The material described by Na4Sn3F10 crystallizes in the monoclinic C2/c space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded to one F(1), one F(5), two equivalent F(2), and two equivalent F(4) atoms to form a mixture of distorted edge and corner-sharing NaF6 octahedra. The corner-sharing octahedral tilt angles are 64°. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to two equivalent F(1), two equivalent F(3), and two equivalent F(5) atoms. In the third Na site, Na(3) is bonded to two equivalent F(5) and four equivalent F(3) atoms to form a mixture of edge and corner-sharing NaF6 octahedra. The corner-sharing octahedral tilt angles are 64°. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted rectangular see-saw-like geometry to one F(2), one F(3), one F(4), and one F(5) atom. In the second Sn site, Sn(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent F(1) and two equivalent F(4) atoms. There are five inequivalent F sites. In the first F site, F(2) is bonded in a 3-coordinate geometry to two equivalent Na(1) and one Sn(1) atom. In the second F site, F(3) is bonded in a distorted rectangular see-saw-like geometry to one Na(2), two equivalent Na(3), and one Sn(1) atom. In the third F site, F(4) is bonded to two equivalent Na(1), one Sn(1), and one Sn(2) atom to form distorted FNa2Sn2 tetrahedra that share  a cornercorner with one F(4)Na2Sn2 tetrahedra,  a cornercorner with one F(5)Na3Sn tetrahedra,  an edgeedge with one F(4)Na2Sn2 tetrahedra, and  an edgeedge with one F(5)Na3Sn tetrahedra. In the fourth F site, F(5) is bonded to one Na(1), one Na(2), one Na(3), and one Sn(1) atom to form FNa3Sn tetrahedra that share  a cornercorner with one F(4)Na2Sn2 tetrahedra, corners with two equivalent F(5)Na3Sn tetrahedra, and  an edgeedge with one F(4)Na2Sn2 tetrahedra. In the fifth F site, F(1) is bonded in a distorted trigonal non-coplanar geometry to one Na(1), one Na(2), and one Sn(2) atom. is represented by the CIF card [CIF]
data_Na4Sn3F10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.763
_cell_length_b   10.763
_cell_length_c   5.382
_cell_angle_alpha   89.139
_cell_angle_beta   89.139
_cell_angle_gamma   112.408
_symmetry_Int_Tables_number   1
_cell_volume   576.206
_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  0.557  0.099  0.750  1.0
  Na  Na1  1  0.901  0.443  0.750  1.0
  Na  Na2  1  0.443  0.901  0.250  1.0
  Na  Na3  1  0.099  0.557  0.250  1.0
  Na  Na4  1  0.656  0.344  0.250  1.0
  Na  Na5  1  0.344  0.656  0.750  1.0
  Na  Na6  1  0.548  0.452  0.750  1.0
  Na  Na7  1  0.452  0.548  0.250  1.0
  Sn  Sn8  1  0.669  0.829  0.665  1.0
  Sn  Sn9  1  0.171  0.331  0.835  1.0
  Sn  Sn10  1  0.331  0.171  0.335  1.0
  Sn  Sn11  1  0.829  0.669  0.165  1.0
  Sn  Sn12  1  0.845  0.155  0.250  1.0
  Sn  Sn13  1  0.155  0.845  0.750  1.0
  F  F14  1  0.204  0.723  0.514  1.0
  F  F15  1  0.277  0.796  0.986  1.0
  F  F16  1  0.796  0.277  0.486  1.0
  F  F17  1  0.723  0.204  0.014  1.0
  F  F18  1  0.097  0.437  0.605  1.0
  F  F19  1  0.563  0.903  0.895  1.0
  F  F20  1  0.903  0.563  0.395  1.0
  F  F21  1  0.437  0.097  0.105  1.0
  F  F22  1  0.348  0.444  0.612  1.0
  F  F23  1  0.556  0.652  0.888  1.0
  F  F24  1  0.652  0.556  0.388  1.0
  F  F25  1  0.444  0.348  0.112  1.0
  F  F26  1  0.011  0.651  0.936  1.0
  F  F27  1  0.349  0.989  0.564  1.0
  F  F28  1  0.501  0.256  0.550  1.0
  F  F29  1  0.744  0.499  0.950  1.0
  F  F30  1  0.499  0.744  0.450  1.0
  F  F31  1  0.256  0.501  0.050  1.0
  F  F32  1  0.651  0.011  0.436  1.0
  F  F33  1  0.989  0.349  0.064  1.0
[/CIF]
