The material structure described by Na4AlSnSi2PO12 crystallizes in the monoclinic Cc space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(11), one O(3), one O(7), one O(9), and two equivalent O(5) atoms. In the second Na site, Na(2) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(12), one O(3), one O(4), one O(6), one O(8), and one O(9) atom. In the third Na site, Na(3) is bonded in a 8-coordinate geometry to one O(10), one O(12), one O(4), one O(6), one O(7), one O(8), and two equivalent O(2) atoms. In the fourth Na site, Na(4) 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. Al(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 AlO6 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. Sn(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 SnO6 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 Al(1)O6 octahedra and corners with two equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-38°. 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 Al(1)O6 octahedra and corners with two equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-39°. 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 Al(1)O6 octahedra and corners with two equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 30-37°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Na(1), one Na(2), one Al(1), and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to two equivalent Na(3), one Al(1), and one Si(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Na(1), one Na(2), one Al(1), and one Si(2) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Na(2), one Na(3), one Sn(1), and one Si(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to two equivalent Na(1), one Sn(1), and one Si(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Na(2), one Na(3), one Sn(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 Al(1), and one Si(2) atom to form distorted ONa3AlSi trigonal bipyramids that share  a cornercorner with one O(12)Na3SiSn trigonal bipyramid, corners with two equivalent O(11)Na3SiSn trigonal bipyramids, corners with three equivalent O(10)Na3SnP trigonal bipyramids,  an edgeedge with one O(12)Na3SiSn trigonal bipyramid, and  a faceface with one O(8)Na3AlSi trigonal bipyramid. In the eighth O site, O(8) is bonded to one Na(2), one Na(3), one Na(4), one Al(1), and one Si(1) atom to form distorted ONa3AlSi trigonal bipyramids that share  a cornercorner with one O(11)Na3SiSn trigonal bipyramid, corners with two equivalent O(10)Na3SnP trigonal bipyramids, corners with three equivalent O(12)Na3SiSn trigonal bipyramids,  an edgeedge with one O(11)Na3SiSn trigonal bipyramid, and  a faceface with one O(7)Na3AlSi trigonal bipyramid. 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 Al(1), and one P(1) atom. In the tenth O site, O(10) is bonded to one Na(1), one Na(3), one Na(4), one Sn(1), and one P(1) atom to form distorted ONa3SnP trigonal bipyramids that share corners with two equivalent O(8)Na3AlSi trigonal bipyramids, corners with three equivalent O(7)Na3AlSi trigonal bipyramids,  a faceface with one O(11)Na3SiSn trigonal bipyramid, and  a faceface with one O(12)Na3SiSn trigonal bipyramid. In the eleventh O site, O(11) is bonded to one Na(1), one Na(2), one Na(4), one Sn(1), and one Si(1) atom to form distorted ONa3SiSn trigonal bipyramids that share  a cornercorner with one O(8)Na3AlSi trigonal bipyramid, corners with two equivalent O(7)Na3AlSi trigonal bipyramids,  an edgeedge with one O(8)Na3AlSi trigonal bipyramid,  a faceface with one O(12)Na3SiSn trigonal bipyramid, and  a faceface with one O(10)Na3SnP trigonal bipyramid. In the twelfth O site, O(12) is bonded to one Na(2), one Na(3), one Na(4), one Sn(1), and one Si(2) atom to form distorted ONa3SiSn trigonal bipyramids that share  a cornercorner with one O(7)Na3AlSi trigonal bipyramid, corners with three equivalent O(8)Na3AlSi trigonal bipyramids,  an edgeedge with one O(7)Na3AlSi trigonal bipyramid,  a faceface with one O(11)Na3SiSn trigonal bipyramid, and  a faceface with one O(10)Na3SnP trigonal bipyramid. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na4AlSi2SnPO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.925
