The compound described by Na4TiGaSi2PO12 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. Ti(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 TiO6 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. Ga(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 GaO6 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 Ti(1)O6 octahedra and corners with two equivalent Ga(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-39°. 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 Ti(1)O6 octahedra and corners with two equivalent Ga(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-37°. 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 Ti(1)O6 octahedra and corners with two equivalent Ga(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-36°. 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 Ga(1), and one P(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Na(3), one Ga(1), and one Si(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Na(1), one Na(2), one Ga(1), and one Si(2) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Na(2), one Na(3), one Ti(1), and one Si(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to two equivalent Na(1), one Ti(1), and one Si(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Na(2), one Na(3), one Ti(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 Ga(1), and one Si(2) atom to form distorted ONa3GaSi trigonal bipyramids that share  a cornercorner with one O(12)Na3TiSi trigonal bipyramid, corners with two equivalent O(11)Na3TiSi trigonal bipyramids,  an edgeedge with one O(12)Na3TiSi trigonal bipyramid, and  a faceface with one O(8)Na3GaSi trigonal bipyramid. In the eighth O site, O(8) is bonded to one Na(2), one Na(3), one Na(4), one Ga(1), and one Si(1) atom to form distorted ONa3GaSi trigonal bipyramids that share  a cornercorner with one O(11)Na3TiSi trigonal bipyramid, corners with three equivalent O(12)Na3TiSi trigonal bipyramids,  an edgeedge with one O(11)Na3TiSi trigonal bipyramid, and  a faceface with one O(7)Na3GaSi 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 Ga(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 Ti(1), and one P(1) atom. In the eleventh O site, O(11) is bonded to one Na(1), one Na(2), one Na(4), one Ti(1), and one Si(1) atom to form distorted ONa3TiSi trigonal bipyramids that share  a cornercorner with one O(8)Na3GaSi trigonal bipyramid, corners with two equivalent O(7)Na3GaSi trigonal bipyramids,  an edgeedge with one O(8)Na3GaSi trigonal bipyramid, and  a faceface with one O(12)Na3TiSi trigonal bipyramid. In the twelfth O site, O(12) is bonded to one Na(2), one Na(3), one Na(4), one Ti(1), and one Si(2) atom to form distorted ONa3TiSi trigonal bipyramids that share  a cornercorner with one O(7)Na3GaSi trigonal bipyramid, corners with three equivalent O(8)Na3GaSi trigonal bipyramids,  an edgeedge with one O(7)Na3GaSi trigonal bipyramid, and  a faceface with one O(11)Na3TiSi trigonal bipyramid. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na4TiGaSi2PO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.927
_cell_length_b   8.935
_cell_length_c   8.935
_cell_angle_alpha   60.372
_cell_angle_beta   60.116
_cell_angle_gamma   60.116
_symmetry_Int_Tables_number   1
_cell_volume   506.172
_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
  Ga  Ga0  1  0.052  0.641  0.661  1.0
  Ga  Ga1  1  0.552  0.161  0.141  1.0
  Na  Na2  1  0.751  0.754  0.113  1.0
  Na  Na3  1  0.741  0.122  0.382  1.0
  Na  Na4  1  0.748  0.377  0.758  1.0
  Na  Na5  1  0.241  0.882  0.622  1.0
  Na  Na6  1  0.251  0.613  0.254  1.0
  Na  Na7  1  0.248  0.258  0.877  1.0
  Na  Na8  1  0.494  0.497  0.505  1.0
  Na  Na9  1  0.994  0.005  0.997  1.0
  O  O10  1  0.925  0.726  0.482  1.0
  O  O11  1  0.931  0.476  0.860  1.0
  O  O12  1  0.933  0.860  0.722  1.0
  O  O13  1  0.431  0.360  0.976  1.0
  O  O14  1  0.425  0.982  0.226  1.0
  O  O15  1  0.433  0.222  0.360  1.0
  O  O16  1  0.073  0.275  0.507  1.0
  O  O17  1  0.073  0.506  0.145  1.0
  O  O18  1  0.081  0.134  0.276  1.0
  O  O19  1  0.573  0.645  0.006  1.0
  O  O20  1  0.573  0.007  0.775  1.0
  O  O21  1  0.581  0.776  0.634  1.0
  O  O22  1  0.234  0.432  0.560  1.0
  O  O23  1  0.236  0.571  0.768  1.0
  O  O24  1  0.233  0.784  0.414  1.0
  O  O25  1  0.736  0.268  0.071  1.0
  O  O26  1  0.734  0.060  0.932  1.0
  O  O27  1  0.733  0.914  0.284  1.0
  O  O28  1  0.764  0.578  0.443  1.0
  O  O29  1  0.765  0.438  0.228  1.0
  O  O30  1  0.764  0.227  0.572  1.0
  O  O31  1  0.265  0.728  0.938  1.0
  O  O32  1  0.264  0.943  0.078  1.0
  O  O33  1  0.264  0.072  0.727  1.0
  P  P34  1  0.753  0.750  0.460  1.0
  P  P35  1  0.253  0.960  0.250  1.0
  Si  Si36  1  0.752  0.456  0.042  1.0
  Si  Si37  1  0.753  0.039  0.751  1.0
  Si  Si38  1  0.252  0.542  0.956  1.0
  Si  Si39  1  0.253  0.251  0.539  1.0
  Ti  Ti40  1  0.943  0.353  0.354  1.0
  Ti  Ti41  1  0.443  0.854  0.853  1.0
[/CIF]
.
