Na6TaGa3Si2(PO6)4 crystallizes in the triclinic P1 space group. There are six inequivalent Na sites. In the first Na site, Na(1) is bonded in a distorted hexagonal planar geometry to one O(1), one O(11), one O(21), one O(23), one O(3), and one O(9) atom. In the second Na site, Na(2) is bonded in a distorted hexagonal planar geometry to one O(10), one O(12), one O(2), one O(22), one O(24), and one O(4) atom. In the third Na site, Na(3) is bonded in a 8-coordinate geometry to one O(1), one O(13), one O(14), one O(19), one O(2), one O(20), one O(21), and one O(22) atom. In the fourth Na site, Na(4) is bonded in a 7-coordinate geometry to one O(15), one O(17), one O(18), one O(23), one O(24), one O(3), and one O(4) atom. In the fifth Na site, Na(5) is bonded in a 7-coordinate geometry to one O(11), one O(12), one O(13), one O(24), one O(3), one O(6), and one O(7) atom. In the sixth Na site, Na(6) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(15), one O(22), one O(5), and one O(9) atom. Ta(1) is bonded to one O(10), one O(16), one O(19), one O(2), one O(22), and one O(8) atom to form TaO6 octahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(1), one O(15), one O(20), one O(21), one O(7), and one O(9) atom to form GaO6 octahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. In the second Ga site, Ga(2) is bonded to one O(11), one O(13), one O(18), one O(23), one O(3), and one O(5) atom to form GaO6 octahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. In the third Ga site, Ga(3) is bonded to one O(12), one O(14), one O(17), one O(24), one O(4), and one O(6) atom to form GaO6 octahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(13), one O(17), one O(2), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Ta(1)O6 octahedra,  a cornercorner with one Ga(1)O6 octahedra,  a cornercorner with one Ga(2)O6 octahedra, and  a cornercorner with one Ga(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 32-38°. In the second Si site, Si(2) is bonded to one O(11), one O(15), one O(19), and one O(4) atom to form SiO4 tetrahedra that share  a cornercorner with one Ta(1)O6 octahedra,  a cornercorner with one Ga(1)O6 octahedra,  a cornercorner with one Ga(2)O6 octahedra, and  a cornercorner with one Ga(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-43°. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(21), one O(22), one O(5), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Ta(1)O6 octahedra,  a cornercorner with one Ga(1)O6 octahedra,  a cornercorner with one Ga(2)O6 octahedra, and  a cornercorner with one Ga(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-37°. In the second P site, P(2) is bonded to one O(23), one O(24), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Ta(1)O6 octahedra,  a cornercorner with one Ga(1)O6 octahedra,  a cornercorner with one Ga(2)O6 octahedra, and  a cornercorner with one Ga(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 22-39°. In the third P site, P(3) is bonded to one O(1), one O(10), one O(14), and one O(18) atom to form PO4 tetrahedra that share  a cornercorner with one Ta(1)O6 octahedra,  a cornercorner with one Ga(1)O6 octahedra,  a cornercorner with one Ga(2)O6 octahedra, and  a cornercorner with one Ga(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 22-38°. In the fourth P site, P(4) is bonded to one O(12), one O(16), one O(20), and one O(3) atom to form PO4 tetrahedra that share  a cornercorner with one Ta(1)O6 octahedra,  a cornercorner with one Ga(1)O6 octahedra,  a cornercorner with one Ga(2)O6 octahedra, and  a cornercorner with one Ga(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 15-42°. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Na(1), one Na(3), one Na(6), one Ga(1), and one P(3) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Na(2), one Na(3), one Ta(1), and one Si(1) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Na(1), one Na(4), one Na(5), one Ga(2), and one P(4) atom. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Na(2), one Na(4), one Ga(3), and one Si(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Na(6), one Ga(2), and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Na(5), one Ga(3), and one P(1) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Na(5), one Ga(1), and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one Ta(1) and one P(2) atom. In the ninth O site, O(9) is bonded to one Na(1), one Na(6), one Ga(1), and one Si(1) atom to form distorted corner-sharing ONa2GaSi trigonal pyramids. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Na(2), one Na(6), one Ta(1), and one P(3) atom. In the eleventh O site, O(11) is bonded to one Na(1), one Na(5), one Ga(2), and one Si(2) atom to form distorted corner-sharing ONa2GaSi trigonal pyramids. In the twelfth O site, O(12) is bonded in a distorted rectangular see-saw-like geometry to one Na(2), one Na(5), one Ga(3), and one P(4) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one Na(3), one Na(5), one Ga(2), and one Si(1) atom. In the fourteenth O site, O(14) is bonded in a distorted bent 150 degrees geometry to one Na(3), one Ga(3), and one P(3) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Na(4), one Na(6), one Ga(1), and one Si(2) atom. In the sixteenth O site, O(16) is bonded in a distorted linear geometry to one Ta(1) and one P(4) atom. In the seventeenth O site, O(17) is bonded in a 2-coordinate geometry to one Na(4), one Ga(3), and one Si(1) atom. In the eighteenth O site, O(18) is bonded in a 3-coordinate geometry to one Na(4), one Ga(2), and one P(3) atom. In the nineteenth O site, O(19) is bonded in a distorted bent 150 degrees geometry to one Na(3), one Ta(1), and one Si(2) atom. In the twentieth O site, O(20) is bonded in a 3-coordinate geometry to one Na(3), one Ga(1), and one P(4) atom. In the twenty-first O site, O(21) is bonded in a distorted rectangular see-saw-like geometry to one Na(1), one Na(3), one Ga(1), and one P(1) atom. In the twenty-second O site, O(22) is bonded in a 5-coordinate geometry to one Na(2), one Na(3), one Na(6), one Ta(1), and one P(1) atom. In the twenty-third O site, O(23) is bonded in a distorted rectangular see-saw-like geometry to one Na(1), one Na(4), one Ga(2), and one P(2) atom. In the twenty-fourth O site, O(24) is bonded in a 5-coordinate geometry to one Na(2), one Na(4), one Na(5), one Ga(3), and one P(2) atom.
Na6TaGa3Si2(PO6)4 crystallizes in the triclinic P1 space group. There are six inequivalent Na sites. In the first Na site, Na(1) is bonded in a distorted hexagonal planar geometry to one O(1), one O(11), one O(21), one O(23), one O(3), and one O(9) atom. The Na(1)-O(1) bond length is 2.48 Å. The Na(1)-O(11) bond length is 2.39 Å. The Na(1)-O(21) bond length is 2.48 Å. The Na(1)-O(23) bond length is 2.47 Å. The Na(1)-O(3) bond length is 2.46 Å. The Na(1)-O(9) bond length is 2.39 Å. In the second Na site, Na(2) is bonded in a distorted hexagonal planar geometry to one O(10), one O(12), one O(2), one O(22), one O(24), and one O(4) atom. The Na(2)-O(10) bond length is 2.53 Å. The Na(2)-O(12) bond length is 2.35 Å. The Na(2)-O(2) bond length is 2.55 Å. The Na(2)-O(22) bond length is 2.59 Å. The Na(2)-O(24) bond length is 2.38 Å. The Na(2)-O(4) bond length is 2.34 Å. In the third Na site, Na(3) is bonded in a 8-coordinate geometry to one O(1), one O(13), one O(14), one O(19), one O(2), one O(20), one O(21), and one O(22) atom. The Na(3)-O(1) bond length is 2.33 Å. The Na(3)-O(13) bond length is 2.67 Å. The Na(3)-O(14) bond length is 2.83 Å. The Na(3)-O(19) bond length is 2.74 Å. The Na(3)-O(2) bond length is 2.44 Å. The Na(3)-O(20) bond length is 2.44 Å. The Na(3)-O(21) bond length is 2.52 Å. The Na(3)-O(22) bond length is 2.73 Å. In the fourth Na site, Na(4) is bonded in a 7-coordinate geometry to one O(15), one O(17), one O(18), one O(23), one O(24), one O(3), and one O(4) atom. The Na(4)-O(15) bond length is 2.81 Å. The Na(4)-O(17) bond length is 2.57 Å. The Na(4)-O(18) bond length is 2.47 Å. The Na(4)-O(23) bond length is 2.48 Å. The Na(4)-O(24) bond length is 2.58 Å. The Na(4)-O(3) bond length is 2.34 Å. The