K5Na3Nb7WO24 is (Cubic) Perovskite-derived structured and crystallizes in the monoclinic Cm space group. There are four inequivalent K sites. In the first K site, K(1) is bonded to one O(13), one O(9), two equivalent O(1), two equivalent O(11), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form KO12 cuboctahedra that share corners with four equivalent K(3)O12 cuboctahedra, corners with eight equivalent Na(2)O12 cuboctahedra, faces with two equivalent Na(1)O12 cuboctahedra, faces with four equivalent K(2)O12 cuboctahedra,  a faceface with one Nb(1)O6 octahedra,  a faceface with one Nb(4)O6 octahedra,  a faceface with one Nb(5)O6 octahedra,  a faceface with one W(1)O6 octahedra, faces with two equivalent Nb(2)O6 octahedra, and faces with two equivalent Nb(3)O6 octahedra. In the second K site, K(2) is bonded to one O(1), one O(13), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), one O(9), and two equivalent O(11) atoms to form KO12 cuboctahedra that share corners with four equivalent K(2)O12 cuboctahedra, corners with four equivalent K(4)O12 cuboctahedra, corners with four equivalent Na(1)O12 cuboctahedra, faces with two equivalent K(1)O12 cuboctahedra, faces with two equivalent K(3)O12 cuboctahedra, faces with two equivalent Na(2)O12 cuboctahedra,  a faceface with one Nb(1)O6 octahedra,  a faceface with one Nb(4)O6 octahedra,  a faceface with one Nb(5)O6 octahedra,  a faceface with one W(1)O6 octahedra, faces with two equivalent Nb(2)O6 octahedra, and faces with two equivalent Nb(3)O6 octahedra. In the third K site, K(3) is bonded to one O(13), one O(9), two equivalent O(11), two equivalent O(5), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms to form KO12 cuboctahedra that share corners with four equivalent K(1)O12 cuboctahedra, corners with eight equivalent Na(2)O12 cuboctahedra, faces with two equivalent K(4)O12 cuboctahedra, faces with four equivalent K(2)O12 cuboctahedra,  a faceface with one Nb(1)O6 octahedra,  a faceface with one Nb(4)O6 octahedra,  a faceface with one Nb(5)O6 octahedra,  a faceface with one W(1)O6 octahedra, faces with two equivalent Nb(2)O6 octahedra, and faces with two equivalent Nb(3)O6 octahedra. In the fourth K site, K(4) is bonded to one O(10), one O(14), two equivalent O(12), two equivalent O(5), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms to form KO12 cuboctahedra that share corners with four equivalent Na(1)O12 cuboctahedra, corners with eight equivalent K(2)O12 cuboctahedra, faces with two equivalent K(3)O12 cuboctahedra, faces with four equivalent Na(2)O12 cuboctahedra,  a faceface with one Nb(1)O6 octahedra,  a faceface with one Nb(4)O6 octahedra,  a faceface with one Nb(5)O6 octahedra,  a faceface with one W(1)O6 octahedra, faces with two equivalent Nb(2)O6 octahedra, and faces with two equivalent Nb(3)O6 octahedra. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to one O(10), one O(14), two equivalent O(1), two equivalent O(12), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form NaO12 cuboctahedra that share corners with four equivalent K(4)O12 cuboctahedra, corners with eight equivalent K(2)O12 cuboctahedra, faces with two equivalent K(1)O12 cuboctahedra, faces with four equivalent Na(2)O12 cuboctahedra,  a faceface with one Nb(1)O6 octahedra,  a faceface with one Nb(4)O6 octahedra,  a faceface with one Nb(5)O6 octahedra,  a faceface with one W(1)O6 octahedra, faces with two equivalent Nb(2)O6 octahedra, and faces with two equivalent Nb(3)O6 octahedra. In the second Na site, Na(2) is bonded to one O(1), one O(10), one O(14), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and two equivalent O(12) atoms to form