The compound described by Na4Mg(FeO3)2 is Aluminum carbonitride-derived structured and crystallizes in the triclinic P1 space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second Na site, Na(2) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(3), one O(5), and one O(6) atom. In the third Na site, Na(3) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(5), and one O(6) atom. In the fourth Na site, Na(4) is bonded to one O(2), one O(3), one O(5), and one O(6) atom to form distorted NaO4 trigonal pyramids that share corners with two equivalent Mg(1)O4 tetrahedra, corners with three equivalent Fe(2)O4 tetrahedra, and corners with three equivalent Fe(1)O5 trigonal bipyramids. Mg(1) is bonded to one O(1), one O(3), one O(4), and one O(5) atom to form MgO4 tetrahedra that share corners with two equivalent Fe(2)O4 tetrahedra,  a cornercorner with one Fe(1)O5 trigonal bipyramid, corners with two equivalent Na(4)O4 trigonal pyramids, and  an edgeedge with one Fe(1)O5 trigonal bipyramid. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(6) atom to form distorted FeO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O4 tetrahedra,  a cornercorner with one Fe(2)O4 tetrahedra, corners with three equivalent Na(4)O4 trigonal pyramids,  an edgeedge with one Mg(1)O4 tetrahedra, and  an edgeedge with one Fe(2)O4 tetrahedra. In the second Fe site, Fe(2) is bonded to one O(2), one O(4), one O(5), and one O(6) atom to form FeO4 tetrahedra that share corners with two equivalent Mg(1)O4 tetrahedra,  a cornercorner with one Fe(1)O5 trigonal bipyramid, corners with three equivalent Na(4)O4 trigonal pyramids, and  an edgeedge with one Fe(1)O5 trigonal bipyramid. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Na(1), one Na(3), one Mg(1), and one Fe(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to one Na(1), one Na(2), one Na(3), one Na(4), one Fe(1), and one Fe(2) atom. In the third O site, O(3) is bonded in a 6-coordinate geometry to one Na(1), one Na(2), one Na(3), one Na(4), one Mg(1), and one Fe(1) atom. In the fourth O site, O(4) is bonded to one Na(1), one Mg(1), one Fe(1), and one Fe(2) atom to form corner-sharing ONaMgFe2 tetrahedra. In the fifth O site, O(5) is bonded to one Na(2), one Na(3), one Na(4), one Mg(1), and one Fe(2) atom to form corner-sharing ONa3MgFe trigonal bipyramids. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Na(2), one Na(3), one Na(4), one Fe(1), and one Fe(2) atom. is represented by the CIF card [CIF]
data_Na4Mg(FeO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.067
_cell_length_b   6.381
_cell_length_c   6.177
_cell_angle_alpha   87.167
_cell_angle_beta   116.132
_cell_angle_gamma   64.858
_symmetry_Int_Tables_number   1
_cell_volume   185.938
_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
  Na  Na0  1  0.659  0.464  0.568  1.0
  Na  Na1  1  0.042  0.414  0.335  1.0
  Na  Na2  1  0.612  0.912  0.091  1.0
  Na  Na3  1  0.306  0.451  0.020  1.0
  Mg  Mg4  1  0.615  0.924  0.579  1.0
  Fe  Fe5  1  0.080  0.872  0.544  1.0
  Fe  Fe6  1  0.048  0.018  0.090  1.0
  O  O7  1  0.454  0.809  0.741  1.0
  O  O8  1  0.177  0.700  0.268  1.0
  O  O9  1  0.934  0.656  0.571  1.0
  O  O10  1  0.865  0.064  0.736  1.0
  O  O11  1  0.316  0.121  0.224  1.0
  O  O12  1  0.820  0.167  0.241  1.0
[/CIF]
.
The compound described by Na4Mg(FeO3)2 is Aluminum carbonitride-derived structured and crystallizes in the triclinic P1 space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second Na site, Na(2) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(3), one O(5), and one O(6) atom. In the third Na site, Na(3) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(5), and one O(6) atom. In the fourth Na site, Na(4) is bonded to one O(2), one O(3), one O(5), and one O(6) atom to form distorted NaO4 trigonal pyramids that share corners with two equivalent Mg(1)O4 tetrahedra, corners with three equivalent Fe(2)O4 tetrahedra, and corners with three equivalent Fe(1)O5 trigonal bipyramids. Mg(1) is bonded to one O(1), one O(3), one O(4), and one O(5) atom to form MgO4 tetrahedra that share corners with two equivalent Fe(2)O4 tetrahedra,  a cornercorner with one Fe(1)O5 trigonal bipyramid, corners with two equivalent Na(4)O4 trigonal pyramids, and  an edgeedge with one Fe(1)O5 trigonal bipyramid. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(6) atom to form distorted FeO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O4 tetrahedra,  a cornercorner with one Fe(2)O4 tetrahedra, corners with three equivalent Na(4)O4 trigonal pyramids,  an edgeedge with one Mg(1)O4 tetrahedra, and  an edgeedge with one Fe(2)O4 tetrahedra. In the second Fe site, Fe(2) is bonded to one O(2), one O(4), one O(5), and one O(6) atom to form FeO4 tetrahedra that share corners with two equivalent Mg(1)O4 tetrahedra,  a cornercorner with one Fe(1)O5 trigonal bipyramid, corners with three equivalent Na(4)O4 trigonal pyramids, and  an edgeedge with one Fe(1)O5 trigonal bipyramid. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Na(1), one Na(3), one Mg(1), and one Fe(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to one Na(1), one Na(2), one Na(3), one Na(4), one Fe(1), and one Fe(2) atom. In the third O site, O(3) is bonded in a 6-coordinate geometry to one Na(1), one Na(2), one Na(3), one Na(4), one Mg(1), and one Fe(1) atom. In the fourth O site, O(4) is bonded to one Na(1), one Mg(1), one Fe(1), and one Fe(2) atom to form corner-sharing ONaMgFe2 tetrahedra. In the fifth O site, O(5) is bonded to one Na(2), one Na(3), one Na(4), one Mg(1), and one Fe(2) atom to form corner-sharing ONa3MgFe trigonal bipyramids. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Na(2), one Na(3), one Na(4), one Fe(1), and one Fe(2) atom. is represented by the CIF card [CIF]
data_Na4Mg(FeO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.067
_cell_length_b   6.381
_cell_length_c   6.177
_cell_angle_alpha   87.167
_cell_angle_beta   116.132
_cell_angle_gamma   64.858
_symmetry_Int_Tables_number   1
_cell_volume   185.938
_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
  Na  Na0  1  0.659  0.464  0.568  1.0
  Na  Na1  1  0.042  0.414  0.335  1.0
  Na  Na2  1  0.612  0.912  0.091  1.0
  Na  Na3  1  0.306  0.451  0.020  1.0
  Mg  Mg4  1  0.615  0.924  0.579  1.0
  Fe  Fe5  1  0.080  0.872  0.544  1.0
  Fe  Fe6  1  0.048  0.018  0.090  1.0
  O  O7  1  0.454  0.809  0.741  1.0
  O  O8  1  0.177  0.700  0.268  1.0
  O  O9  1  0.934  0.656  0.571  1.0
  O  O10  1  0.865  0.064  0.736  1.0
  O  O11  1  0.316  0.121  0.224  1.0
  O  O12  1  0.820  0.167  0.241  1.0
[/CIF]
.