The compound described by Na4TiGaSi2PO12 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. Ti(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 TiO6 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. Ga(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 GaO6 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 Ti(1)O6 octahedra and corners with two equivalent Ga(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-39°. 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 Ti(1)O6 octahedra and corners with two equivalent Ga(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-37°. 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 Ti(1)O6 octahedra and corners with two equivalent Ga(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-36°. 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 Ga(1), and one P(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Na(3), one Ga(1), and one Si(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Na(1), one Na(2), one Ga(1), and one Si(2) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Na(2), one Na(3), one Ti(1), and one Si(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to two equivalent Na(1), one Ti(1), and one Si(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Na(2), one Na(3), one Ti(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 Ga(1), and one Si(2) atom to form distorted ONa3GaSi trigonal bipyramids that share  a cornercorner with one O(12)Na3TiSi trigonal bipyramid, corners with two equivalent O(11)Na3TiSi trigonal bipyramids,  an edgeedge with one O(12)Na3TiSi trigonal bipyramid, and  a faceface with one O(8)Na3GaSi trigonal bipyramid. In the eighth O site, O(8) is bonded to one Na(2), one Na(3), one Na(4), one Ga(1), and one Si(1) atom to form distorted ONa3GaSi trigonal bipyramids that share  a cornercorner with one O(11)Na3TiSi trigonal bipyramid, corners with three equivalent O(12)Na3TiSi trigonal bipyramids,  an edgeedge with one O(11)Na3TiSi trigonal bipyramid, and  a faceface with one O(7)Na3GaSi 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 Ga(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 Ti(1), and one P(1) atom. In the eleventh O site, O(11) is bonded to one Na(1), one Na(2), one Na(4), one Ti(1), and one Si(1) atom to form distorted ONa3TiSi trigonal bipyramids that share  a cornercorner with one O(8)Na3GaSi trigonal bipyramid, corners with two equivalent O(7)Na3GaSi trigonal bipyramids,  an edgeedge with one O(8)Na3GaSi trigonal bipyramid, and  a faceface with one O(12)Na3TiSi trigonal bipyramid. In the twelfth O site, O(12) is bonded to one Na(2), one Na(3), one Na(4), one Ti(1), and one Si(2) atom to form distorted ONa3TiSi trigonal bipyramids that share  a cornercorner with one O(7)Na3GaSi trigonal bipyramid, corners with three equivalent O(8)Na3GaSi trigonal bipyramids,  an edgeedge with one O(7)Na3GaSi trigonal bipyramid, and  a faceface with one O(11)Na3TiSi trigonal bipyramid. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na4TiGaSi2PO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.927
_cell_length_b   8.935
_cell_length_c   8.935
_cell_angle_alpha   60.372
_cell_angle_beta   60.116
_cell_angle_gamma   60.116
_symmetry_Int_Tables_number   1
_cell_volume   506.172
_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
  Ga  Ga0  1  0.052  0.641  0.661  1.0
  Ga  Ga1  1  0.552  0.161  0.141  1.0
  Na  Na2  1  0.751  0.754  0.113  1.0
  Na  Na3  1  0.741  0.122  0.382  1.0
  Na  Na4  1  0.748  0.377  0.758  1.0
  Na  Na5  1  0.241  0.882  0.622  1.0
  Na  Na6  1  0.251  0.613  0.254  1.0
  Na  Na7  1  0.248  0.258  0.877  1.0
  Na  Na8  1  0.494  0.497  0.505  1.0
  Na  Na9  1  0.994  0.005  0.997  1.0
  O  O10  1  0.925  0.726  0.482  1.0
  O  O11  1  0.931  0.476  0.860  1.0
  O  O12  1  0.933  0.860  0.722  1.0
  O  O13  1  0.431  0.360  0.976  1.0
  O  O14  1  0.425  0.982  0.226  1.0
  O  O15  1  0.433  0.222  0.360  1.0
  O  O16  1  0.073  0.275  0.507  1.0
  O  O17  1  0.073  0.506  0.145  1.0
  O  O18  1  0.081  0.134  0.276  1.0
  O  O19  1  0.573  0.645  0.006  1.0
  O  O20  1  0.573  0.007  0.775  1.0
  O  O21  1  0.581  0.776  0.634  1.0
  O  O22  1  0.234  0.432  0.560  1.0
  O  O23  1  0.236  0.571  0.768  1.0
  O  O24  1  0.233  0.784  0.414  1.0
  O  O25  1  0.736  0.268  0.071  1.0
  O  O26  1  0.734  0.060  0.932  1.0
  O  O27  1  0.733  0.914  0.284  1.0
  O  O28  1  0.764  0.578  0.443  1.0
  O  O29  1  0.765  0.438  0.228  1.0
  O  O30  1  0.764  0.227  0.572  1.0
  O  O31  1  0.265  0.728  0.938  1.0
  O  O32  1  0.264  0.943  0.078  1.0
  O  O33  1  0.264  0.072  0.727  1.0
  P  P34  1  0.753  0.750  0.460  1.0
  P  P35  1  0.253  0.960  0.250  1.0
  Si  Si36  1  0.752  0.456  0.042  1.0
  Si  Si37  1  0.753  0.039  0.751  1.0
  Si  Si38  1  0.252  0.542  0.956  1.0
  Si  Si39  1  0.253  0.251  0.539  1.0
  Ti  Ti40  1  0.943  0.353  0.354  1.0
  Ti  Ti41  1  0.443  0.854  0.853  1.0
[/CIF]
.