NaO12 cuboctahedra that share corners with four equivalent K(1)O12 cuboctahedra, corners with four equivalent K(3)O12 cuboctahedra, corners with four equivalent Na(2)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, faces with two equivalent K(4)O12 cuboctahedra, faces with two equivalent Na(1)O12 cuboctahedra,  a faceface with one Nb(1)O6 octahedra,  a faceface with one Nb(4)O6 octahedra,  a faceface with one Nb(5)O6 octahedra,  a faceface with one W(1)O6 octahedra, faces with two equivalent Nb(2)O6 octahedra, and faces with two equivalent Nb(3)O6 octahedra. There are five inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to one O(10), one O(9), two equivalent O(2), and two equivalent O(6) atoms to form NbO6 octahedra that share corners with two equivalent W(1)O6 octahedra, corners with four equivalent Nb(3)O6 octahedra,  a faceface with one K(1)O12 cuboctahedra,  a faceface with one K(3)O12 cuboctahedra,  a faceface with one K(4)O12 cuboctahedra,  a faceface with one Na(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, and faces with two equivalent Na(2)O12 cuboctahedra. The corner-sharing octahedra are not tilted. In the second Nb site, Nb(2) is bonded to one O(1), one O(11), one O(12), one O(3), one O(5), and one O(7) atom to form NbO6 octahedra that share corners with two equivalent Nb(3)O6 octahedra, corners with two equivalent Nb(4)O6 octahedra, corners with two equivalent W(1)O6 octahedra,  a faceface with one K(1)O12 cuboctahedra,  a faceface with one K(3)O12 cuboctahedra,  a faceface with one K(4)O12 cuboctahedra,  a faceface with one Na(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, and faces with two equivalent Na(2)O12 cuboctahedra. The corner-sharing octahedra are not tilted. In the third Nb site, Nb(3) is bonded to one O(11), one O(12), one O(2), one O(4), one O(6), and one O(8) atom to form NbO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra, corners with two equivalent Nb(2)O6 octahedra, corners with two equivalent Nb(5)O6 octahedra,  a faceface with one K(1)O12 cuboctahedra,  a faceface with one K(3)O12 cuboctahedra,  a faceface with one K(4)O12 cuboctahedra,  a faceface with one Na(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, and faces with two equivalent Na(2)O12 cuboctahedra. The corner-sharing octahedra are not tilted. In the fourth Nb site, Nb(4) is bonded to one O(13), one O(14), two equivalent O(3), and two equivalent O(7) atoms to form NbO6 octahedra that share corners with two equivalent Nb(5)O6 octahedra, corners with four equivalent Nb(2)O6 octahedra,  a faceface with one K(1)O12 cuboctahedra,  a faceface with one K(3)O12 cuboctahedra,  a faceface with one K(4)O12 cuboctahedra,  a faceface with one Na(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, and faces with two equivalent Na(2)O12 cuboctahedra. The corner-sharing octahedra are not tilted. In the fifth Nb site, Nb(5) is bonded to one O(13), one O(14), two equivalent O(4), and two equivalent O(8) atoms to form NbO6 octahedra that share corners with two equivalent Nb(4)O6 octahedra, corners with four equivalent Nb(3)O6 octahedra,  a faceface with one K(1)O12 cuboctahedra,  a faceface with one K(3)O12 cuboctahedra,  a faceface with one K(4)O12 cuboctahedra,  a faceface with one Na(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, and faces with two equivalent Na(2)O12 cuboctahedra. The corner-sharing octahedra are not tilted. W(1) is bonded to one O(10), one O(9), two equivalent O(1), and two equivalent O(5) atoms to form WO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra, corners with four equivalent Nb(2)O6 octahedra,  a faceface with one K(1)O12 cuboctahedra,  a faceface with one K(3)O12 cuboctahedra,  a faceface with one K(4)O12 cuboctahedra,  a faceface with one Na(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, and faces with two equivalent Na(2)O12 cuboctahedra. The corner-sharing octahedra are not tilted. