The crystal structure described by SrMg crystallizes in the orthorhombic Amm2 space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to two equivalent Sr(3), two equivalent Mg(1), and four equivalent Mg(2) atoms. In the second Sr site, Sr(2) is bonded in a 4-coordinate geometry to four equivalent Sr(3), two equivalent Mg(1), and two equivalent Mg(3) atoms. In the third Sr site, Sr(3) is bonded to two equivalent Sr(1), two equivalent Sr(3), four equivalent Sr(2), two equivalent Mg(2), and two equivalent Mg(3) atoms to form a mixture of distorted face and corner-sharing SrSr8Mg4 cuboctahedra. There are three inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 4-coordinate geometry to two equivalent Sr(1) and two equivalent Sr(2) atoms. In the second Mg site, Mg(2) is bonded in a 8-coordinate geometry to two equivalent Sr(3), four equivalent Sr(1), and two equivalent Mg(3) atoms. In the third Mg site, Mg(3) is bonded in a 6-coordinate geometry to two equivalent Sr(2), two equivalent Sr(3), and two equivalent Mg(2) atoms. is represented by the CIF file [CIF]
data_SrMg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.730
_cell_length_b   9.730
_cell_length_c   6.006
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   156.420
_symmetry_Int_Tables_number   1
_cell_volume   227.479
_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  0.980  0.020  0.000  1.0
  Sr  Sr1  1  0.684  0.316  0.000  1.0
  Sr  Sr2  1  0.110  0.890  0.500  1.0
  Mg  Mg3  1  0.334  0.666  0.000  1.0
  Mg  Mg4  1  0.433  0.567  0.500  1.0
  Mg  Mg5  1  0.793  0.207  0.500  1.0
[/CIF]
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The crystal structure described by SrMg crystallizes in the orthorhombic Amm2 space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to two equivalent Sr(3), two equivalent Mg(1), and four equivalent Mg(2) atoms. In the second Sr site, Sr(2) is bonded in a 4-coordinate geometry to four equivalent Sr(3), two equivalent Mg(1), and two equivalent Mg(3) atoms. In the third Sr site, Sr(3) is bonded to two equivalent Sr(1), two equivalent Sr(3), four equivalent Sr(2), two equivalent Mg(2), and two equivalent Mg(3) atoms to form a mixture of distorted face and corner-sharing SrSr8Mg4 cuboctahedra. There are three inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 4-coordinate geometry to two equivalent Sr(1) and two equivalent Sr(2) atoms. In the second Mg site, Mg(2) is bonded in a 8-coordinate geometry to two equivalent Sr(3), four equivalent Sr(1), and two equivalent Mg(3) atoms. In the third Mg site, Mg(3) is bonded in a 6-coordinate geometry to two equivalent Sr(2), two equivalent Sr(3), and two equivalent Mg(2) atoms. is represented by the CIF file [CIF]
data_SrMg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.730
_cell_length_b   9.730
_cell_length_c   6.006
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   156.420
_symmetry_Int_Tables_number   1
_cell_volume   227.479
_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  0.980  0.020  0.000  1.0
  Sr  Sr1  1  0.684  0.316  0.000  1.0
  Sr  Sr2  1  0.110  0.890  0.500  1.0
  Mg  Mg3  1  0.334  0.666  0.000  1.0
  Mg  Mg4  1  0.433  0.567  0.500  1.0
  Mg  Mg5  1  0.793  0.207  0.500  1.0
[/CIF]
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