0
[/CIF]
.