The crystal structure described by NaMgNbP2SO12 crystallizes in the monoclinic Cc space group. Na(1) is bonded in a distorted hexagonal planar geometry to one O(10), one O(11), one O(12), one O(7), one O(8), and one O(9) atom. Mg(1) is bonded to one O(1), one O(2), one O(3), one O(7), one O(8), and one O(9) atom to form MgO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with two equivalent S(1)O4 tetrahedra. Nb(1) is bonded to one O(10), one O(11), one O(12), one O(4), one O(5), and one O(6) atom to form NbO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with two equivalent S(1)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(11), one O(2), one O(5), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Mg(1)O6 octahedra and corners with two equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-34°. In the second P site, P(2) is bonded to one O(12), one O(3), one O(4), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Mg(1)O6 octahedra and corners with two equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 22-34°. S(1) is bonded to one O(1), one O(10), one O(6), and one O(9) atom to form SO4 tetrahedra that share corners with two equivalent Mg(1)O6 octahedra and corners with two equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-36°. There are twelve inequivalent O sites. In the first O site, O(6) is bonded in a bent 150 degrees geometry to one Nb(1) and one S(1) atom. In the second O site, O(7) is bonded in a 3-coordinate geometry to one Na(1), one Mg(1), and one P(2) atom. In the third O site, O(8) is bonded in a 3-coordinate geometry to one Na(1), one Mg(1), and one P(1) atom. In the fourth O site, O(9) is bonded in a 3-coordinate geometry to one Na(1), one Mg(1), and one S(1) atom. In the fifth O site, O(10) is bonded in a 3-coordinate geometry to one Na(1), one Nb(1), and one S(1) atom. In the sixth O site, O(11) is bonded in a 3-coordinate geometry to one Na(1), one Nb(1), and one P(1) atom. In the seventh O site, O(12) is bonded in a 3-coordinate geometry to one Na(1), one Nb(1), and one P(2) atom. In the eighth O site, O(1) is bonded in a bent 150 degrees geometry to one Mg(1) and one S(1) atom. In the ninth O site, O(2) is bonded in a bent 150 degrees geometry to one Mg(1) and one P(1) atom. In the tenth O site, O(3) is bonded in a bent 150 degrees geometry to one Mg(1) and one P(2) atom. In the eleventh O site, O(4) is bonded in a bent 150 degrees geometry to one Nb(1) and one P(2) atom. In the twelfth O site, O(5) is bonded in a bent 150 degrees geometry to one Nb(1) and one P(1) atom. is represented by the CIF card [CIF]
data_NaMgNbP2SO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.735
_cell_length_b   8.748
_cell_length_c   9.102
_cell_angle_alpha   61.561
_cell_angle_beta   90.000
_cell_angle_gamma   119.952
_symmetry_Int_Tables_number   1
_cell_volume   503.419
_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
  Mg  Mg0  1  0.342  0.701  0.942  1.0
  Mg  Mg1  1  0.859  0.701  0.442  1.0
  Na  Na2  1  0.488  0.992  0.517  1.0
  Na  Na3  1  0.004  0.992  0.017  1.0
  Nb  Nb4  1  0.644  0.287  0.063  1.0
  Nb  Nb5  1  0.142  0.287  0.563  1.0
  O  O6  1  0.513  0.790  0.090  1.0
  O  O7  1  0.128  0.638  0.085  1.0
  O  O8  1  0.285  0.410  0.083  1.0
  O  O9  1  0.010  0.638  0.585  1.0
  O  O10  1  0.777  0.790  0.590  1.0
  O  O11  1  0.626  0.410  0.583  1.0
  O  O12  1  0.496  0.220  0.914  1.0
  O  O13  1  0.866  0.363  0.913  1.0
  O  O14  1  0.727  0.602  0.909  1.0
  O  O15  1  0.997  0.363  0.413  1.0
  O  O16  1  0.225  0.220  0.414  1.0
  O  O17  1  0.375  0.602  0.409  1.0
  O  O18  1  0.432  0.011  0.773  1.0
  O  O19  1  0.221  0.644  0.770  1.0
  O  O20  1  0.589  0.799  0.773  1.0
  O  O21  1  0.923  0.644  0.270  1.0
  O  O22  1  0.079  0.011  0.273  1.0
  O  O23  1  0.710  0.799  0.273  1.0
  O  O24  1  0.558  0.977  0.234  1.0
  O  O25  1  0.783  0.344  0.226  1.0
  O  O26  1  0.428  0.211  0.226  1.0
  O  O27  1  0.061  0.344  0.726  1.0
  O  O28  1  0.919  0.977  0.734  1.0
  O  O29  1  0.283  0.211  0.726  1.0
  P  P30  1  0.965  0.511  0.243  1.0
  P  P31  1  0.245  0.213  0.242  1.0
  P  P32  1  0.046  0.511  0.743  1.0
  P  P33  1  0.467  0.213  0.742  1.0
  S  S34  1  0.542  0.787  0.247  1.0
  S  S35  1  0.746  0.787  0.747  1.0
[/CIF]
.
