The compound described by Na4TaZnSi2PO12 crystallizes in the monoclinic Cc space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to one O(1), one O(10), one O(11), one O(7), and one O(9) atom. In the second Na site, Na(2) is bonded in a 4-coordinate geometry to one O(11), one O(12), one O(3), one O(8), and one O(9) atom. In the third Na site, Na(3) is bonded in a 4-coordinate geometry to one O(10), one O(12), one O(2), one O(7), and one O(8) atom. In the fourth Na site, Na(4) is bonded in a 6-coordinate 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 P(1)O4 tetrahedra. Zn(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 distorted ZnO6 octahedra that share corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and corners with two equivalent P(1)O4 tetrahedra. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(11), one O(2), one O(5), and one O(8) atom to form SiO4 tetrahedra that share corners with two equivalent Ta(1)O6 octahedra and corners with two equivalent Zn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-39°. In the second Si site, Si(2) is bonded to one O(12), one O(3), one O(4), and one O(7) atom to form SiO4 tetrahedra that share corners with two equivalent Ta(1)O6 octahedra and corners with two equivalent Zn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-39°. P(1) is bonded to one O(1), one O(10), one O(6), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Ta(1)O6 octahedra and corners with two equivalent Zn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-40°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Na(1), one Zn(1), and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Na(3), one Zn(1), and one Si(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Na(2), one Zn(1), and one Si(2) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Ta(1) and one Si(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Ta(1) and one Si(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Ta(1) and one P(1) atom. In the seventh O site, O(7) is bonded to one Na(1), one Na(3), one Na(4), one Zn(1), and one Si(2) atom to form distorted face-sharing ONa3ZnSi trigonal bipyramids. In the eighth O site, O(8) is bonded to one Na(2), one Na(3), one Na(4), one Zn(1), and one Si(1) atom to form distorted face-sharing ONa3ZnSi trigonal bipyramids. In the ninth O site, O(9) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Na(4), one Zn(1), and one P(1) atom. In the tenth O site, O(10) is bonded in a 5-coordinate geometry to one Na(1), one Na(3), one Na(4), one Ta(1), and one P(1) atom. In the eleventh O site, O(11) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Na(4), one Ta(1), and one Si(1) atom. In the twelfth O site, O(12) is bonded in a 5-coordinate geometry to one Na(2), one Na(3), one Na(4), one Ta(1), and one Si(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na4TaZnSi2PO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.066
_cell_length_b   9.084
_cell_length_c   9.066
_cell_angle_alpha   60.447
_cell_angle_beta   61.142
_cell_angle_gamma   60.447
_symmetry_Int_Tables_number   1
_cell_volume   536.005
_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  0.897  0.620  0.224  1.0
  Na  Na1  1  0.619  0.221  0.883  1.0
  Na  Na2  1  0.215  0.889  0.630  1.0
  Na  Na3  1  0.383  0.721  0.119  1.0
  Na  Na4  1  0.724  0.120  0.397  1.0
  Na  Na5  1  0.130  0.389  0.715  1.0
  Na  Na6  1  0.485  0.488  0.498  1.0
  Na  Na7  1  0.998  0.988  0.985  1.0
  O  O8  1  0.520  0.118  0.291  1.0
  O  O9  1  0.125  0.281  0.532  1.0
  O  O10  1  0.299  0.518  0.123  1.0
  O  O11  1  0.032  0.781  0.625  1.0
  O  O12  1  0.791  0.618  0.020  1.0
  O  O13  1  0.623  0.018  0.799  1.0
  O  O14  1  0.498  0.859  0.724  1.0
  O  O15  1  0.858  0.723  0.499  1.0
  O  O16  1  0.725  0.497  0.866  1.0
  O  O17  1  0.999  0.223  0.358  1.0
  O  O18  1  0.224  0.359  0.998  1.0
  O  O19  1  0.366  0.997  0.225  1.0
  O  O20  1  0.428  0.227  0.586  1.0
  O  O21  1  0.233  0.594  0.413  1.0
  O  O22  1  0.610  0.415  0.212  1.0
  O  O23  1  0.913  0.094  0.733  1.0
  O  O24  1  0.086  0.727  0.928  1.0
  O  O25  1  0.712  0.915  0.110  1.0
  O  O26  1  0.542  0.787  0.435  1.0
  O  O27  1  0.772  0.442  0.550  1.0
  O  O28  1  0.436  0.557  0.772  1.0
  O  O29  1  0.050  0.942  0.272  1.0
  O  O30  1  0.935  0.287  0.042  1.0
  O  O31  1  0.272  0.057  0.936  1.0
  P  P32  1  0.540  0.960  0.260  1.0
  P  P33  1  0.760  0.460  0.040  1.0
  Si  Si34  1  0.955  0.255  0.549  1.0
  Si  Si35  1  0.256  0.547  0.958  1.0
  Si  Si36  1  0.049  0.755  0.455  1.0
  Si  Si37  1  0.458  0.047  0.756  1.0
  Ta  Ta38  1  0.645  0.650  0.646  1.0
  Ta  Ta39  1  0.146  0.150  0.145  1.0
  Zn  Zn40  1  0.335  0.351  0.357  1.0
  Zn  Zn41  1  0.857  0.851  0.835  1.0
[/CIF]
.