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded to one K(1), one K(2), one Na(1), one Na(2), one Nb(2), and one W(1) atom to form distorted OK2Na2NbW octahedra that share corners with two equivalent O(8)K3NaNb2 octahedra, corners with two equivalent O(5)K3NaNbW octahedra, corners with two equivalent O(11)K4Nb2 octahedra, corners with two equivalent O(13)K4Nb2 octahedra,  a faceface with one O(1)K2Na2NbW octahedra,  a faceface with one O(5)K3NaNbW octahedra,  a faceface with one O(11)K4Nb2 octahedra,  a faceface with one O(9)K4NbW octahedra, and  a faceface with one O(10)KNa3NbW octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the second O site, O(2) is bonded in a distorted linear geometry to one K(1), one K(2), one Na(1), one Na(2), one Nb(1), and one Nb(3) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one K(1), one K(2), one Na(1), one Na(2), one Nb(2), and one Nb(4) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to one K(1), one K(2), one Na(1), one Na(2), one Nb(3), and one Nb(5) atom. In the fifth O site, O(5) is bonded to one K(2), one K(3), one K(4), one Na(2), one Nb(2), and one W(1) atom to form distorted OK3NaNbW octahedra that share corners with two equivalent O(1)K2Na2NbW octahedra, corners with two equivalent O(11)K4Nb2 octahedra, corners with two equivalent O(13)K4Nb2 octahedra, corners with six equivalent O(8)K3NaNb2 octahedra,  a faceface with one O(1)K2Na2NbW octahedra,  a faceface with one O(5)K3NaNbW octahedra,  a faceface with one O(11)K4Nb2 octahedra,  a faceface with one O(9)K4NbW octahedra, and  a faceface with one O(10)KNa3NbW octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the sixth O site, O(6) is bonded in a distorted linear geometry to one K(2), one K(3), one K(4), one Na(2), one Nb(1), and one Nb(3) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to one K(2), one K(3), one K(4), one Na(2), one Nb(2), and one Nb(4) atom. In the eighth O site, O(8) is bonded to one K(2), one K(3), one K(4), one Na(2), one Nb(3), and one Nb(5) atom to form distorted OK3NaNb2 octahedra that share corners with two equivalent O(1)K2Na2NbW octahedra, corners with two equivalent O(11)K4Nb2 octahedra, corners with two equivalent O(9)K4NbW octahedra, corners with two equivalent O(10)KNa3NbW octahedra, corners with six equivalent O(5)K3NaNbW octahedra,  a faceface with one O(8)K3NaNb2 octahedra,  a faceface with one O(11)K4Nb2 octahedra, and  a faceface with one O(13)K4Nb2 octahedra. The corner-sharing octahedral tilt angles range from 1-60°. In the ninth O site, O(9) is bonded to one K(1), one K(3), two equivalent K(2), one Nb(1), and one W(1) atom to form distorted OK4NbW octahedra that share corners with two equivalent O(10)KNa3NbW octahedra, corners with four equivalent O(8)K3NaNb2 octahedra, corners with four equivalent O(13)K4Nb2 octahedra, edges with four equivalent O(11)K4Nb2 octahedra, faces with two equivalent O(1)K2Na2NbW octahedra, and faces with two equivalent O(5)K3NaNbW octahedra. The corner-sharing octahedral tilt angles range from 0-59°. In the tenth O site, O(10) is bonded to one K(4), one Na(1), two equivalent Na(2), one Nb(1), and one W(1) atom to form distorted OKNa3NbW octahedra that share corners with two equivalent O(9)K4NbW octahedra, corners with four equivalent O(8)K3NaNb2 octahedra, faces with two equivalent O(1)K2Na2NbW octahedra, and faces with two equivalent O(5)K3NaNbW