The material structure described by RbMg6Fe crystallizes in the orthorhombic Amm2 space group. Rb(1) is bonded to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(2), and two equivalent Fe(1) atoms to form a mixture of corner and face-sharing RbMg10Fe2 cuboctahedra. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 3-coordinate geometry to two equivalent Rb(1), two equivalent Mg(3), two equivalent Mg(4), and two equivalent Fe(1) atoms. In the second Mg site, Mg(2) is bonded in a 4-coordinate geometry to two equivalent Rb(1), two equivalent Mg(3), two equivalent Mg(4), and two equivalent Fe(1) atoms. In the third Mg site, Mg(3) is bonded in a 12-coordinate geometry to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(2), and two equivalent Fe(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 12-coordinate geometry to two equivalent Rb(1), two equivalent Mg(3), four equivalent Mg(1), and four equivalent Mg(2) atoms. Fe(1) is bonded in a 12-coordinate geometry to two equivalent Rb(1), two equivalent Mg(3), four equivalent Mg(1), and four equivalent Mg(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbMg6Fe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.591
_cell_length_b   6.591
_cell_length_c   5.317
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.475
_symmetry_Int_Tables_number   1
_cell_volume   201.066
_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  0.334  0.666  0.500  1.0
  Mg  Mg1  1  0.325  0.165  0.500  1.0
  Mg  Mg2  1  0.835  0.675  0.500  1.0
  Mg  Mg3  1  0.138  0.310  0.000  1.0
  Mg  Mg4  1  0.690  0.862  0.000  1.0
  Mg  Mg5  1  0.672  0.328  0.000  1.0
  Mg  Mg6  1  0.153  0.847  0.000  1.0
  Fe  Fe7  1  0.854  0.146  0.500  1.0
[/CIF]
.
The material structure described by RbMg6Fe crystallizes in the orthorhombic Amm2 space group. Rb(1) is bonded to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(2), and two equivalent Fe(1) atoms to form a mixture of corner and face-sharing RbMg10Fe2 cuboctahedra. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 3-coordinate geometry to two equivalent Rb(1), two equivalent Mg(3), two equivalent Mg(4), and two equivalent Fe(1) atoms. In the second Mg site, Mg(2) is bonded in a 4-coordinate geometry to two equivalent Rb(1), two equivalent Mg(3), two equivalent Mg(4), and two equivalent Fe(1) atoms. In the third Mg site, Mg(3) is bonded in a 12-coordinate geometry to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(2), and two equivalent Fe(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 12-coordinate geometry to two equivalent Rb(1), two equivalent Mg(3), four equivalent Mg(1), and four equivalent Mg(2) atoms. Fe(1) is bonded in a 12-coordinate geometry to two equivalent Rb(1), two equivalent Mg(3), four equivalent Mg(1), and four equivalent Mg(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbMg6Fe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.591
_cell_length_b   6.591
_cell_length_c   5.317
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.475
_symmetry_Int_Tables_number   1
_cell_volume   201.066
_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  0.334  0.666  0.500  1.0
  Mg  Mg1  1  0.325  0.165  0.500  1.0
  Mg  Mg2  1  0.835  0.675  0.500  1.0
  Mg  Mg3  1  0.138  0.310  0.000  1.0
  Mg  Mg4  1  0.690  0.862  0.000  1.0
  Mg  Mg5  1  0.672  0.328  0.000  1.0
  Mg  Mg6  1  0.153  0.847  0.000  1.0
  Fe  Fe7  1  0.854  0.146  0.500  1.0
[/CIF]
.