The material structure described by Sr5Mg is beta-derived structured and crystallizes in the hexagonal P-62m space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to four equivalent Sr(2), six equivalent Sr(1), and two equivalent Mg(1) atoms to form distorted SrSr10Mg2 cuboctahedra that share corners with eighteen equivalent Sr(1)Sr10Mg2 cuboctahedra, edges with four equivalent Mg(1)Sr12 cuboctahedra, edges with six equivalent Sr(1)Sr10Mg2 cuboctahedra, edges with eight equivalent Sr(2)Sr9Mg3 cuboctahedra, faces with four equivalent Mg(1)Sr12 cuboctahedra, faces with eight equivalent Sr(1)Sr10Mg2 cuboctahedra, and faces with eight equivalent Sr(2)Sr9Mg3 cuboctahedra. In the second Sr site, Sr(2) is bonded to three equivalent Sr(2), six equivalent Sr(1), and three equivalent Mg(1) atoms to form SrSr9Mg3 cuboctahedra that share corners with nine equivalent Sr(2)Sr9Mg3 cuboctahedra, corners with nine equivalent Mg(1)Sr12 cuboctahedra, edges with six equivalent Sr(2)Sr9Mg3 cuboctahedra, edges with twelve equivalent Sr(1)Sr10Mg2 cuboctahedra, faces with three equivalent Mg(1)Sr12 cuboctahedra, faces with five equivalent Sr(2)Sr9Mg3 cuboctahedra, and faces with twelve equivalent Sr(1)Sr10Mg2 cuboctahedra. Mg(1) is bonded to six equivalent Sr(1) and six equivalent Sr(2) atoms to form MgSr12 cuboctahedra that share corners with eighteen equivalent Sr(2)Sr9Mg3 cuboctahedra, edges with six equivalent Mg(1)Sr12 cuboctahedra, edges with twelve equivalent Sr(1)Sr10Mg2 cuboctahedra, faces with two equivalent Mg(1)Sr12 cuboctahedra, faces with six equivalent Sr(2)Sr9Mg3 cuboctahedra, and faces with twelve equivalent Sr(1)Sr10Mg2 cuboctahedra. is represented by the CIF card [CIF]
data_Sr5Mg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.101
_cell_length_b   7.101
_cell_length_c   6.667
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   291.088
_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  0.683  0.000  0.000  1.0
  Sr  Sr1  1  0.000  0.683  0.000  1.0
  Sr  Sr2  1  0.317  0.317  0.000  1.0
  Sr  Sr3  1  0.333  0.667  0.500  1.0
  Sr  Sr4  1  0.667  0.333  0.500  1.0
  Mg  Mg5  1  0.000  0.000  0.500  1.0
[/CIF]
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The material structure described by Sr5Mg is beta-derived structured and crystallizes in the hexagonal P-62m space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to four equivalent Sr(2), six equivalent Sr(1), and two equivalent Mg(1) atoms to form distorted SrSr10Mg2 cuboctahedra that share corners with eighteen equivalent Sr(1)Sr10Mg2 cuboctahedra, edges with four equivalent Mg(1)Sr12 cuboctahedra, edges with six equivalent Sr(1)Sr10Mg2 cuboctahedra, edges with eight equivalent Sr(2)Sr9Mg3 cuboctahedra, faces with four equivalent Mg(1)Sr12 cuboctahedra, faces with eight equivalent Sr(1)Sr10Mg2 cuboctahedra, and faces with eight equivalent Sr(2)Sr9Mg3 cuboctahedra. In the second Sr site, Sr(2) is bonded to three equivalent Sr(2), six equivalent Sr(1), and three equivalent Mg(1) atoms to form SrSr9Mg3 cuboctahedra that share corners with nine equivalent Sr(2)Sr9Mg3 cuboctahedra, corners with nine equivalent Mg(1)Sr12 cuboctahedra, edges with six equivalent Sr(2)Sr9Mg3 cuboctahedra, edges with twelve equivalent Sr(1)Sr10Mg2 cuboctahedra, faces with three equivalent Mg(1)Sr12 cuboctahedra, faces with five equivalent Sr(2)Sr9Mg3 cuboctahedra, and faces with twelve equivalent Sr(1)Sr10Mg2 cuboctahedra. Mg(1) is bonded to six equivalent Sr(1) and six equivalent Sr(2) atoms to form MgSr12 cuboctahedra that share corners with eighteen equivalent Sr(2)Sr9Mg3 cuboctahedra, edges with six equivalent Mg(1)Sr12 cuboctahedra, edges with twelve equivalent Sr(1)Sr10Mg2 cuboctahedra, faces with two equivalent Mg(1)Sr12 cuboctahedra, faces with six equivalent Sr(2)Sr9Mg3 cuboctahedra, and faces with twelve equivalent Sr(1)Sr10Mg2 cuboctahedra. is represented by the CIF card [CIF]
data_Sr5Mg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.101
_cell_length_b   7.101
_cell_length_c   6.667
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   291.088
_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  0.683  0.000  0.000  1.0
  Sr  Sr1  1  0.000  0.683  0.000  1.0
  Sr  Sr2  1  0.317  0.317  0.000  1.0
  Sr  Sr3  1  0.333  0.667  0.500  1.0
  Sr  Sr4  1  0.667  0.333  0.500  1.0
  Mg  Mg5  1  0.000  0.000  0.500  1.0
[/CIF]
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