octahedra. The corner-sharing octahedral tilt angles range from 0-59°. In the eleventh O site, O(11) is bonded to one K(1), one K(3), two equivalent K(2), one Nb(2), and one Nb(3) atom to form distorted OK4Nb2 octahedra that share corners with two equivalent O(1)K2Na2NbW octahedra, corners with two equivalent O(8)K3NaNb2 octahedra, corners with two equivalent O(5)K3NaNbW octahedra, corners with four equivalent O(11)K4Nb2 octahedra, edges with two equivalent O(13)K4Nb2 octahedra, edges with two equivalent O(9)K4NbW octahedra,  a faceface with one O(1)K2Na2NbW octahedra,  a faceface with one O(8)K3NaNb2 octahedra, and  a faceface with one O(5)K3NaNbW octahedra. The corner-sharing octahedral tilt angles range from 1-61°. In the twelfth O site, O(12) is bonded in a distorted linear geometry to one K(4), one Na(1), two equivalent Na(2), one Nb(2), and one Nb(3) atom. In the thirteenth O site, O(13) is bonded to one K(1), one K(3), two equivalent K(2), one Nb(4), and one Nb(5) atom to form distorted OK4Nb2 octahedra that share corners with four equivalent O(1)K2Na2NbW octahedra, corners with four equivalent O(5)K3NaNbW octahedra, corners with four equivalent O(9)K4NbW octahedra, edges with four equivalent O(11)K4Nb2 octahedra, and faces with two equivalent O(8)K3NaNb2 octahedra. The corner-sharing octahedral tilt angles range from 1-59°. In the fourteenth O site, O(14) is bonded in a distorted linear geometry to one K(4), one Na(1), two equivalent Na(2), one Nb(4), and one Nb(5) atom.
K5Na3Nb7WO24 is (Cubic) Perovskite-derived structured and crystallizes in the monoclinic Cm space group. There are four inequivalent K sites. In the first K site, K(1) is bonded to one O(13), one O(9), two equivalent O(1), two equivalent O(11), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form KO12 cuboctahedra that share corners with four equivalent K(3)O12 cuboctahedra, corners with eight equivalent Na(2)O12 cuboctahedra, faces with two equivalent Na(1)O12 cuboctahedra, faces with four equivalent K(2)O12 cuboctahedra,  a faceface with one Nb(1)O6 octahedra,  a faceface with one Nb(4)O6 octahedra,  a faceface with one Nb(5)O6 octahedra,  a faceface with one W(1)O6 octahedra, faces with two equivalent Nb(2)O6 octahedra, and faces with two equivalent Nb(3)O6 octahedra. The K(1)-O(13) bond length is 2.84 Å. The K(1)-O(9) bond length is 2.86 Å. Both K(1)-O(1) bond lengths are 2.87 Å. Both K(1)-O(11) bond lengths are 2.85 Å. Both K(1)-O(2) bond lengths are 2.86 Å. Both K(1)-O(3) bond lengths are 2.86 Å. Both K(1)-O(4) bond lengths are 2.86 Å. In the second K site, K(2) is bonded to one O(1), one O(13), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), one O(9), and two equivalent O(11) atoms to form KO12 cuboctahedra that share corners with four equivalent K(2)O12 cuboctahedra, corners with four equivalent K(4)O12 cuboctahedra, corners with four equivalent Na(1)O12 cuboctahedra, faces with two equivalent K(1)O12 cuboctahedra, faces with two equivalent K(3)O12 cuboctahedra, faces with two equivalent Na(2)O12 cuboctahedra,  a faceface with one Nb(1)O6 octahedra,  a faceface with one Nb(4)O6 octahedra,  a faceface with one Nb(5)O6 octahedra,  a faceface with one W(1)O6 octahedra, faces with two equivalent Nb(2)O6 octahedra, and faces with two equivalent Nb(3)O6 octahedra. The K(2)-O(1) bond length is 2.87 Å. The K(2)-O(13) bond length is 2.84 Å. The K(2)-O(2) bond length is 2.87 Å. The K(2)-O(3) bond length is 2.87 Å. The K(2)-O(4) bond length is 2.86 Å. The K(2)-O(5) bond length is 2.86 Å. The K(2)-O(6) bond length is 2.85 Å. The K(2)-O(7) bond length is 2.85 Å. The K(2)-O(8) bond length is 2.85 Å. The