The compound described by Na5MgSbO5 crystallizes in the triclinic P1 space group. There are five inequivalent Na sites. In the first Na site, Na(1) is bonded in a 3-coordinate geometry to one O(1), one O(3), one O(4), and one O(5) atom. In the second Na site, Na(2) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form distorted NaO4 tetrahedra that share corners with three equivalent Na(4)O4 tetrahedra and corners with four equivalent Sb(1)O5 trigonal bipyramids. In the third Na site, Na(3) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(3) atom. In the fourth Na site, Na(4) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form distorted NaO4 tetrahedra that share corners with three equivalent Na(2)O4 tetrahedra, corners with two equivalent Sb(1)O5 trigonal bipyramids, and  an edgeedge with one Sb(1)O5 trigonal bipyramid. In the fifth Na site, Na(5) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(4) atom. Mg(1) is bonded in a 3-coordinate geometry to one O(1), one O(3), and one O(5) atom. Sb(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(5) atom to form distorted SbO5 trigonal bipyramids that share corners with two equivalent Na(4)O4 tetrahedra, corners with four equivalent Na(2)O4 tetrahedra, and  an edgeedge with one Na(4)O4 tetrahedra. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Na(1), one Na(3), one Na(4), one Na(5), one Mg(1), and one Sb(1) atom to form ONa4MgSb pentagonal pyramids that share corners with two equivalent O(3)Na4MgSb octahedra, corners with four equivalent O(4)Na4Sb trigonal bipyramids, edges with two equivalent O(2)Na4Sb trigonal bipyramids, and  a faceface with one O(3)Na4MgSb octahedra. The corner-sharing octahedral tilt angles range from 61-64°. In the second O site, O(2) is bonded to one Na(2), one Na(3), one Na(4), one Na(5), and one Sb(1) atom to form ONa4Sb trigonal bipyramids that share corners with four equivalent O(3)Na4MgSb octahedra, corners with two equivalent O(4)Na4Sb trigonal bipyramids, edges with two equivalent O(1)Na4MgSb pentagonal pyramids, and  an edgeedge with one O(4)Na4Sb trigonal bipyramid. The corner-sharing octahedral tilt angles range from 19-76°. In the third O site, O(3) is bonded to one Na(1), one Na(2), one Na(3), one Na(5), one Mg(1), and one Sb(1) atom to form distorted ONa4MgSb octahedra that share corners with two equivalent O(1)Na4MgSb pentagonal pyramids, corners with four equivalent O(2)Na4Sb trigonal bipyramids, edges with two equivalent O(4)Na4Sb trigonal bipyramids, and  a faceface with one O(1)Na4MgSb pentagonal pyramid. In the fourth O site, O(4) is bonded to one Na(1), one Na(2), one Na(4), one Na(5), and one Sb(1) atom to form ONa4Sb trigonal bipyramids that share corners with four equivalent O(1)Na4MgSb pentagonal pyramids, corners with two equivalent O(2)Na4Sb trigonal bipyramids, edges with two equivalent O(3)Na4MgSb octahedra, and  an edgeedge with one O(2)Na4Sb trigonal bipyramid. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Na(4), one Mg(1), and one Sb(1) atom. is represented by the CIF card [CIF]
data_Na5MgSbO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.834
_cell_length_b   6.102
_cell_length_c   6.454
_cell_angle_alpha   75.667
_cell_angle_beta   91.009
_cell_angle_gamma   60.599
_symmetry_Int_Tables_number   1
_cell_volume   191.286
_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  0.838  0.593  0.865  1.0
  Na  Na1  1  0.754  0.608  0.307  1.0
  Na  Na2  1  0.420  0.479  0.617  1.0
  Na  Na3  1  0.386  0.337  0.122  1.0
  Na  Na4  1  0.868  0.994  0.482  1.0
  Mg  Mg5  1  0.290  0.036  0.663  1.0
  Sb  Sb6  1  0.052  0.987  0.012  1.0
  O  O7  1  0.161  0.743  0.818  1.0
  O  O8  1  0.107  0.697  0.267  1.0
  O  O9  1  0.902  0.268  0.700  1.0
  O  O10  1  0.826  0.269  0.143  1.0
  O  O11  1  0.390  0.990  0.993  1.0
[/CIF]
