The material described by Na4Li3(FeO4)2 crystallizes in the monoclinic Pc space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form distorted NaO6 octahedra that share  a cornercorner with one Fe(1)O4 tetrahedra,  a cornercorner with one Fe(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 trigonal pyramid, edges with two equivalent Na(2)O6 octahedra,  an edgeedge with one Li(2)O4 tetrahedra,  an edgeedge with one Fe(1)O4 tetrahedra,  an edgeedge with one Fe(2)O4 tetrahedra, and  an edgeedge with one Li(3)O4 trigonal pyramid. In the second Na site, Na(2) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(8) atom to form distorted NaO6 octahedra that share  a cornercorner with one Fe(1)O4 tetrahedra,  a cornercorner with one Fe(2)O4 tetrahedra, corners with four equivalent Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 trigonal pyramid, edges with two equivalent Na(1)O6 octahedra,  an edgeedge with one Fe(1)O4 tetrahedra,  an edgeedge with one Fe(2)O4 tetrahedra, and  an edgeedge with one Li(3)O4 trigonal pyramid. In the third Na site, Na(3) is bonded in a 5-coordinate geometry to one O(6), two equivalent O(7), and two equivalent O(8) atoms. In the fourth Na site, Na(4) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(5), and two equivalent O(1) atoms. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded in a trigonal planar geometry to one O(5), one O(7), and one O(8) atom. In the second Li site, Li(2) is bonded to one O(2), one O(3), one O(4), and one O(8) atom to form LiO4 tetrahedra that share corners with four equivalent Na(2)O6 octahedra, corners with two equivalent Fe(1)O4 tetrahedra,  an edgeedge with one Na(1)O6 octahedra,  an edgeedge with one Fe(2)O4 tetrahedra, and  an edgeedge with one Li(3)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 16-43°. In the third Li site, Li(3) is bonded to one O(1), one O(2), one O(4), and one O(6) atom to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Na(1)O6 octahedra,  a cornercorner with one Na(2)O6 octahedra, corners with two equivalent Fe(1)O4 tetrahedra,  an edgeedge with one Na(1)O6 octahedra,  an edgeedge with one Na(2)O6 octahedra,  an edgeedge with one Li(2)O4 tetrahedra, and  an edgeedge with one Fe(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 34-52°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(2), one O(4), and one O(6) atom to form FeO4 tetrahedra that share  a cornercorner with one Na(1)O6 octahedra,  a cornercorner with one Na(2)O6 octahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Li(3)O4 trigonal pyramids,  an edgeedge with one Na(1)O6 octahedra,  an edgeedge with one Na(2)O6 octahedra, and  an edgeedge with one Li(3)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 34-49°. In the second Fe site, Fe(2) is bonded to one O(3), one O(5), one O(7), and one O(8) atom to form distorted FeO4 tetrahedra that share  a cornercorner with one Na(1)O6 octahedra,  a cornercorner with one Na(2)O6 octahedra,  an edgeedge with one Na(1)O6 octahedra,  an edgeedge with one Na(2)O6 octahedra, and  an edgeedge with one Li(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-58°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Na(1), two equivalent Na(4), one Li(3), and one Fe(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Na(2), one Na(4), one Li(2), one Li(3), and one Fe(1) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Na(4), one Li(2), and one Fe(2) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Li(2), one Li(3), and one Fe(1) atom. In the fifth O site, O(5) is bonded to one Na(1), one Na(2), one Na(4), one Li(1), and one Fe(2) atom to form a mixture of distorted corner and edge-sharing ONa3LiFe trigonal bipyramids. The corner-sharing octahedral tilt angles are 55°. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Na(3), one Li(3), and one Fe(1) atom. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one Na(1), two equivalent Na(3), one Li(1), and one Fe(2) atom. In the eighth O site, O(8) is bonded to one Na(2), two equivalent Na(3), one Li(1), one Li(2), and one Fe(2) atom to form distorted ONa3Li2Fe octahedra that share corners with two equivalent O(8)Na3Li2Fe octahedra,  a cornercorner with one O(5)Na3LiFe trigonal bipyramid, and  an edgeedge with one O(5)Na3LiFe trigonal bipyramid. The corner-sharing octahedral tilt angles are 19°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na4Li3(FeO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.074
