The compound described by NaSb5O8 crystallizes in the triclinic P-1 space group. Na(1) is bonded in a 7-coordinate geometry to one O(1), one O(3), one O(4), one O(7), one O(8), and two equivalent O(5) atoms. There are five inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 5-coordinate geometry to one O(4), one O(5), one O(6), one O(7), and one O(8) atom. In the second Sb site, Sb(2) is bonded in a distorted rectangular see-saw-like geometry to one O(3), one O(4), and two equivalent O(8) atoms. In the third Sb site, Sb(3) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(5), and two equivalent O(6) atoms. In the fourth Sb site, Sb(4) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(4), one O(6), and one O(7) atom. In the fifth Sb site, Sb(5) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(3), and two equivalent O(2) atoms. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Na(1), one Sb(4), and one Sb(5) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Sb(3) and two equivalent Sb(5) atoms. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Na(1), one Sb(2), and one Sb(5) atom. In the fourth O site, O(4) is bonded to one Na(1), one Sb(1), one Sb(2), and one Sb(4) atom to form a mixture of distorted edge and corner-sharing ONaSb3 trigonal pyramids. In the fifth O site, O(5) is bonded to two equivalent Na(1), one Sb(1), and one Sb(3) atom to form distorted ONa2Sb2 tetrahedra that share  a cornercorner with one O(4)NaSb3 trigonal pyramid,  an edgeedge with one O(5)Na2Sb2 tetrahedra, and  an edgeedge with one O(4)NaSb3 trigonal pyramid. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Sb(1), one Sb(4), and two equivalent Sb(3) atoms. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Na(1), one Sb(1), and one Sb(4) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Na(1), one Sb(1), and two equivalent Sb(2) atoms. is represented by the CIF card [CIF]
data_NaSb5O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.170
_cell_length_b   7.366
_cell_length_c   9.696
_cell_angle_alpha   106.193
_cell_angle_beta   106.355
_cell_angle_gamma   85.324
_symmetry_Int_Tables_number   1
_cell_volume   471.886
_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  0.251  0.566  0.966  1.0
  Na  Na1  1  0.749  0.434  0.034  1.0
  Sb  Sb2  1  0.542  0.825  0.276  1.0
  Sb  Sb3  1  0.458  0.175  0.724  1.0
  Sb  Sb4  1  0.747  0.939  0.027  1.0
  Sb  Sb5  1  0.253  0.061  0.973  1.0
  Sb  Sb6  1  0.536  0.397  0.331  1.0
  Sb  Sb7  1  0.464  0.603  0.669  1.0
  Sb  Sb8  1  0.107  0.763  0.335  1.0
  Sb  Sb9  1  0.893  0.237  0.665  1.0
  Sb  Sb10  1  0.969  0.694  0.659  1.0
  Sb  Sb11  1  0.031  0.306  0.341  1.0
  O  O12  1  0.066  0.488  0.234  1.0
  O  O13  1  0.934  0.512  0.766  1.0
  O  O14  1  0.824  0.457  0.426  1.0
  O  O15  1  0.176  0.543  0.574  1.0
  O  O16  1  0.813  0.192  0.163  1.0
  O  O17  1  0.187  0.808  0.837  1.0
  O  O18  1  0.850  0.806  0.196  1.0
  O  O19  1  0.150  0.194  0.804  1.0
  O  O20  1  0.542  0.553  0.183  1.0
  O  O21  1  0.458  0.447  0.817  1.0
  O  O22  1  0.442  0.641  0.440  1.0
  O  O23  1  0.558  0.359  0.560  1.0
  O  O24  1  0.755  0.183  0.798  1.0
  O  O25  1  0.245  0.817  0.202  1.0
  O  O26  1  0.497  0.106  0.920  1.0
  O  O27  1  0.503  0.894  0.080  1.0
[/CIF]
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The compound described by NaSb5O8 crystallizes in the triclinic P-1 space group. Na(1) is bonded in a 7-coordinate geometry to one O(1), one O(3), one O(4), one O(7), one O(8), and two equivalent O(5) atoms. There are five inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 5-coordinate geometry to one O(4), one O(5), one O(6), one O(7), and one O(8) atom. In the second Sb site, Sb(2) is bonded in a distorted rectangular see-saw-like geometry to one O(3), one O(4), and two equivalent O(8) atoms. In the third Sb site, Sb(3) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(5), and two equivalent O(6) atoms. In the fourth Sb site, Sb(4) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(4), one O(6), and one O(7) atom. In the fifth Sb site, Sb(5) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(3), and two equivalent O(2) atoms. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Na(1), one Sb(4), and one Sb(5) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Sb(3) and two equivalent Sb(5) atoms. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Na(1), one Sb(2), and one Sb(5) atom. In the fourth O site, O(4) is bonded to one Na(1), one Sb(1), one Sb(2), and one Sb(4) atom to form a mixture of distorted edge and corner-sharing ONaSb3 trigonal pyramids. In the fifth O site, O(5) is bonded to two equivalent Na(1), one Sb(1), and one Sb(3) atom to form distorted ONa2Sb2 tetrahedra that share  a cornercorner with one O(4)NaSb3 trigonal pyramid,  an edgeedge with one O(5)Na2Sb2 tetrahedra, and  an edgeedge with one O(4)NaSb3 trigonal pyramid. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Sb(1), one Sb(4), and two equivalent Sb(3) atoms. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Na(1), one Sb(1), and one Sb(4) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Na(1), one Sb(1), and two equivalent Sb(2) atoms. is represented by the CIF card [CIF]
data_NaSb5O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.170
_cell_length_b   7.366
_cell_length_c   9.696
_cell_angle_alpha   106.193
_cell_angle_beta   106.355
_cell_angle_gamma   85.324
_symmetry_Int_Tables_number   1
_cell_volume   471.886
_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  0.251  0.566  0.966  1.0
  Na  Na1  1  0.749  0.434  0.034  1.0
  Sb  Sb2  1  0.542  0.825  0.276  1.0
  Sb  Sb3  1  0.458  0.175  0.724  1.0
  Sb  Sb4  1  0.747  0.939  0.027  1.0
  Sb  Sb5  1  0.253  0.061  0.973  1.0
  Sb  Sb6  1  0.536  0.397  0.331  1.0
  Sb  Sb7  1  0.464  0.603  0.669  1.0
  Sb  Sb8  1  0.107  0.763  0.335  1.0
  Sb  Sb9  1  0.893  0.237  0.665  1.0
  Sb  Sb10  1  0.969  0.694  0.659  1.0
  Sb  Sb11  1  0.031  0.306  0.341  1.0
  O  O12  1  0.066  0.488  0.234  1.0
  O  O13  1  0.934  0.512  0.766  1.0
  O  O14  1  0.824  0.457  0.426  1.0
  O  O15  1  0.176  0.543  0.574  1.0
  O  O16  1  0.813  0.192  0.163  1.0
  O  O17  1  0.187  0.808  0.837  1.0
  O  O18  1  0.850  0.806  0.196  1.0
  O  O19  1  0.150  0.194  0.804  1.0
  O  O20  1  0.542  0.553  0.183  1.0
  O  O21  1  0.458  0.447  0.817  1.0
  O  O22  1  0.442  0.641  0.440  1.0
  O  O23  1  0.558  0.359  0.560  1.0
  O  O24  1  0.755  0.183  0.798  1.0
  O  O25  1  0.245  0.817  0.202  1.0
  O  O26  1  0.497  0.106  0.920  1.0
  O  O27  1  0.503  0.894  0.080  1.0
[/CIF]
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