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The compound described by Na5MgSbO5 crystallizes in the triclinic P1 space group. There are five inequivalent Na sites. In the first Na site, Na(1) is bonded in a 3-coordinate geometry to one O(1), one O(3), one O(4), and one O(5) atom. In the second Na site, Na(2) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form distorted NaO4 tetrahedra that share corners with three equivalent Na(4)O4 tetrahedra and corners with four equivalent Sb(1)O5 trigonal bipyramids. In the third Na site, Na(3) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(3) atom. In the fourth Na site, Na(4) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form distorted NaO4 tetrahedra that share corners with three equivalent Na(2)O4 tetrahedra, corners with two equivalent Sb(1)O5 trigonal bipyramids, and  an edgeedge with one Sb(1)O5 trigonal bipyramid. In the fifth Na site, Na(5) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(4) atom. Mg(1) is bonded in a 3-coordinate geometry to one O(1), one O(3), and one O(5) atom. Sb(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(5) atom to form distorted SbO5 trigonal bipyramids that share corners with two equivalent Na(4)O4 tetrahedra, corners with four equivalent Na(2)O4 tetrahedra, and  an edgeedge with one Na(4)O4 tetrahedra. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Na(1), one Na(3), one Na(4), one Na(5), one Mg(1), and one Sb(1) atom to form ONa4MgSb pentagonal pyramids that share corners with two equivalent O(3)Na4MgSb octahedra, corners with four equivalent O(4)Na4Sb trigonal bipyramids, edges with two equivalent O(2)Na4Sb trigonal bipyramids, and  a faceface with one O(3)Na4MgSb octahedra. The corner-sharing octahedral tilt angles range from 61-64°. In the second O site, O(2) is bonded to one Na(2), one Na(3), one Na(4), one Na(5), and one Sb(1) atom to form ONa4Sb trigonal bipyramids that share corners with four equivalent O(3)Na4MgSb octahedra, corners with two equivalent O(4)Na4Sb trigonal bipyramids, edges with two equivalent O(1)Na4MgSb pentagonal pyramids, and  an edgeedge with one O(4)Na4Sb trigonal bipyramid. The corner-sharing octahedral tilt angles range from 19-76°. In the third O site, O(3) is bonded to one Na(1), one Na(2), one Na(3), one Na(5), one Mg(1), and one Sb(1) atom to form distorted ONa4MgSb octahedra that share corners with two equivalent O(1)Na4MgSb pentagonal pyramids, corners with four equivalent O(2)Na4Sb trigonal bipyramids, edges with two equivalent O(4)Na4Sb trigonal bipyramids, and  a faceface with one O(1)Na4MgSb pentagonal pyramid. In the fourth O site, O(4) is bonded to one Na(1), one Na(2), one Na(4), one Na(5), and one Sb(1) atom to form ONa4Sb trigonal bipyramids that share corners with four equivalent O(1)Na4MgSb pentagonal pyramids, corners with two equivalent O(2)Na4Sb trigonal bipyramids, edges with two equivalent O(3)Na4MgSb octahedra, and  an edgeedge with one O(2)Na4Sb trigonal bipyramid. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Na(4), one Mg(1), and one Sb(1) atom. is represented by the CIF card [CIF]
data_Na5MgSbO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.834
_cell_length_b   6.102
_cell_length_c   6.454
_cell_angle_alpha   75.667
_cell_angle_beta   91.009
_cell_angle_gamma   60.599
_symmetry_Int_Tables_number   1
_cell_volume   191.286
_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  0.838  0.593  0.865  1.0
  Na  Na1  1  0.754  0.608  0.307  1.0
  Na  Na2  1  0.420  0.479  0.617  1.0
  Na  Na3  1  0.386  0.337  0.122  1.0
  Na  Na4  1  0.868  0.994  0.482  1.0
  Mg  Mg5  1  0.290  0.036  0.663  1.0
  Sb  Sb6  1  0.052  0.987  0.012  1.0
  O  O7  1  0.161  0.743  0.818  1.0
  O  O8  1  0.107  0.697  0.267  1.0
  O  O9  1  0.902  0.268  0.700  1.0
  O  O10  1  0.826  0.269  0.143  1.0
  O  O11  1  0.390  0.990  0.993  1.0
[/CIF]
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