The compound described by Na4TaZnSi2PO12 crystallizes in the monoclinic Cc space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to one O(1), one O(10), one O(11), one O(7), and one O(9) atom. In the second Na site, Na(2) is bonded in a 4-coordinate geometry to one O(11), one O(12), one O(3), one O(8), and one O(9) atom. In the third Na site, Na(3) is bonded in a 4-coordinate geometry to one O(10), one O(12), one O(2), one O(7), and one O(8) atom. In the fourth Na site, Na(4) is bonded in a 6-coordinate 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 P(1)O4 tetrahedra. Zn(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 distorted ZnO6 octahedra that share corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and corners with two equivalent P(1)O4 tetrahedra. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(11), one O(2), one O(5), and one O(8) atom to form SiO4 tetrahedra that share corners with two equivalent Ta(1)O6 octahedra and corners with two equivalent Zn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-39°. In the second Si site, Si(2) is bonded to one O(12), one O(3), one O(4), and one O(7) atom to form SiO4 tetrahedra that share corners with two equivalent Ta(1)O6 octahedra and corners with two equivalent Zn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-39°. P(1) is bonded to one O(1), one O(10), one O(6), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Ta(1)O6 octahedra and corners with two equivalent Zn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-40°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Na(1), one Zn(1), and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Na(3), one Zn(1), and one Si(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Na(2), one Zn(1), and one Si(2) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Ta(1) and one Si(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Ta(1) and one Si(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Ta(1) and one P(1) atom. In the seventh O site, O(7) is bonded to one Na(1), one Na(3), one Na(4), one Zn(1), and one Si(2) atom to form distorted face-sharing ONa3ZnSi trigonal bipyramids. In the eighth O site, O(8) is bonded to one Na(2), one Na(3), one Na(4), one Zn(1), and one Si(1) atom to form distorted face-sharing ONa3ZnSi trigonal bipyramids. In the ninth O site, O(9) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Na(4), one Zn(1), and one P(1) atom. In the tenth O site, O(10) is bonded in a 5-coordinate geometry to one Na(1), one Na(3), one Na(4), one Ta(1), and one P(1) atom. In the eleventh O site, O(11) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Na(4), one Ta(1), and one Si(1) atom. In the twelfth O site, O(12) is bonded in a 5-coordinate geometry to one Na(2), one Na(3), one Na(4), one Ta(1), and one Si(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na4TaZnSi2PO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.066
_cell_length_b   9.084
_cell_length_c   9.066
_cell_angle_alpha   60.447
_cell_angle_beta   61.142
_cell_angle_gamma   60.447
_symmetry_Int_Tables_number   1
_cell_volume   536.005
_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  0.897  0.620  0.224  1.0
  Na  Na1  1  0.619  0.221  0.883  1.0
  Na  Na2  1  0.215  0.889  0.630  1.0
  Na  Na3  1  0.383  0.721  0.119  1.0
  Na  Na4  1  0.724  0.120  0.397  1.0
  Na  Na5  1  0.130  0.389  0.715  1.0
  Na  Na6  1  0.485  0.488  0.498  1.0
  Na  Na7  1  0.998  0.988  0.985  1.0
  O  O8  1  0.520  0.118  0.291  1.0
  O  O9  1  0.125  0.281  0.532  1.0
  O  O10  1  0.299  0.518  0.123  1.0
  O  O11  1  0.032  0.781  0.625  1.0
  O  O12  1  0.791  0.618  0.020  1.0
  O  O13  1  0.623  0.018  0.799  1.0
  O  O14  1  0.498  0.859  0.724  1.0
  O  O15  1  0.858  0.723  0.499  1.0
  O  O16  1  0.725  0.497  0.866  1.0
  O  O17  1  0.999  0.223  0.358  1.0
  O  O18  1  0.224  0.359  0.998  1.0
  O  O19  1  0.366  0.997  0.225  1.0
  O  O20  1  0.428  0.227  0.586  1.0
  O  O21  1  0.233  0.594  0.413  1.0
  O  O22  1  0.610  0.415  0.212  1.0
  O  O23  1  0.913  0.094  0.733  1.0
  O  O24  1  0.086  0.727  0.928  1.0
  O  O25  1  0.712  0.915  0.110  1.0
  O  O26  1  0.542  0.787  0.435  1.0
  O  O27  1  0.772  0.442  0.550  1.0
  O  O28  1  0.436  0.557  0.772  1.0
  O  O29  1  0.050  0.942  0.272  1.0
  O  O30  1  0.935  0.287  0.042  1.0
  O  O31  1  0.272  0.057  0.936  1.0
  P  P32  1  0.540  0.960  0.260  1.0
  P  P33  1  0.760  0.460  0.040  1.0
  Si  Si34  1  0.955  0.255  0.549  1.0
  Si  Si35  1  0.256  0.547  0.958  1.0
  Si  Si36  1  0.049  0.755  0.455  1.0
  Si  Si37  1  0.458  0.047  0.756  1.0
  Ta  Ta38  1  0.645  0.650  0.646  1.0
  Ta  Ta39  1  0.146  0.150  0.145  1.0
  Zn  Zn40  1  0.335  0.351  0.357  1.0
  Zn  Zn41  1  0.857  0.851  0.835  1.0
[/CIF]
.