NaRb2Nb6P3O24 crystallizes in the monoclinic C2 space group. Rb(1) is bonded in a 8-coordinate geometry to one O(10), one O(2), one O(3), one O(4), one O(5), one O(6), one O(8), and one O(9) atom. Na(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(13), and two equivalent O(3) atoms. There are three inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to one O(13), one O(2), one O(4), one O(6), one O(7), and one O(8) atom to form NbO6 octahedra that share corners with two equivalent Nb(2)O6 octahedra, corners with two equivalent Nb(3)O6 octahedra, and corners with two equivalent P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 4-35°. In the second Nb site, Nb(2) is bonded to one O(10), one O(3), one O(5), one O(6), one O(7), and one O(9) atom to form NbO6 octahedra that share  a cornercorner with one Nb(2)O6 octahedra,  a cornercorner with one Nb(3)O6 octahedra, corners with two equivalent Nb(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 4-36°. In the third Nb site, Nb(3) is bonded to one O(1), one O(11), one O(12), one O(2), one O(8), and one O(9) atom to form NbO6 octahedra that share  a cornercorner with one Nb(2)O6 octahedra,  a cornercorner with one Nb(3)O6 octahedra, corners with two equivalent Nb(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 5-36°. There are two inequivalent P sites. In the first P site, P(1) is bonded to two equivalent O(1) and two equivalent O(5) atoms to form PO4 tetrahedra that share corners with two equivalent Nb(2)O6 octahedra and corners with two equivalent Nb(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 39-41°. In the second P site, P(2) is bonded to one O(12), one O(13), one O(3), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Nb(2)O6 octahedra,  a cornercorner with one Nb(3)O6 octahedra, and corners with two equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 39-41°. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Na(1), one Nb(3), and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one Nb(1), and one Nb(3) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Rb(1), one Na(1), one Nb(2), and one P(2) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Rb(1), one Nb(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Rb(1), one Nb(2), and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one Nb(1), and one Nb(2) atom. In the seventh O site, O(7) is bonded in a linear geometry to one Nb(1) and one Nb(2) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Rb(1), one Nb(1), and one Nb(3) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one Nb(2), and one Nb(3) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to two equivalent Rb(1) and two equivalent Nb(2) atoms. In the eleventh O site, O(11) is bonded in a linear geometry to two equivalent Nb(3) atoms. In the twelfth O site, O(12) is bonded in a distorted bent 150 degrees geometry to one Nb(3) and one P(2) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one Na(1), one Nb(1), and one P(2) atom.
NaRb2Nb6P3O24 crystallizes in the monoclinic C2 space group. Rb(1) is bonded in a 8-coordinate geometry to one O(10), one O(2), one O(3), one O(4), one O(5), one O(6), one O(8), and one O(9) atom. The Rb(1)-O(10) bond length is 3.41 Å. The Rb(1)-O(2) bond length is 3.16 Å. The Rb(1)-O(3) bond length is 3.30 Å. The Rb(1)-O(4) bond length is 3.31 Å. The Rb(1)-O(5) bond length is 3.10 Å. The Rb(1)-O(6) bond length is 3.15 Å. The Rb(1)-O(8) bond length is 3.38 Å. The Rb(1)-O(9) bond length is 3.24 Å. Na(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(13), and two equivalent O(3) atoms. Both Na(1)-O(1) bond lengths are 2.49 Å. Both Na(1)-O(13) bond lengths are 2.48 Å. Both Na(1)-O(3) bond lengths are 2.48 Å. There are three inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to one O(13), one O(2), one O(4), one O(6), one O(7), and one O(8) atom to form NbO6 octahedra that share corners with two equivalent Nb(2)O6 octahedra, corners with two equivalent Nb(3)O6 octahedra, and corners with two equivalent P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 4-35°. The Nb(1)-O(13) bond length is 2.13 Å. The Nb(1)-O(2) bond length is 1.97 Å. The Nb(1)-O(4) bond length is 2.12 Å. The Nb(1)-O(6) bond length is 1.88 Å. The Nb(1)-O(7) bond length is 1.94 Å. The Nb(1)-O(8) bond length is 2.06 Å. In the second Nb site, Nb(2) is bonded to one O(10), one O(3), one O(5), one O(6), one O(7), and one O(9) atom to form NbO6 octahedra that share  a cornercorner with one Nb(2)O6 octahedra,  a cornercorner with one Nb(3)O6 octahedra, corners with two equivalent Nb(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 4-36°. The Nb(2)-O(10) bond length is 1.98 Å. The Nb(2)-O(3) bond length is 2.16 Å. The Nb(2)-O(5) bond length is 2.13 Å. The Nb(2)-O(6) bond length is 2.05 Å. The Nb(2)-O(7) bond length is 1.92 Å. The Nb(2)-O(9) bond length is 1.88 Å. In the third Nb site, Nb(3) is bonded to one O(1), one O(11), one O(12), one O(2), one O(8), and one O(9) atom to form NbO6 octahedra that share  a cornercorner with one Nb(2)O6 octahedra,  a cornercorner with one Nb(3)O6 octahedra, corners with two equivalent Nb(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 5-36°. The Nb(3)-O(1) bond length is 2.14 Å. The Nb(3)-O(11) bond length is 1.93 Å. The Nb(3)-O(12) bond length is 2.13 Å. The Nb(3)-O(2) bond length is 1.97 Å. The Nb(3)-O(8) bond length is 1.88 Å. The Nb(3)-O(9) bond length is 2.07 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to two equivalent O(1) and two equivalent O(5) atoms to form PO4 tetrahedra that share corners with two equivalent Nb(2)O6 octahedra and corners with two equivalent Nb(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 39-41°. Both P(1)-O(1) bond lengths are 1.56 Å. Both P(1)-O(5) bond lengths are 1.54 Å. In the second P site, P(2) is bonded to one O(12), one O(13), one O(3), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Nb(2)O6 octahedra,  a cornercorner with one Nb(3)O6 octahedra, and corners with two equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 39-41°. The P(2)-O(12) bond length is 1.54 Å. The P(2)-O(13) bond length is 1.56 Å. The P(2)-O(3) bond length is 1.56 Å. The P(2)-O(4) bond length is 1.54 Å. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Na(1), one Nb(3), and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one Nb(1), and one Nb(3) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Rb(1), one Na(1), one Nb(2), and one P(2) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Rb(1), one Nb(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Rb(1), one Nb(2), and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one Nb(1), and one Nb(2) atom. In the seventh O site, O(7) is bonded in a linear geometry to one Nb(1) and one Nb(2) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Rb(1), one Nb(1), and one Nb(3) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one Nb(2), and one Nb(3) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to two equivalent Rb(1) and two equivalent Nb(2) atoms. In the eleventh O site, O(11) is bonded in a linear geometry to two equivalent Nb(3) atoms. In the twelfth O site, O(12) is bonded in a distorted bent 150 degrees geometry to one Nb(3) and one P(2) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one Na(1), one Nb(1), and one P(2) atom.