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The material described by Na4Sn3F10 crystallizes in the monoclinic C2/c space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded to one F(1), one F(5), two equivalent F(2), and two equivalent F(4) atoms to form a mixture of distorted edge and corner-sharing NaF6 octahedra. The corner-sharing octahedral tilt angles are 64°. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to two equivalent F(1), two equivalent F(3), and two equivalent F(5) atoms. In the third Na site, Na(3) is bonded to two equivalent F(5) and four equivalent F(3) atoms to form a mixture of edge and corner-sharing NaF6 octahedra. The corner-sharing octahedral tilt angles are 64°. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted rectangular see-saw-like geometry to one F(2), one F(3), one F(4), and one F(5) atom. In the second Sn site, Sn(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent F(1) and two equivalent F(4) atoms. There are five inequivalent F sites. In the first F site, F(2) is bonded in a 3-coordinate geometry to two equivalent Na(1) and one Sn(1) atom. In the second F site, F(3) is bonded in a distorted rectangular see-saw-like geometry to one Na(2), two equivalent Na(3), and one Sn(1) atom. In the third F site, F(4) is bonded to two equivalent Na(1), one Sn(1), and one Sn(2) atom to form distorted FNa2Sn2 tetrahedra that share  a cornercorner with one F(4)Na2Sn2 tetrahedra,  a cornercorner with one F(5)Na3Sn tetrahedra,  an edgeedge with one F(4)Na2Sn2 tetrahedra, and  an edgeedge with one F(5)Na3Sn tetrahedra. In the fourth F site, F(5) is bonded to one Na(1), one Na(2), one Na(3), and one Sn(1) atom to form FNa3Sn tetrahedra that share  a cornercorner with one F(4)Na2Sn2 tetrahedra, corners with two equivalent F(5)Na3Sn tetrahedra, and  an edgeedge with one F(4)Na2Sn2 tetrahedra. In the fifth F site, F(1) is bonded in a distorted trigonal non-coplanar geometry to one Na(1), one Na(2), and one Sn(2) atom. is represented by the CIF card [CIF]
data_Na4Sn3F10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.763
_cell_length_b   10.763
_cell_length_c   5.382
_cell_angle_alpha   89.139
_cell_angle_beta   89.139
_cell_angle_gamma   112.408
_symmetry_Int_Tables_number   1
_cell_volume   576.206
_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  0.557  0.099  0.750  1.0
  Na  Na1  1  0.901  0.443  0.750  1.0
  Na  Na2  1  0.443  0.901  0.250  1.0
  Na  Na3  1  0.099  0.557  0.250  1.0
  Na  Na4  1  0.656  0.344  0.250  1.0
  Na  Na5  1  0.344  0.656  0.750  1.0
  Na  Na6  1  0.548  0.452  0.750  1.0
  Na  Na7  1  0.452  0.548  0.250  1.0
  Sn  Sn8  1  0.669  0.829  0.665  1.0
  Sn  Sn9  1  0.171  0.331  0.835  1.0
  Sn  Sn10  1  0.331  0.171  0.335  1.0
  Sn  Sn11  1  0.829  0.669  0.165  1.0
  Sn  Sn12  1  0.845  0.155  0.250  1.0
  Sn  Sn13  1  0.155  0.845  0.750  1.0
  F  F14  1  0.204  0.723  0.514  1.0
  F  F15  1  0.277  0.796  0.986  1.0
  F  F16  1  0.796  0.277  0.486  1.0
  F  F17  1  0.723  0.204  0.014  1.0
  F  F18  1  0.097  0.437  0.605  1.0
  F  F19  1  0.563  0.903  0.895  1.0
  F  F20  1  0.903  0.563  0.395  1.0
  F  F21  1  0.437  0.097  0.105  1.0
  F  F22  1  0.348  0.444  0.612  1.0
  F  F23  1  0.556  0.652  0.888  1.0
  F  F24  1  0.652  0.556  0.388  1.0
  F  F25  1  0.444  0.348  0.112  1.0
  F  F26  1  0.011  0.651  0.936  1.0
  F  F27  1  0.349  0.989  0.564  1.0
  F  F28  1  0.501  0.256  0.550  1.0
  F  F29  1  0.744  0.499  0.950  1.0
  F  F30  1  0.499  0.744  0.450  1.0
  F  F31  1  0.256  0.501  0.050  1.0
  F  F32  1  0.651  0.011  0.436  1.0
  F  F33  1  0.989  0.349  0.064  1.0
[/CIF]
.