K(2)-O(9) bond length is 2.86 Å. Both K(2)-O(11) bond lengths are 2.85 Å. In the third K site, K(3) is bonded to one O(13), one O(9), two equivalent O(11), two equivalent O(5), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms to form KO12 cuboctahedra that share corners with four equivalent K(1)O12 cuboctahedra, corners with eight equivalent Na(2)O12 cuboctahedra, faces with two equivalent K(4)O12 cuboctahedra, faces with four equivalent K(2)O12 cuboctahedra,  a faceface with one Nb(1)O6 octahedra,  a faceface with one Nb(4)O6 octahedra,  a faceface with one Nb(5)O6 octahedra,  a faceface with one W(1)O6 octahedra, faces with two equivalent Nb(2)O6 octahedra, and faces with two equivalent Nb(3)O6 octahedra. The K(3)-O(13) bond length is 2.85 Å. The K(3)-O(9) bond length is 2.86 Å. Both K(3)-O(11) bond lengths are 2.85 Å. Both K(3)-O(5) bond lengths are 2.87 Å. Both K(3)-O(6) bond lengths are 2.87 Å. Both K(3)-O(7) bond lengths are 2.87 Å. Both K(3)-O(8) bond lengths are 2.86 Å. In the fourth K site, K(4) is bonded to one O(10), one O(14), two equivalent O(12), two equivalent O(5), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms to form KO12 cuboctahedra that share corners with four equivalent Na(1)O12 cuboctahedra, corners with eight equivalent K(2)O12 cuboctahedra, faces with two equivalent K(3)O12 cuboctahedra, faces with four equivalent Na(2)O12 cuboctahedra,  a faceface with one Nb(1)O6 octahedra,  a faceface with one Nb(4)O6 octahedra,  a faceface with one Nb(5)O6 octahedra,  a faceface with one W(1)O6 octahedra, faces with two equivalent Nb(2)O6 octahedra, and faces with two equivalent Nb(3)O6 octahedra. The K(4)-O(10) bond length is 2.87 Å. The K(4)-O(14) bond length is 2.86 Å. Both K(4)-O(12) bond lengths are 2.86 Å. Both K(4)-O(5) bond lengths are 2.86 Å. Both K(4)-O(6) bond lengths are 2.85 Å. Both K(4)-O(7) bond lengths are 2.85 Å. Both K(4)-O(8) bond lengths are 2.84 Å. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to one O(10), one O(14), two equivalent O(1), two equivalent O(12), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form NaO12 cuboctahedra that share corners with four equivalent K(4)O12 cuboctahedra, corners with eight equivalent K(2)O12 cuboctahedra, faces with two equivalent K(1)O12 cuboctahedra, faces with four equivalent Na(2)O12 cuboctahedra,  a faceface with one Nb(1)O6 octahedra,  a faceface with one Nb(4)O6 octahedra,  a faceface with one Nb(5)O6 octahedra,  a faceface with one W(1)O6 octahedra, faces with two equivalent Nb(2)O6 octahedra, and faces with two equivalent Nb(3)O6 octahedra. The Na(1)-O(10) bond length is 2.85 Å. The Na(1)-O(14) bond length is 2.83 Å. Both Na(1)-O(1) bond lengths are 2.85 Å. Both Na(1)-O(12) bond lengths are 2.84 Å. Both Na(1)-O(2) bond lengths are 2.84 Å. Both Na(1)-O(3) bond lengths are 2.84 Å. Both Na(1)-O(4) bond lengths are 2.83 Å. In the second Na site, Na(2) is bonded to one O(1), one O(10), one O(14), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and two equivalent O(12) atoms to form NaO12 cuboctahedra that share corners with four equivalent K(1)O12 cuboctahedra, corners with four equivalent K(3)O12 cuboctahedra, corners with four equivalent Na(2)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, faces with two equivalent K(4)O12 cuboctahedra, faces with two equivalent Na(1)O12 cuboctahedra,  a faceface with one Nb(1)O6 octahedra,  a faceface with one Nb(4)O6 octahedra,  a faceface with one Nb(5)O6 octahedra,  a faceface with one W(1)O6 octahedra, faces with two equivalent Nb(2)O6 octahedra, and faces with two equivalent Nb(3)O6 octahedra. The Na(2)-O(1) bond length is 2.85 Å. The Na(2)-O(10) bond