The material structure described by Na7AlC4H2(O3F)4 crystallizes in the triclinic P-1 space group. There are five inequivalent Na sites. In the first Na site, Na(1) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent F(2) atoms to form NaO4F2 octahedra that share corners with two equivalent Na(5)O5F octahedra, edges with two equivalent Na(3)O2F4 octahedra, edges with two equivalent Na(2)O4F2 octahedra, and edges with two equivalent Al(1)O2F4 octahedra. The corner-sharing octahedral tilt angles are 74°. In the second Na site, Na(2) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent F(1) atoms to form NaO4F2 octahedra that share corners with two equivalent Na(4)O5F octahedra, edges with two equivalent Na(3)O2F4 octahedra, edges with two equivalent Na(1)O4F2 octahedra, and edges with two equivalent Al(1)O2F4 octahedra. The corner-sharing octahedral tilt angles are 73°. In the third Na site, Na(3) is bonded to two equivalent O(3), two equivalent F(1), and two equivalent F(2) atoms to form NaO2F4 octahedra that share corners with two equivalent Na(4)O5F octahedra, corners with two equivalent Na(5)O5F octahedra, edges with two equivalent Na(1)O4F2 octahedra, edges with two equivalent Na(2)O4F2 octahedra, and edges with two equivalent Al(1)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 70-77°. In the fourth Na site, Na(4) is bonded to one O(1), one O(2), one O(4), two equivalent O(6), and one F(1) atom to form NaO5F octahedra that share  a cornercorner with one Na(3)O2F4 octahedra,  a cornercorner with one Na(2)O4F2 octahedra,  a cornercorner with one Al(1)O2F4 octahedra,  an edgeedge with one Na(4)O5F octahedra, and edges with three equivalent Na(5)O5F octahedra. The corner-sharing octahedral tilt angles range from 45-77°. In the fifth Na site, Na(5) is bonded to one O(2), one O(4), one O(6), two equivalent O(1), and one F(2) atom to form distorted NaO5F octahedra that share  a cornercorner with one Na(3)O2F4 octahedra,  a cornercorner with one Na(1)O4F2 octahedra,  a cornercorner with one Al(1)O2F4 octahedra,  an edgeedge with one Na(5)O5F octahedra, and edges with three equivalent Na(4)O5F octahedra. The corner-sharing octahedral tilt angles range from 52-74°. Al(1) is bonded to two equivalent O(5), two equivalent F(1), and two equivalent F(2) atoms to form AlO2F4 octahedra that share corners with two equivalent Na(4)O5F octahedra, corners with two equivalent Na(5)O5F octahedra, edges with two equivalent Na(3)O2F4 octahedra, edges with two equivalent Na(1)O4F2 octahedra, and edges with two equivalent Na(2)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 45-52°. There are two inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. In the second C site, C(2) is bonded in a trigonal planar geometry to one O(4), one O(5), and one O(6) atom. H(1) is bonded in a distorted linear geometry to one O(2) and one O(4) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Na(4), two equivalent Na(5), and one C(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Na(4), one Na(5), one C(1), and one H(1) atom. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Na(1), one Na(2), one Na(3), and one C(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Na(4), one Na(5), one C(2), and one H(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Na(1), one Na(2), one Al(1), and one C(2) atom. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Na(5), two equivalent Na(4), and one C(2) atom. There are two inequivalent F sites. In the first F site, F(1) is bonded to one Na(2), one Na(3), one Na(4), and one Al(1) atom to form a mixture of distorted edge and corner-sharing FNa3Al tetrahedra. In the second F site, F(2) is bonded to one Na(1), one Na(3), one Na(5), and one Al(1) atom to form a mixture of distorted edge and corner-sharing FNa3Al tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na7AlH2C4(O3F)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.543