_cell_length_b   6.445
_cell_length_c   10.304
_cell_angle_alpha   53.627
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   431.725
_cell_formula_units_Z   2
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  0.744  0.252  0.007  1.0
  Na  Na1  1  0.745  0.731  0.009  1.0
  Na  Na2  1  0.458  0.747  0.237  1.0
  Na  Na3  1  0.030  0.283  0.250  1.0
  Na  Na4  1  0.256  0.252  0.507  1.0
  Na  Na5  1  0.255  0.731  0.509  1.0
  Na  Na6  1  0.542  0.747  0.737  1.0
  Na  Na7  1  0.970  0.283  0.750  1.0
  Li  Li8  1  0.399  0.426  0.075  1.0
  Li  Li9  1  0.766  0.899  0.355  1.0
  Li  Li10  1  0.953  0.562  0.415  1.0
  Li  Li11  1  0.601  0.426  0.575  1.0
  Li  Li12  1  0.234  0.899  0.855  1.0
  Li  Li13  1  0.047  0.562  0.915  1.0
  Fe  Fe14  1  0.037  0.876  0.127  1.0
  Fe  Fe15  1  0.531  0.141  0.364  1.0
  Fe  Fe16  1  0.963  0.876  0.627  1.0
  Fe  Fe17  1  0.469  0.141  0.864  1.0
  O  O18  1  0.035  0.207  0.033  1.0
  O  O19  1  0.053  0.745  0.015  1.0
  O  O20  1  0.706  0.263  0.228  1.0
  O  O21  1  0.831  0.800  0.213  1.0
  O  O22  1  0.317  0.197  0.301  1.0
  O  O23  1  0.169  0.685  0.294  1.0
  O  O24  1  0.537  0.289  0.464  1.0
  O  O25  1  0.549  0.793  0.460  1.0
  O  O26  1  0.947  0.745  0.515  1.0
  O  O27  1  0.965  0.207  0.533  1.0
  O  O28  1  0.294  0.263  0.728  1.0
  O  O29  1  0.169  0.800  0.713  1.0
  O  O30  1  0.683  0.197  0.801  1.0
  O  O31  1  0.831  0.685  0.794  1.0
  O  O32  1  0.463  0.289  0.964  1.0
  O  O33  1  0.451  0.793  0.960  1.0
[/CIF]
.
The material described by Na4Li3(FeO4)2 crystallizes in the monoclinic Pc space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form distorted NaO6 octahedra that share  a cornercorner with one Fe(1)O4 tetrahedra,  a cornercorner with one Fe(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 trigonal pyramid, edges with two equivalent Na(2)O6 octahedra,  an edgeedge with one Li(2)O4 tetrahedra,  an edgeedge with one Fe(1)O4 tetrahedra,  an edgeedge with one Fe(2)O4 tetrahedra, and  an edgeedge with one Li(3)O4 trigonal pyramid. In the second Na site, Na(2) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(8) atom to form distorted NaO6 octahedra that share  a cornercorner with one Fe(1)O4 tetrahedra,  a cornercorner with one Fe(2)O4 tetrahedra, corners with four equivalent Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 trigonal pyramid, edges with two equivalent Na(1)O6 octahedra,  an edgeedge with one Fe(1)O4 tetrahedra,  an edgeedge with one Fe(2)O4 tetrahedra, and  an edgeedge with one Li(3)O4 trigonal pyramid. In the third Na site, Na(3) is bonded in a 5-coordinate geometry to one O(6), two equivalent O(7), and two equivalent O(8) atoms. In the fourth Na site, Na(4) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(5), and two equivalent O(1) atoms. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded in a trigonal planar geometry to one O(5), one O(7), and one O(8) atom. In the second Li site, Li(2) is bonded to one O(2), one O(3), one O(4), and one O(8) atom to form LiO4 tetrahedra that share corners with four equivalent Na(2)O6 octahedra, corners with two equivalent Fe(1)O4 tetrahedra,  an edgeedge with one Na(1)O6 octahedra,  an edgeedge with one Fe(2)O4 tetrahedra, and  an edgeedge with one Li(3)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 16-43°. In the third Li site, Li(3) is bonded to one O(1), one O(2), one O(4), and one O(6) atom to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Na(1)O6 octahedra,  a cornercorner