length is 2.86 Å. The Na(2)-O(14) bond length is 2.84 Å. The Na(2)-O(2) bond length is 2.84 Å. The Na(2)-O(3) bond length is 2.84 Å. The Na(2)-O(4) bond length is 2.83 Å. The Na(2)-O(5) bond length is 2.85 Å. The Na(2)-O(6) bond length is 2.84 Å. The Na(2)-O(7) bond length is 2.84 Å. The Na(2)-O(8) bond length is 2.83 Å. Both Na(2)-O(12) bond lengths are 2.85 Å. There are five inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to one O(10), one O(9), two equivalent O(2), and two equivalent O(6) atoms to form NbO6 octahedra that share corners with two equivalent W(1)O6 octahedra, corners with four equivalent Nb(3)O6 octahedra,  a faceface with one K(1)O12 cuboctahedra,  a faceface with one K(3)O12 cuboctahedra,  a faceface with one K(4)O12 cuboctahedra,  a faceface with one Na(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, and faces with two equivalent Na(2)O12 cuboctahedra. The corner-sharing octahedra are not tilted. The Nb(1)-O(10) bond length is 2.06 Å. The Nb(1)-O(9) bond length is 2.08 Å. Both Nb(1)-O(2) bond lengths are 2.01 Å. Both Nb(1)-O(6) bond lengths are 2.01 Å. In the second Nb site, Nb(2) is bonded to one O(1), one O(11), one O(12), one O(3), one O(5), and one O(7) atom to form NbO6 octahedra that share corners with two equivalent Nb(3)O6 octahedra, corners with two equivalent Nb(4)O6 octahedra, corners with two equivalent W(1)O6 octahedra,  a faceface with one K(1)O12 cuboctahedra,  a faceface with one K(3)O12 cuboctahedra,  a faceface with one K(4)O12 cuboctahedra,  a faceface with one Na(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, and faces with two equivalent Na(2)O12 cuboctahedra. The corner-sharing octahedra are not tilted. The Nb(2)-O(1) bond length is 2.06 Å. The Nb(2)-O(11) bond length is 2.01 Å. The Nb(2)-O(12) bond length is 2.00 Å. The Nb(2)-O(3) bond length is 2.01 Å. The Nb(2)-O(5) bond length is 2.07 Å. The Nb(2)-O(7) bond length is 2.01 Å. In the third Nb site, Nb(3) is bonded to one O(11), one O(12), one O(2), one O(4), one O(6), and one O(8) atom to form NbO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra, corners with two equivalent Nb(2)O6 octahedra, corners with two equivalent Nb(5)O6 octahedra,  a faceface with one K(1)O12 cuboctahedra,  a faceface with one K(3)O12 cuboctahedra,  a faceface with one K(4)O12 cuboctahedra,  a faceface with one Na(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, and faces with two equivalent Na(2)O12 cuboctahedra. The corner-sharing octahedra are not tilted. The Nb(3)-O(11) bond length is 2.04 Å. The Nb(3)-O(12) bond length is 2.02 Å. The Nb(3)-O(2) bond length is 2.02 Å. The Nb(3)-O(4) bond length is 2.01 Å. The Nb(3)-O(6) bond length is 2.03 Å. The Nb(3)-O(8) bond length is 2.02 Å. In the fourth Nb site, Nb(4) is bonded to one O(13), one O(14), two equivalent O(3), and two equivalent O(7) atoms to form NbO6 octahedra that share corners with two equivalent Nb(5)O6 octahedra, corners with four equivalent Nb(2)O6 octahedra,  a faceface with one K(1)O12 cuboctahedra,  a faceface with one K(3)O12 cuboctahedra,  a faceface with one K(4)O12 cuboctahedra,  a faceface with one Na(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, and faces with two equivalent Na(2)O12 cuboctahedra. The corner-sharing octahedra are not tilted. The Nb(4)-O(13) bond length is 2.02 Å. The Nb(4)-O(14) bond length is 2.01 Å. Both Nb(4)-O(3) bond lengths are 2.02 Å. Both Nb(4)-O(7) bond lengths are 2.03 Å. In the fifth Nb site, Nb(5) is bonded to one O(13), one O(14), two equivalent O(4), and two equivalent O(8) atoms to form NbO6 octahedra that share corners with two equivalent Nb(4)O6 octahedra, corners with four