_cell_length_b   6.762
_cell_length_c   8.918
_cell_angle_alpha   80.391
_cell_angle_beta   82.660
_cell_angle_gamma   61.556
_symmetry_Int_Tables_number   1
_cell_volume   341.545
_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  0.000  0.000  0.000  1.0
  Na  Na1  1  0.000  0.500  0.000  1.0
  Na  Na2  1  0.500  0.000  0.000  1.0
  Na  Na3  1  0.340  0.385  0.642  1.0
  Na  Na4  1  0.660  0.615  0.358  1.0
  Na  Na5  1  0.657  0.119  0.355  1.0
  Na  Na6  1  0.343  0.881  0.645  1.0
  Al  Al7  1  0.500  0.500  0.000  1.0
  H  H8  1  0.997  0.228  0.490  1.0
  H  H9  1  0.003  0.772  0.510  1.0
  C  C10  1  0.176  0.111  0.299  1.0
  C  C11  1  0.824  0.889  0.701  1.0
  C  C12  1  0.815  0.387  0.715  1.0
  C  C13  1  0.185  0.613  0.285  1.0
  O  O14  1  0.358  0.993  0.374  1.0
  O  O15  1  0.642  0.007  0.626  1.0
  O  O16  1  0.969  0.229  0.379  1.0
  O  O17  1  0.031  0.771  0.621  1.0
  O  O18  1  0.165  0.131  0.156  1.0
  O  O19  1  0.835  0.869  0.844  1.0
  O  O20  1  0.024  0.256  0.662  1.0
  O  O21  1  0.976  0.744  0.338  1.0
  O  O22  1  0.783  0.392  0.864  1.0
  O  O23  1  0.217  0.608  0.136  1.0
  O  O24  1  0.647  0.505  0.626  1.0
  O  O25  1  0.353  0.495  0.374  1.0
  F  F26  1  0.359  0.394  0.892  1.0
  F  F27  1  0.641  0.606  0.108  1.0
  F  F28  1  0.635  0.214  0.106  1.0
  F  F29  1  0.365  0.786  0.894  1.0
[/CIF]
.
The material structure described by Na7AlC4H2(O3F)4 crystallizes in the triclinic P-1 space group. There are five inequivalent Na sites. In the first Na site, Na(1) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent F(2) atoms to form NaO4F2 octahedra that share corners with two equivalent Na(5)O5F octahedra, edges with two equivalent Na(3)O2F4 octahedra, edges with two equivalent Na(2)O4F2 octahedra, and edges with two equivalent Al(1)O2F4 octahedra. The corner-sharing octahedral tilt angles are 74°. In the second Na site, Na(2) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent F(1) atoms to form NaO4F2 octahedra that share corners with two equivalent Na(4)O5F octahedra, edges with two equivalent Na(3)O2F4 octahedra, edges with two equivalent Na(1)O4F2 octahedra, and edges with two equivalent Al(1)O2F4 octahedra. The corner-sharing octahedral tilt angles are 73°. In the third Na site, Na(3) is bonded to two equivalent O(3), two equivalent F(1), and two equivalent F(2) atoms to form NaO2F4 octahedra that share corners with two equivalent Na(4)O5F octahedra, corners with two equivalent Na(5)O5F octahedra, edges with two equivalent Na(1)O4F2 octahedra, edges with two equivalent Na(2)O4F2 octahedra, and edges with two equivalent Al(1)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 70-77°. In the fourth Na site, Na(4) is bonded to one O(1), one O(2), one O(4), two equivalent O(6), and one F(1) atom to form NaO5F octahedra that share  a cornercorner with one Na(3)O2F4 octahedra,  a cornercorner with one Na(2)O4F2 octahedra,  a cornercorner with one Al(1)O2F4 octahedra,  an edgeedge with one Na(4)O5F octahedra, and edges with three equivalent Na(5)O5F octahedra. The corner-sharing octahedral tilt angles range from 45-77°. In the