Na(4)-O(4) bond length is 2.37 Å. In the fifth Na site, Na(5) is bonded in a 7-coordinate geometry to one O(11), one O(12), one O(13), one O(24), one O(3), one O(6), and one O(7) atom. The Na(5)-O(11) bond length is 2.37 Å. The Na(5)-O(12) bond length is 2.50 Å. The Na(5)-O(13) bond length is 2.39 Å. The Na(5)-O(24) bond length is 2.37 Å. The Na(5)-O(3) bond length is 2.68 Å. The Na(5)-O(6) bond length is 2.81 Å. The Na(5)-O(7) bond length is 2.75 Å. In the sixth Na site, Na(6) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(15), one O(22), one O(5), and one O(9) atom. The Na(6)-O(1) bond length is 2.63 Å. The Na(6)-O(10) bond length is 2.57 Å. The Na(6)-O(15) bond length is 2.35 Å. The Na(6)-O(22) bond length is 2.40 Å. The Na(6)-O(5) bond length is 2.65 Å. The Na(6)-O(9) bond length is 2.37 Å. Ta(1) is bonded to one O(10), one O(16), one O(19), one O(2), one O(22), and one O(8) atom to form TaO6 octahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The Ta(1)-O(10) bond length is 2.06 Å. The Ta(1)-O(16) bond length is 1.94 Å. The Ta(1)-O(19) bond length is 1.92 Å. The Ta(1)-O(2) bond length is 1.96 Å. The Ta(1)-O(22) bond length is 2.05 Å. The Ta(1)-O(8) bond length is 2.01 Å. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(1), one O(15), one O(20), one O(21), one O(7), and one O(9) atom to form GaO6 octahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The Ga(1)-O(1) bond length is 2.13 Å. The Ga(1)-O(15) bond length is 1.93 Å. The Ga(1)-O(20) bond length is 2.03 Å. The Ga(1)-O(21) bond length is 2.06 Å. The Ga(1)-O(7) bond length is 1.94 Å. The Ga(1)-O(9) bond length is 1.94 Å. In the second Ga site, Ga(2) is bonded to one O(11), one O(13), one O(18), one O(23), one O(3), and one O(5) atom to form GaO6 octahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The Ga(2)-O(11) bond length is 1.96 Å. The Ga(2)-O(13) bond length is 1.94 Å. The Ga(2)-O(18) bond length is 2.03 Å. The Ga(2)-O(23) bond length is 2.03 Å. The Ga(2)-O(3) bond length is 2.18 Å. The Ga(2)-O(5) bond length is 1.96 Å. In the third Ga site, Ga(3) is bonded to one O(12), one O(14), one O(17), one O(24), one O(4), and one O(6) atom to form GaO6 octahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The Ga(3)-O(12) bond length is 2.10 Å. The Ga(3)-O(14) bond length is 1.94 Å. The Ga(3)-O(17) bond length is 1.92 Å. The Ga(3)-O(24) bond length is 2.13 Å. The Ga(3)-O(4) bond length is 1.96 Å. The Ga(3)-O(6) bond length is 2.00 Å. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(13), one O(17), one O(2), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Ta(1)O6 octahedra,  a cornercorner with one Ga(1)O6 octahedra,  a cornercorner with one Ga(2)O6 octahedra, and  a cornercorner with one Ga(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 32-38°. The Si(1)-O(13) bond length is 1.64 Å. The Si(1)-O(17) bond length is 1.62 Å. The Si(1)-O(2) bond length is 1.69 Å. The Si(1)-O(9) bond length is 1.62 Å. In the second Si site, Si(2) is bonded to one O(11), one O(15), one O(19), and one O(4) atom to form SiO4 tetrahedra that share  a cornercorner with one Ta(1)O6 octahedra,  a cornercorner with one Ga(1)O6 octahedra,  a cornercorner with one Ga(2)O6 octahedra, and  a cornercorner with one Ga(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-43°. The Si(2)-O(11) bond length is 1.62 Å. The Si(2)-O(15) bond length is 1.63 Å. The Si(2)-O(19) bond length is 1.70 Å. The Si(2)-O(4) bond length is 1.62 Å. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(21), one O(22), one O(5), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Ta(1)O6 octahedra,  a cornercorner with one Ga(1)O6 octahedra,  a cornercorner with one Ga(2)O6 octahedra, and  a cornercorner with one Ga(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-37°. The P(1)-O(21) bond length is 1.54 Å. The P(1)-O(22) bond length is 1.61 Å. The P(1)-O(5) bond length is 1.54 Å. The P(1)-O(6) bond length is 1.54 Å. In the second P site, P(2) is bonded to one O(23), one O(24), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Ta(1)O6 octahedra,  a