The structure described by RbMg6Zr crystallizes in the orthorhombic Amm2 space group. Rb(1) is bonded to two equivalent Mg(3), two equivalent Mg(4), four equivalent Mg(1), and four equivalent Mg(2) atoms to form RbMg12 cuboctahedra that share corners with four equivalent Rb(1)Mg12 cuboctahedra, corners with eight equivalent Zr(1)Mg12 cuboctahedra, faces with two equivalent Rb(1)Mg12 cuboctahedra, and faces with four equivalent Zr(1)Mg12 cuboctahedra. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Rb(1), two equivalent Mg(3), two equivalent Mg(4), four equivalent Mg(2), and two equivalent Zr(1) atoms. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to two equivalent Rb(1), one Mg(3), one Mg(4), four equivalent Mg(1), and two equivalent Zr(1) atoms. In the third Mg site, Mg(3) is bonded in a distorted q6 geometry to two equivalent Rb(1), two equivalent Mg(2), four equivalent Mg(1), and two equivalent Zr(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 10-coordinate geometry to two equivalent Rb(1), two equivalent Mg(2), four equivalent Mg(1), and two equivalent Zr(1) atoms. Zr(1) is bonded to two equivalent Mg(3), two equivalent Mg(4), four equivalent Mg(1), and four equivalent Mg(2) atoms to form ZrMg12 cuboctahedra that share corners with four equivalent Zr(1)Mg12 cuboctahedra, corners with eight equivalent Rb(1)Mg12 cuboctahedra, faces with two equivalent Zr(1)Mg12 cuboctahedra, and faces with four equivalent Rb(1)Mg12 cuboctahedra. is represented by the CIF card [CIF]
data_RbMg6Zr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.833
_cell_length_b   6.833
_cell_length_c   4.720
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.025
_symmetry_Int_Tables_number   1
_cell_volume   220.383
_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
  Rb  Rb0  1  0.366  0.634  0.500  1.0
  Mg  Mg1  1  0.383  0.135  0.500  1.0
  Mg  Mg2  1  0.865  0.617  0.500  1.0
  Mg  Mg3  1  0.098  0.339  0.000  1.0
  Mg  Mg4  1  0.661  0.902  0.000  1.0
  Mg  Mg5  1  0.657  0.343  0.000  1.0
  Mg  Mg6  1  0.092  0.908  0.000  1.0
  Zr  Zr7  1  0.878  0.122  0.500  1.0
[/CIF]
.
The structure described by RbMg6Zr crystallizes in the orthorhombic Amm2 space group. Rb(1) is bonded to two equivalent Mg(3), two equivalent Mg(4), four equivalent Mg(1), and four equivalent Mg(2) atoms to form RbMg12 cuboctahedra that share corners with four equivalent Rb(1)Mg12 cuboctahedra, corners with eight equivalent Zr(1)Mg12 cuboctahedra, faces with two equivalent Rb(1)Mg12 cuboctahedra, and faces with four equivalent Zr(1)Mg12 cuboctahedra. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Rb(1), two equivalent Mg(3), two equivalent Mg(4), four equivalent Mg(2), and two equivalent Zr(1) atoms. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to two equivalent Rb(1), one Mg(3), one Mg(4), four equivalent Mg(1), and two equivalent Zr(1) atoms. In the third Mg site, Mg(3) is bonded in a distorted q6 geometry to two equivalent Rb(1), two equivalent Mg(2), four equivalent Mg(1), and two equivalent Zr(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 10-coordinate geometry to two equivalent Rb(1), two equivalent Mg(2), four equivalent Mg(1), and two equivalent Zr(1) atoms. Zr(1) is bonded to two equivalent Mg(3), two equivalent Mg(4), four equivalent Mg(1), and four equivalent Mg(2) atoms to form ZrMg12 cuboctahedra that share corners with four equivalent Zr(1)Mg12 cuboctahedra, corners with eight equivalent Rb(1)Mg12 cuboctahedra, faces with two equivalent Zr(1)Mg12 cuboctahedra, and faces with four equivalent Rb(1)Mg12 cuboctahedra. is represented by the CIF card [CIF]
data_RbMg6Zr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.833
_cell_length_b   6.833
_cell_length_c   4.720
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.025
_symmetry_Int_Tables_number   1
_cell_volume   220.383
_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
  Rb  Rb0  1  0.366  0.634  0.500  1.0
  Mg  Mg1  1  0.383  0.135  0.500  1.0
  Mg  Mg2  1  0.865  0.617  0.500  1.0
  Mg  Mg3  1  0.098  0.339  0.000  1.0
  Mg  Mg4  1  0.661  0.902  0.000  1.0
  Mg  Mg5  1  0.657  0.343  0.000  1.0
  Mg  Mg6  1  0.092  0.908  0.000  1.0
  Zr  Zr7  1  0.878  0.122  0.500  1.0
[/CIF]
.