fifth Na site, Na(5) is bonded to one O(2), one O(4), one O(6), two equivalent O(1), and one F(2) atom to form distorted NaO5F octahedra that share  a cornercorner with one Na(3)O2F4 octahedra,  a cornercorner with one Na(1)O4F2 octahedra,  a cornercorner with one Al(1)O2F4 octahedra,  an edgeedge with one Na(5)O5F octahedra, and edges with three equivalent Na(4)O5F octahedra. The corner-sharing octahedral tilt angles range from 52-74°. Al(1) is bonded to two equivalent O(5), two equivalent F(1), and two equivalent F(2) atoms to form AlO2F4 octahedra that share corners with two equivalent Na(4)O5F octahedra, corners with two equivalent Na(5)O5F octahedra, edges with two equivalent Na(3)O2F4 octahedra, edges with two equivalent Na(1)O4F2 octahedra, and edges with two equivalent Na(2)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 45-52°. There are two inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. In the second C site, C(2) is bonded in a trigonal planar geometry to one O(4), one O(5), and one O(6) atom. H(1) is bonded in a distorted linear geometry to one O(2) and one O(4) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Na(4), two equivalent Na(5), and one C(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Na(4), one Na(5), one C(1), and one H(1) atom. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Na(1), one Na(2), one Na(3), and one C(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Na(4), one Na(5), one C(2), and one H(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Na(1), one Na(2), one Al(1), and one C(2) atom. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Na(5), two equivalent Na(4), and one C(2) atom. There are two inequivalent F sites. In the first F site, F(1) is bonded to one Na(2), one Na(3), one Na(4), and one Al(1) atom to form a mixture of distorted edge and corner-sharing FNa3Al tetrahedra. In the second F site, F(2) is bonded to one Na(1), one Na(3), one Na(5), and one Al(1) atom to form a mixture of distorted edge and corner-sharing FNa3Al tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na7AlH2C4(O3F)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.543
_cell_length_b   6.762
_cell_length_c   8.918
_cell_angle_alpha   80.391
_cell_angle_beta   82.660
_cell_angle_gamma   61.556
_symmetry_Int_Tables_number   1
_cell_volume   341.545
_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  0.000  0.000  0.000  1.0
  Na  Na1  1  0.000  0.500  0.000  1.0
  Na  Na2  1  0.500  0.000  0.000  1.0
  Na  Na3  1  0.340  0.385  0.642  1.0
  Na  Na4  1  0.660  0.615  0.358  1.0
  Na  Na5  1  0.657  0.119  0.355  1.0
  Na  Na6  1  0.343  0.881  0.645  1.0
  Al  Al7  1  0.500  0.500  0.000  1.0
  H  H8  1  0.997  0.228  0.490  1.0
  H  H9  1  0.003  0.772  0.510  1.0
  C  C10  1  0.176  0.111  0.299  1.0
  C  C11  1  0.824  0.889  0.701  1.0
  C  C12  1  0.815  0.387  0.715  1.0
  C  C13  1  0.185  0.613  0.285  1.0
  O  O14  1  0.358  0.993  0.374  1.0
  O  O15  1  0.642  0.007  0.626  1.0
  O  O16  1  0.969  0.229  0.379  1.0
  O  O17  1  0.031  0.771  0.621  1.0
  O  O18  1  0.165  0.131  0.156  1.0
  O  O19  1  0.835  0.869  0.844  1.0
  O  O20  1  0.024  0.256  0.662  1.0
  O  O21  1  0.976  0.744  0.338  1.0
  O  O22  1  0.783  0.392  0.864  1.0
  O  O23  1  0.217  0.608  0.136  1.0
  O  O24  1  0.647  0.505  0.626  1.0
  O  O25  1  0.353  0.495  0.374  1.0
  F  F26  1  0.359  0.394  0.892  1.0
  F  F27  1  0.641  0.606  0.108  1.0
  F  F28  1  0.635  0.214  0.106  1.0
  F  F29  1  0.365  0.786  0.894  1.0
[/CIF]
.