_cell_length_b   8.957
_cell_length_c   8.925
_cell_angle_alpha   119.720
_cell_angle_beta   119.751
_cell_angle_gamma   60.280
_symmetry_Int_Tables_number   1
_cell_volume   507.613
_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
  Al  Al0  1  0.639  0.057  0.339  1.0
  Al  Al1  1  0.161  0.557  0.861  1.0
  Na  Na2  1  0.752  0.751  0.888  1.0
  Na  Na3  1  0.120  0.741  0.615  1.0
  Na  Na4  1  0.378  0.750  0.244  1.0
  Na  Na5  1  0.885  0.241  0.380  1.0
  Na  Na6  1  0.612  0.251  0.748  1.0
  Na  Na7  1  0.256  0.250  0.122  1.0
  Na  Na8  1  0.497  0.493  0.496  1.0
  Na  Na9  1  0.004  0.993  0.003  1.0
  O  O10  1  0.727  0.921  0.512  1.0
  O  O11  1  0.488  0.928  0.145  1.0
  O  O12  1  0.854  0.930  0.278  1.0
  O  O13  1  0.355  0.428  0.012  1.0
  O  O14  1  0.988  0.421  0.773  1.0
  O  O15  1  0.222  0.430  0.646  1.0
  O  O16  1  0.265  0.071  0.472  1.0
  O  O17  1  0.528  0.071  0.864  1.0
  O  O18  1  0.126  0.080  0.732  1.0
  O  O19  1  0.636  0.571  0.972  1.0
  O  O20  1  0.028  0.571  0.235  1.0
  O  O21  1  0.768  0.580  0.374  1.0
  O  O22  1  0.438  0.229  0.440  1.0
  O  O23  1  0.568  0.232  0.231  1.0
  O  O24  1  0.783  0.232  0.579  1.0
  O  O25  1  0.269  0.732  0.932  1.0
  O  O26  1  0.060  0.729  0.062  1.0
  O  O27  1  0.921  0.732  0.717  1.0
  O  O28  1  0.584  0.765  0.566  1.0
  O  O29  1  0.432  0.766  0.772  1.0
  O  O30  1  0.228  0.765  0.423  1.0
  O  O31  1  0.728  0.266  0.068  1.0
  O  O32  1  0.934  0.265  0.916  1.0
  O  O33  1  0.077  0.265  0.272  1.0
  P  P34  1  0.753  0.757  0.545  1.0
  P  P35  1  0.955  0.257  0.747  1.0
  Si  Si36  1  0.453  0.755  0.961  1.0
  Si  Si37  1  0.036  0.757  0.246  1.0
  Si  Si38  1  0.539  0.255  0.047  1.0
  Si  Si39  1  0.254  0.257  0.464  1.0
  Sn  Sn40  1  0.350  0.948  0.648  1.0
  Sn  Sn41  1  0.852  0.448  0.150  1.0
[/CIF]
.
The material structure described by Na4AlSnSi2PO12 crystallizes in the monoclinic Cc space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(11), one O(3), one O(7), one O(9), and two equivalent O(5) atoms. In the second Na site, Na(2) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(12), one O(3), one O(4), one O(6), one O(8), and one O(9) atom. In the third Na site, Na(3) is bonded in a 8-coordinate geometry to one O(10), one O(12), one O(4), one O(6), one O(7), one O(8), and two equivalent O(2) atoms. In the fourth Na site, Na(4) 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. Al(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 AlO6 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. Sn(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 SnO6 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 Al(1)O6 octahedra and corners with two equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-38°. 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 Al(1)O6 octahedra and corners with two equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-39°. 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 Al(1)O6 octahedra and corners with two equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 30-37°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Na(1), one Na(2), one Al(1), and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to two equivalent Na(3), one Al(1), and one Si(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Na(1), one Na(2), one Al(1), and one Si(2) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Na(2), one Na(3), one Sn(1), and one Si(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to two equivalent Na(1), one Sn(1), and one Si(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Na(2), one Na(3), one Sn(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 Al(1), and one Si(2) atom to form distorted ONa3AlSi trigonal bipyramids that share  a cornercorner with one O(12)Na3SiSn trigonal bipyramid, corners with two