The crystal structure described by NaTaGeSi2SO12 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. Ta(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 TaO6 octahedra that share corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and corners with two equivalent S(1)O4 tetrahedra. Ge(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(7), one O(8), and one O(9) atom. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(10), one O(4), and one O(7) atom to form SiO4 tetrahedra that share corners with two equivalent Ta(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 22-32°. In the second Si site, Si(2) is bonded to one O(11), one O(2), one O(6), and one O(9) atom to form SiO4 tetrahedra that share corners with two equivalent Ta(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-29°. S(1) is bonded to one O(12), one O(3), one O(5), and one O(8) atom to form SO4 tetrahedra that share corners with two equivalent Ta(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-37°. There are twelve inequivalent O sites. In the first O site, O(6) is bonded in a bent 150 degrees geometry to one Ta(1) and one Si(2) atom. In the second O site, O(7) is bonded in a 3-coordinate geometry to one Na(1), one Ge(1), and one Si(1) atom. In the third O site, O(8) is bonded in a distorted single-bond geometry to one Na(1), one Ge(1), and one S(1) atom. In the fourth O site, O(9) is bonded in a 3-coordinate geometry to one Na(1), one Ge(1), and one Si(2) atom. In the fifth O site, O(10) is bonded in a 3-coordinate geometry to one Na(1), one Ta(1), and one Si(1) atom. In the sixth O site, O(11) is bonded in a 3-coordinate geometry to one Na(1), one Ta(1), and one Si(2) atom. In the seventh O site, O(12) is bonded in a distorted bent 150 degrees geometry to one Na(1), one Ta(1), and one S(1) atom. In the eighth O site, O(1) is bonded in a bent 150 degrees geometry to one Ge(1) and one Si(1) atom. In the ninth O site, O(2) is bonded in a bent 150 degrees geometry to one Ge(1) and one Si(2) atom. In the tenth O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Ge(1) and one S(1) atom. In the eleventh O site, O(4) is bonded in a bent 150 degrees geometry to one Ta(1) and one Si(1) atom. In the twelfth O site, O(5) is bonded in a bent 150 degrees geometry to one Ta(1) and one S(1) atom. is represented by the CIF file [CIF]
data_NaTaSi2GeSO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.694
_cell_length_b   8.694
_cell_length_c   8.935
_cell_angle_alpha   92.885
_cell_angle_beta   116.550
_cell_angle_gamma   119.267
_symmetry_Int_Tables_number   1
_cell_volume   494.779
_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
  Ge  Ge0  1  0.321  0.693  0.934  1.0
  Ge  Ge1  1  0.242  0.113  0.434  1.0
  Na  Na2  1  0.022  0.506  0.512  1.0
  Na  Na3  1  0.005  0.990  0.012  1.0
  O  O4  1  0.595  0.860  0.068  1.0
  O  O5  1  0.226  0.722  0.068  1.0
  O  O6  1  0.366  0.487  0.090  1.0
  O  O7  1  0.603  0.224  0.590  1.0
  O  O8  1  0.347  0.343  0.568  1.0
  O  O9  1  0.209  0.973  0.568  1.0
  O  O10  1  0.425  0.143  0.925  1.0
  O  O11  1  0.791  0.286  0.914  1.0
  O  O12  1  0.639  0.501  0.922  1.0
  O  O13  1  0.422  0.783  0.422  1.0
  O  O14  1  0.628  0.623  0.414  1.0
  O  O15  1  0.783  1.000  0.425  1.0
  O  O16  1  0.200  0.770  0.765  1.0
  O  O17  1  0.980  0.413  0.766  1.0
  O  O18  1  0.322  0.546  0.779  1.0
  O  O19  1  0.233  0.957  0.279  1.0
  O  O20  1  0.353  0.287  0.266  1.0
  O  O21  1  0.995  0.065  0.265  1.0
  O  O22  1  0.795  0.228  0.230  1.0
  O  O23  1  0.008  0.585  0.223  1.0
  O  O24  1  0.652  0.444  0.238  1.0
  O  O25  1  0.793  0.086  0.738  1.0
  O  O26  1  0.638  0.715  0.723  1.0
  O  O27  1  0.002  0.936  0.730  1.0
  S  S28  1  0.486  0.456  0.245  1.0
  S  S29  1  0.790  0.259  0.745  1.0
  Si  Si30  1  0.789  0.040  0.251  1.0
  Si  Si31  1  0.225  0.764  0.249  1.0
  Si  Si32  1  0.485  0.524  0.749  1.0
  Si  Si33  1  0.211  0.962  0.751  1.0
  Ta  Ta34  1  0.715  0.364  0.070  1.0
  Ta  Ta35  1  0.706  0.855  0.570  1.0
[/CIF]
.
