The material described by RbSrMg6 crystallizes in the orthorhombic Amm2 space group. Rb(1) is bonded to two equivalent Sr(1), two equivalent Mg(2), four equivalent Mg(1), and four equivalent Mg(3) atoms to form RbSr2Mg10 cuboctahedra that share corners with six equivalent Rb(1)Sr2Mg10 cuboctahedra, edges with four equivalent Sr(1)Rb2Mg10 cuboctahedra, faces with two equivalent Rb(1)Sr2Mg10 cuboctahedra, and faces with two equivalent Sr(1)Rb2Mg10 cuboctahedra. Sr(1) is bonded to two equivalent Rb(1), two equivalent Mg(4), four equivalent Mg(1), and four equivalent Mg(3) atoms to form SrRb2Mg10 cuboctahedra that share corners with six equivalent Sr(1)Rb2Mg10 cuboctahedra, edges with four equivalent Rb(1)Sr2Mg10 cuboctahedra, faces with two equivalent Rb(1)Sr2Mg10 cuboctahedra, and faces with two equivalent Sr(1)Rb2Mg10 cuboctahedra. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 4-coordinate geometry to two equivalent Rb(1) and two equivalent Sr(1) atoms. In the second Mg site, Mg(2) is bonded in a 2-coordinate geometry to two equivalent Rb(1) atoms. In the third Mg site, Mg(3) is bonded in a 3-coordinate geometry to two equivalent Rb(1) and two equivalent Sr(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 2-coordinate geometry to two equivalent Sr(1) atoms. is represented by the CIF card [CIF]
data_RbSrMg6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.563
_cell_length_b   7.185
_cell_length_c   7.188
_cell_angle_alpha   119.989
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   248.828
_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
  Mg  Mg0  1  1.000  0.323  0.165  1.0
  Mg  Mg1  1  1.000  0.842  0.165  1.0
  Mg  Mg2  1  1.000  0.333  0.665  1.0
  Mg  Mg3  1  0.500  0.189  0.837  1.0
  Mg  Mg4  1  0.500  0.648  0.837  1.0
  Mg  Mg5  1  0.500  0.166  0.331  1.0
  Rb  Rb6  1  1.000  0.841  0.683  1.0
  Sr  Sr7  1  0.500  0.659  0.318  1.0
[/CIF]
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The material described by RbSrMg6 crystallizes in the orthorhombic Amm2 space group. Rb(1) is bonded to two equivalent Sr(1), two equivalent Mg(2), four equivalent Mg(1), and four equivalent Mg(3) atoms to form RbSr2Mg10 cuboctahedra that share corners with six equivalent Rb(1)Sr2Mg10 cuboctahedra, edges with four equivalent Sr(1)Rb2Mg10 cuboctahedra, faces with two equivalent Rb(1)Sr2Mg10 cuboctahedra, and faces with two equivalent Sr(1)Rb2Mg10 cuboctahedra. Sr(1) is bonded to two equivalent Rb(1), two equivalent Mg(4), four equivalent Mg(1), and four equivalent Mg(3) atoms to form SrRb2Mg10 cuboctahedra that share corners with six equivalent Sr(1)Rb2Mg10 cuboctahedra, edges with four equivalent Rb(1)Sr2Mg10 cuboctahedra, faces with two equivalent Rb(1)Sr2Mg10 cuboctahedra, and faces with two equivalent Sr(1)Rb2Mg10 cuboctahedra. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 4-coordinate geometry to two equivalent Rb(1) and two equivalent Sr(1) atoms. In the second Mg site, Mg(2) is bonded in a 2-coordinate geometry to two equivalent Rb(1) atoms. In the third Mg site, Mg(3) is bonded in a 3-coordinate geometry to two equivalent Rb(1) and two equivalent Sr(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 2-coordinate geometry to two equivalent Sr(1) atoms. is represented by the CIF card [CIF]
data_RbSrMg6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.563
_cell_length_b   7.185
_cell_length_c   7.188
_cell_angle_alpha   119.989
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   248.828
_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
  Mg  Mg0  1  1.000  0.323  0.165  1.0
  Mg  Mg1  1  1.000  0.842  0.165  1.0
  Mg  Mg2  1  1.000  0.333  0.665  1.0
  Mg  Mg3  1  0.500  0.189  0.837  1.0
  Mg  Mg4  1  0.500  0.648  0.837  1.0
  Mg  Mg5  1  0.500  0.166  0.331  1.0
  Rb  Rb6  1  1.000  0.841  0.683  1.0
  Sr  Sr7  1  0.500  0.659  0.318  1.0
[/CIF]
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