with one Na(2)O6 octahedra, corners with two equivalent Fe(1)O4 tetrahedra,  an edgeedge with one Na(1)O6 octahedra,  an edgeedge with one Na(2)O6 octahedra,  an edgeedge with one Li(2)O4 tetrahedra, and  an edgeedge with one Fe(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 34-52°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(2), one O(4), and one O(6) atom to form FeO4 tetrahedra that share  a cornercorner with one Na(1)O6 octahedra,  a cornercorner with one Na(2)O6 octahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Li(3)O4 trigonal pyramids,  an edgeedge with one Na(1)O6 octahedra,  an edgeedge with one Na(2)O6 octahedra, and  an edgeedge with one Li(3)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 34-49°. In the second Fe site, Fe(2) is bonded to one O(3), one O(5), one O(7), and one O(8) atom to form distorted FeO4 tetrahedra that share  a cornercorner with one Na(1)O6 octahedra,  a cornercorner with one Na(2)O6 octahedra,  an edgeedge with one Na(1)O6 octahedra,  an edgeedge with one Na(2)O6 octahedra, and  an edgeedge with one Li(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-58°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Na(1), two equivalent Na(4), one Li(3), and one Fe(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Na(2), one Na(4), one Li(2), one Li(3), and one Fe(1) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Na(4), one Li(2), and one Fe(2) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Li(2), one Li(3), and one Fe(1) atom. In the fifth O site, O(5) is bonded to one Na(1), one Na(2), one Na(4), one Li(1), and one Fe(2) atom to form a mixture of distorted corner and edge-sharing ONa3LiFe trigonal bipyramids. The corner-sharing octahedral tilt angles are 55°. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Na(3), one Li(3), and one Fe(1) atom. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one Na(1), two equivalent Na(3), one Li(1), and one Fe(2) atom. In the eighth O site, O(8) is bonded to one Na(2), two equivalent Na(3), one Li(1), one Li(2), and one Fe(2) atom to form distorted ONa3Li2Fe octahedra that share corners with two equivalent O(8)Na3Li2Fe octahedra,  a cornercorner with one O(5)Na3LiFe trigonal bipyramid, and  an edgeedge with one O(5)Na3LiFe trigonal bipyramid. The corner-sharing octahedral tilt angles are 19°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na4Li3(FeO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.074
_cell_length_b   6.445
_cell_length_c   10.304
_cell_angle_alpha   53.627
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   431.725
_cell_formula_units_Z   2
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  0.744  0.252  0.007  1.0
  Na  Na1  1  0.745  0.731  0.009  1.0
  Na  Na2  1  0.458  0.747  0.237  1.0
  Na  Na3  1  0.030  0.283  0.250  1.0
  Na  Na4  1  0.256  0.252  0.507  1.0
  Na  Na5  1  0.255  0.731  0.509  1.0
  Na  Na6  1  0.542  0.747  0.737  1.0
  Na  Na7  1  0.970  0.283  0.750  1.0
  Li  Li8  1  0.399  0.426  0.075  1.0
  Li  Li9  1  0.766  0.899  0.355  1.0
  Li  Li10  1  0.953  0.562  0.415  1.0
  Li  Li11  1  0.601  0.426  0.575  1.0
  Li  Li12  1  0.234  0.899  0.855  1.0
  Li  Li13  1  0.047  0.562  0.915  1.0
  Fe  Fe14  1  0.037  0.876  0.127  1.0
  Fe  Fe15  1  0.531  0.141  0.364  1.0
  Fe  Fe16  1  0.963  0.876  0.627  1.0
  Fe  Fe17  1  0.469  0.141  0.864  1.0
  O  O18  1  0.035  0.207  0.033  1.0
  O  O19  1  0.053  0.745  0.015  1.0
  O  O20  1  0.706  0.263  0.228  1.0
  O  O21  1  0.831  0.800  0.213  1.0
  O  O22  1  0.317  0.197  0.301  1.0
  O  O23  1  0.169  0.685  0.294  1.0
  O  O24  1  0.537  0.289  0.464  1.0
  O  O25  1  0.549  0.793  0.460  1.0
  O  O26  1  0.947  0.745  0.515  1.0
  O  O27  1  0.965  0.207  0.533  1.0
  O  O28  1  0.294  0.263  0.728  1.0
  O  O29  1  0.169  0.800  0.713  1.0
  O  O30  1  0.683  0.197  0.801  1.0
  O  O31  1  0.831  0.685  0.794  1.0
  O  O32  1  0.463  0.289  0.964  1.0
  O  O33  1  0.451  0.793  0.960  1.0
[/CIF]
.