cornercorner with one Ga(1)O6 octahedra,  a cornercorner with one Ga(2)O6 octahedra, and  a cornercorner with one Ga(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 22-39°. The P(2)-O(23) bond length is 1.54 Å. The P(2)-O(24) bond length is 1.55 Å. The P(2)-O(7) bond length is 1.53 Å. The P(2)-O(8) bond length is 1.57 Å. In the third P site, P(3) is bonded to one O(1), one O(10), one O(14), and one O(18) atom to form PO4 tetrahedra that share  a cornercorner with one Ta(1)O6 octahedra,  a cornercorner with one Ga(1)O6 octahedra,  a cornercorner with one Ga(2)O6 octahedra, and  a cornercorner with one Ga(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 22-38°. The P(3)-O(1) bond length is 1.55 Å. The P(3)-O(10) bond length is 1.58 Å. The P(3)-O(14) bond length is 1.53 Å. The P(3)-O(18) bond length is 1.54 Å. In the fourth P site, P(4) is bonded to one O(12), one O(16), one O(20), and one O(3) atom to form PO4 tetrahedra that share  a cornercorner with one Ta(1)O6 octahedra,  a cornercorner with one Ga(1)O6 octahedra,  a cornercorner with one Ga(2)O6 octahedra, and  a cornercorner with one Ga(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 15-42°. The P(4)-O(12) bond length is 1.53 Å. The P(4)-O(16) bond length is 1.59 Å. The P(4)-O(20) bond length is 1.54 Å. The P(4)-O(3) bond length is 1.55 Å. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Na(1), one Na(3), one Na(6), one Ga(1), and one P(3) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Na(2), one Na(3), one Ta(1), and one Si(1) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Na(1), one Na(4), one Na(5), one Ga(2), and one P(4) atom. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Na(2), one Na(4), one Ga(3), and one Si(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Na(6), one Ga(2), and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Na(5), one Ga(3), and one P(1) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Na(5), one Ga(1), and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one Ta(1) and one P(2) atom. In the ninth O site, O(9) is bonded to one Na(1), one Na(6), one Ga(1), and one Si(1) atom to form distorted corner-sharing ONa2GaSi trigonal pyramids. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Na(2), one Na(6), one Ta(1), and one P(3) atom. In the eleventh O site, O(11) is bonded to one Na(1), one Na(5), one Ga(2), and one Si(2) atom to form distorted corner-sharing ONa2GaSi trigonal pyramids. In the twelfth O site, O(12) is bonded in a distorted rectangular see-saw-like geometry to one Na(2), one Na(5), one Ga(3), and one P(4) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one Na(3), one Na(5), one Ga(2), and one Si(1) atom. In the fourteenth O site, O(14) is bonded in a distorted bent 150 degrees geometry to one Na(3), one Ga(3), and one P(3) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Na(4), one Na(6), one Ga(1), and one Si(2) atom. In the sixteenth O site, O(16) is bonded in a distorted linear geometry to one Ta(1) and one P(4) atom. In the seventeenth O site, O(17) is bonded in a 2-coordinate geometry to one Na(4), one Ga(3), and one Si(1) atom. In the eighteenth O site, O(18) is bonded in a 3-coordinate geometry to one Na(4), one Ga(2), and one P(3) atom. In the nineteenth O site, O(19) is bonded in a distorted bent 150 degrees geometry to one Na(3), one Ta(1), and one Si(2) atom. In the twentieth O site, O(20) is bonded in a 3-coordinate geometry to one Na(3), one Ga(1), and one P(4) atom. In the twenty-first O site, O(21) is bonded in a distorted rectangular see-saw-like geometry to one Na(1), one Na(3), one Ga(1), and one P(1) atom. In the twenty-second O site, O(22) is bonded in a 5-coordinate geometry to one Na(2), one Na(3), one Na(6), one Ta(1), and one P(1) atom. In the twenty-third O site, O(23) is bonded in a distorted rectangular see-saw-like geometry to one Na(1), one Na(4), one Ga(2), and one P(2) atom. In the twenty-fourth O site, O(24) is bonded in a 5-coordinate geometry to one Na(2), one Na(4), one Na(5), one Ga(3), and one P(2) atom.