equivalent O(11)Na3SiSn trigonal bipyramids, corners with three equivalent O(10)Na3SnP trigonal bipyramids,  an edgeedge with one O(12)Na3SiSn trigonal bipyramid, and  a faceface with one O(8)Na3AlSi trigonal bipyramid. In the eighth O site, O(8) is bonded to one Na(2), one Na(3), one Na(4), one Al(1), and one Si(1) atom to form distorted ONa3AlSi trigonal bipyramids that share  a cornercorner with one O(11)Na3SiSn trigonal bipyramid, corners with two equivalent O(10)Na3SnP trigonal bipyramids, corners with three equivalent O(12)Na3SiSn trigonal bipyramids,  an edgeedge with one O(11)Na3SiSn trigonal bipyramid, and  a faceface with one O(7)Na3AlSi trigonal bipyramid. 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 Al(1), and one P(1) atom. In the tenth O site, O(10) is bonded to one Na(1), one Na(3), one Na(4), one Sn(1), and one P(1) atom to form distorted ONa3SnP trigonal bipyramids that share corners with two equivalent O(8)Na3AlSi trigonal bipyramids, corners with three equivalent O(7)Na3AlSi trigonal bipyramids,  a faceface with one O(11)Na3SiSn trigonal bipyramid, and  a faceface with one O(12)Na3SiSn trigonal bipyramid. In the eleventh O site, O(11) is bonded to one Na(1), one Na(2), one Na(4), one Sn(1), and one Si(1) atom to form distorted ONa3SiSn trigonal bipyramids that share  a cornercorner with one O(8)Na3AlSi trigonal bipyramid, corners with two equivalent O(7)Na3AlSi trigonal bipyramids,  an edgeedge with one O(8)Na3AlSi trigonal bipyramid,  a faceface with one O(12)Na3SiSn trigonal bipyramid, and  a faceface with one O(10)Na3SnP trigonal bipyramid. In the twelfth O site, O(12) is bonded to one Na(2), one Na(3), one Na(4), one Sn(1), and one Si(2) atom to form distorted ONa3SiSn trigonal bipyramids that share  a cornercorner with one O(7)Na3AlSi trigonal bipyramid, corners with three equivalent O(8)Na3AlSi trigonal bipyramids,  an edgeedge with one O(7)Na3AlSi trigonal bipyramid,  a faceface with one O(11)Na3SiSn trigonal bipyramid, and  a faceface with one O(10)Na3SnP trigonal bipyramid. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na4AlSi2SnPO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.925
_cell_length_b   8.957
_cell_length_c   8.925
_cell_angle_alpha   119.720
_cell_angle_beta   119.751
_cell_angle_gamma   60.280
_symmetry_Int_Tables_number   1
_cell_volume   507.613
_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
  Al  Al0  1  0.639  0.057  0.339  1.0
  Al  Al1  1  0.161  0.557  0.861  1.0
  Na  Na2  1  0.752  0.751  0.888  1.0
  Na  Na3  1  0.120  0.741  0.615  1.0
  Na  Na4  1  0.378  0.750  0.244  1.0
  Na  Na5  1  0.885  0.241  0.380  1.0
  Na  Na6  1  0.612  0.251  0.748  1.0
  Na  Na7  1  0.256  0.250  0.122  1.0
  Na  Na8  1  0.497  0.493  0.496  1.0
  Na  Na9  1  0.004  0.993  0.003  1.0
  O  O10  1  0.727  0.921  0.512  1.0
  O  O11  1  0.488  0.928  0.145  1.0
  O  O12  1  0.854  0.930  0.278  1.0
  O  O13  1  0.355  0.428  0.012  1.0
  O  O14  1  0.988  0.421  0.773  1.0
  O  O15  1  0.222  0.430  0.646  1.0
  O  O16  1  0.265  0.071  0.472  1.0
  O  O17  1  0.528  0.071  0.864  1.0
  O  O18  1  0.126  0.080  0.732  1.0
  O  O19  1  0.636  0.571  0.972  1.0
  O  O20  1  0.028  0.571  0.235  1.0
  O  O21  1  0.768  0.580  0.374  1.0
  O  O22  1  0.438  0.229  0.440  1.0
  O  O23  1  0.568  0.232  0.231  1.0
  O  O24  1  0.783  0.232  0.579  1.0
  O  O25  1  0.269  0.732  0.932  1.0
  O  O26  1  0.060  0.729  0.062  1.0
  O  O27  1  0.921  0.732  0.717  1.0
  O  O28  1  0.584  0.765  0.566  1.0
  O  O29  1  0.432  0.766  0.772  1.0
  O  O30  1  0.228  0.765  0.423  1.0
  O  O31  1  0.728  0.266  0.068  1.0
  O  O32  1  0.934  0.265  0.916  1.0
  O  O33  1  0.077  0.265  0.272  1.0
  P  P34  1  0.753  0.757  0.545  1.0
  P  P35  1  0.955  0.257  0.747  1.0
  Si  Si36  1  0.453  0.755  0.961  1.0
  Si  Si37  1  0.036  0.757  0.246  1.0
  Si  Si38  1  0.539  0.255  0.047  1.0
  Si  Si39  1  0.254  0.257  0.464  1.0
  Sn  Sn40  1  0.350  0.948  0.648  1.0
  Sn  Sn41  1  0.852  0.448  0.150  1.0
[/CIF]
.