The crystal structure described by NaMgNbP2SO12 crystallizes in the monoclinic Cc space group. Na(1) is bonded in a distorted hexagonal planar geometry to one O(10), one O(11), one O(12), one O(7), one O(8), and one O(9) atom. Mg(1) is bonded to one O(1), one O(2), one O(3), one O(7), one O(8), and one O(9) atom to form MgO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with two equivalent S(1)O4 tetrahedra. Nb(1) is bonded to one O(10), one O(11), one O(12), one O(4), one O(5), and one O(6) atom to form NbO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with two equivalent S(1)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(11), one O(2), one O(5), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Mg(1)O6 octahedra and corners with two equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-34°. In the second P site, P(2) is bonded to one O(12), one O(3), one O(4), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Mg(1)O6 octahedra and corners with two equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 22-34°. S(1) is bonded to one O(1), one O(10), one O(6), and one O(9) atom to form SO4 tetrahedra that share corners with two equivalent Mg(1)O6 octahedra and corners with two equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-36°. There are twelve inequivalent O sites. In the first O site, O(6) is bonded in a bent 150 degrees geometry to one Nb(1) and one S(1) atom. In the second O site, O(7) is bonded in a 3-coordinate geometry to one Na(1), one Mg(1), and one P(2) atom. In the third O site, O(8) is bonded in a 3-coordinate geometry to one Na(1), one Mg(1), and one P(1) atom. In the fourth O site, O(9) is bonded in a 3-coordinate geometry to one Na(1), one Mg(1), and one S(1) atom. In the fifth O site, O(10) is bonded in a 3-coordinate geometry to one Na(1), one Nb(1), and one S(1) atom. In the sixth O site, O(11) is bonded in a 3-coordinate geometry to one Na(1), one Nb(1), and one P(1) atom. In the seventh O site, O(12) is bonded in a 3-coordinate geometry to one Na(1), one Nb(1), and one P(2) atom. In the eighth O site, O(1) is bonded in a bent 150 degrees geometry to one Mg(1) and one S(1) atom. In the ninth O site, O(2) is bonded in a bent 150 degrees geometry to one Mg(1) and one P(1) atom. In the tenth O site, O(3) is bonded in a bent 150 degrees geometry to one Mg(1) and one P(2) atom. In the eleventh O site, O(4) is bonded in a bent 150 degrees geometry to one Nb(1) and one P(2) atom. In the twelfth O site, O(5) is bonded in a bent 150 degrees geometry to one Nb(1) and one P(1) atom. is represented by the CIF card [CIF]
data_NaMgNbP2SO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.735
_cell_length_b   8.748
_cell_length_c   9.102
_cell_angle_alpha   61.561
_cell_angle_beta   90.000
_cell_angle_gamma   119.952
_symmetry_Int_Tables_number   1
_cell_volume   503.419
_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
  Mg  Mg0  1  0.342  0.701  0.942  1.0
  Mg  Mg1  1  0.859  0.701  0.442  1.0
  Na  Na2  1  0.488  0.992  0.517  1.0
  Na  Na3  1  0.004  0.992  0.017  1.0
  Nb  Nb4  1  0.644  0.287  0.063  1.0
  Nb  Nb5  1  0.142  0.287  0.563  1.0
  O  O6  1  0.513  0.790  0.090  1.0
  O  O7  1  0.128  0.638  0.085  1.0
  O  O8  1  0.285  0.410  0.083  1.0
  O  O9  1  0.010  0.638  0.585  1.0
  O  O10  1  0.777  0.790  0.590  1.0
  O  O11  1  0.626  0.410  0.583  1.0
  O  O12  1  0.496  0.220  0.914  1.0
  O  O13  1  0.866  0.363  0.913  1.0
  O  O14  1  0.727  0.602  0.909  1.0
  O  O15  1  0.997  0.363  0.413  1.0
  O  O16  1  0.225  0.220  0.414  1.0
  O  O17  1  0.375  0.602  0.409  1.0
  O  O18  1  0.432  0.011  0.773  1.0
  O  O19  1  0.221  0.644  0.770  1.0
  O  O20  1  0.589  0.799  0.773  1.0
  O  O21  1  0.923  0.644  0.270  1.0
  O  O22  1  0.079  0.011  0.273  1.0
  O  O23  1  0.710  0.799  0.273  1.0
  O  O24  1  0.558  0.977  0.234  1.0
  O  O25  1  0.783  0.344  0.226  1.0
  O  O26  1  0.428  0.211  0.226  1.0
  O  O27  1  0.061  0.344  0.726  1.0
  O  O28  1  0.919  0.977  0.734  1.0
  O  O29  1  0.283  0.211  0.726  1.0
  P  P30  1  0.965  0.511  0.243  1.0
  P  P31  1  0.245  0.213  0.242  1.0
  P  P32  1  0.046  0.511  0.743  1.0
  P  P33  1  0.467  0.213  0.742  1.0
  S  S34  1  0.542  0.787  0.247  1.0
  S  S35  1  0.746  0.787  0.747  1.0
[/CIF]
.