The crystal structure described by NaTaGeSi2SO12 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. Ta(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 TaO6 octahedra that share corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and corners with two equivalent S(1)O4 tetrahedra. Ge(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(7), one O(8), and one O(9) atom. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(10), one O(4), and one O(7) atom to form SiO4 tetrahedra that share corners with two equivalent Ta(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 22-32°. In the second Si site, Si(2) is bonded to one O(11), one O(2), one O(6), and one O(9) atom to form SiO4 tetrahedra that share corners with two equivalent Ta(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-29°. S(1) is bonded to one O(12), one O(3), one O(5), and one O(8) atom to form SO4 tetrahedra that share corners with two equivalent Ta(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-37°. There are twelve inequivalent O sites. In the first O site, O(6) is bonded in a bent 150 degrees geometry to one Ta(1) and one Si(2) atom. In the second O site, O(7) is bonded in a 3-coordinate geometry to one Na(1), one Ge(1), and one Si(1) atom. In the third O site, O(8) is bonded in a distorted single-bond geometry to one Na(1), one Ge(1), and one S(1) atom. In the fourth O site, O(9) is bonded in a 3-coordinate geometry to one Na(1), one Ge(1), and one Si(2) atom. In the fifth O site, O(10) is bonded in a 3-coordinate geometry to one Na(1), one Ta(1), and one Si(1) atom. In the sixth O site, O(11) is bonded in a 3-coordinate geometry to one Na(1), one Ta(1), and one Si(2) atom. In the seventh O site, O(12) is bonded in a distorted bent 150 degrees geometry to one Na(1), one Ta(1), and one S(1) atom. In the eighth O site, O(1) is bonded in a bent 150 degrees geometry to one Ge(1) and one Si(1) atom. In the ninth O site, O(2) is bonded in a bent 150 degrees geometry to one Ge(1) and one Si(2) atom. In the tenth O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Ge(1) and one S(1) atom. In the eleventh O site, O(4) is bonded in a bent 150 degrees geometry to one Ta(1) and one Si(1) atom. In the twelfth O site, O(5) is bonded in a bent 150 degrees geometry to one Ta(1) and one S(1) atom. is represented by the CIF file [CIF]
data_NaTaSi2GeSO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.694
_cell_length_b   8.694
_cell_length_c   8.935
_cell_angle_alpha   92.885
_cell_angle_beta   116.550
_cell_angle_gamma   119.267
_symmetry_Int_Tables_number   1
_cell_volume   494.779
_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
  Ge  Ge0  1  0.321  0.693  0.934  1.0
  Ge  Ge1  1  0.242  0.113  0.434  1.0
  Na  Na2  1  0.022  0.506  0.512  1.0
  Na  Na3  1  0.005  0.990  0.012  1.0
  O  O4  1  0.595  0.860  0.068  1.0
  O  O5  1  0.226  0.722  0.068  1.0
  O  O6  1  0.366  0.487  0.090  1.0
  O  O7  1  0.603  0.224  0.590  1.0
  O  O8  1  0.347  0.343  0.568  1.0
  O  O9  1  0.209  0.973  0.568  1.0
  O  O10  1  0.425  0.143  0.925  1.0
  O  O11  1  0.791  0.286  0.914  1.0
  O  O12  1  0.639  0.501  0.922  1.0
  O  O13  1  0.422  0.783  0.422  1.0
  O  O14  1  0.628  0.623  0.414  1.0
  O  O15  1  0.783  1.000  0.425  1.0
  O  O16  1  0.200  0.770  0.765  1.0
  O  O17  1  0.980  0.413  0.766  1.0
  O  O18  1  0.322  0.546  0.779  1.0
  O  O19  1  0.233  0.957  0.279  1.0
  O  O20  1  0.353  0.287  0.266  1.0
  O  O21  1  0.995  0.065  0.265  1.0
  O  O22  1  0.795  0.228  0.230  1.0
  O  O23  1  0.008  0.585  0.223  1.0
  O  O24  1  0.652  0.444  0.238  1.0
  O  O25  1  0.793  0.086  0.738  1.0
  O  O26  1  0.638  0.715  0.723  1.0
  O  O27  1  0.002  0.936  0.730  1.0
  S  S28  1  0.486  0.456  0.245  1.0
  S  S29  1  0.790  0.259  0.745  1.0
  Si  Si30  1  0.789  0.040  0.251  1.0
  Si  Si31  1  0.225  0.764  0.249  1.0
  Si  Si32  1  0.485  0.524  0.749  1.0
  Si  Si33  1  0.211  0.962  0.751  1.0
  Ta  Ta34  1  0.715  0.364  0.070  1.0
  Ta  Ta35  1  0.706  0.855  0.570  1.0
[/CIF]
.