equivalent Nb(3)O6 octahedra,  a faceface with one K(1)O12 cuboctahedra,  a faceface with one K(3)O12 cuboctahedra,  a faceface with one K(4)O12 cuboctahedra,  a faceface with one Na(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, and faces with two equivalent Na(2)O12 cuboctahedra. The corner-sharing octahedra are not tilted. The Nb(5)-O(13) bond length is 2.03 Å. The Nb(5)-O(14) bond length is 2.01 Å. Both Nb(5)-O(4) bond lengths are 2.02 Å. Both Nb(5)-O(8) bond lengths are 2.02 Å. W(1) is bonded to one O(10), one O(9), two equivalent O(1), and two equivalent O(5) atoms to form WO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra, corners with four equivalent Nb(2)O6 octahedra,  a faceface with one K(1)O12 cuboctahedra,  a faceface with one K(3)O12 cuboctahedra,  a faceface with one K(4)O12 cuboctahedra,  a faceface with one Na(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, and faces with two equivalent Na(2)O12 cuboctahedra. The corner-sharing octahedra are not tilted. The W(1)-O(10) bond length is 1.96 Å. The W(1)-O(9) bond length is 1.97 Å. Both W(1)-O(1) bond lengths are 1.96 Å. Both W(1)-O(5) bond lengths are 1.97 Å. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded to one K(1), one K(2), one Na(1), one Na(2), one Nb(2), and one W(1) atom to form distorted OK2Na2NbW octahedra that share corners with two equivalent O(8)K3NaNb2 octahedra, corners with two equivalent O(5)K3NaNbW octahedra, corners with two equivalent O(11)K4Nb2 octahedra, corners with two equivalent O(13)K4Nb2 octahedra,  a faceface with one O(1)K2Na2NbW octahedra,  a faceface with one O(5)K3NaNbW octahedra,  a faceface with one O(11)K4Nb2 octahedra,  a faceface with one O(9)K4NbW octahedra, and  a faceface with one O(10)KNa3NbW octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the second O site, O(2) is bonded in a distorted linear geometry to one K(1), one K(2), one Na(1), one Na(2), one Nb(1), and one Nb(3) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one K(1), one K(2), one Na(1), one Na(2), one Nb(2), and one Nb(4) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to one K(1), one K(2), one Na(1), one Na(2), one Nb(3), and one Nb(5) atom. In the fifth O site, O(5) is bonded to one K(2), one K(3), one K(4), one Na(2), one Nb(2), and one W(1) atom to form distorted OK3NaNbW octahedra that share corners with two equivalent O(1)K2Na2NbW octahedra, corners with two equivalent O(11)K4Nb2 octahedra, corners with two equivalent O(13)K4Nb2 octahedra, corners with six equivalent O(8)K3NaNb2 octahedra,  a faceface with one O(1)K2Na2NbW octahedra,  a faceface with one O(5)K3NaNbW octahedra,  a faceface with one O(11)K4Nb2 octahedra,  a faceface with one O(9)K4NbW octahedra, and  a faceface with one O(10)KNa3NbW octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the sixth O site, O(6) is bonded in a distorted linear geometry to one K(2), one K(3), one K(4), one Na(2), one Nb(1), and one Nb(3) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to one K(2), one K(3), one K(4), one Na(2), one Nb(2), and one Nb(4) atom. In the eighth O site, O(8) is bonded to one K(2), one K(3), one K(4), one Na(2), one Nb(3), and one Nb(5) atom to form distorted OK3NaNb2 octahedra that share corners with two equivalent O(1)K2Na2NbW octahedra, corners with two equivalent O(11)K4Nb2 octahedra, corners with two equivalent O(9)K4NbW octahedra, corners with two equivalent O(10)KNa3NbW octahedra, corners with six equivalent O(5)K3NaNbW octahedra,  a faceface with one O(8)K3NaNb2 octahedra,  a faceface with one O(11)K4Nb2 octahedra, and  a faceface with one O(13)K4Nb2 octahedra. The corner-sharing octahedral tilt angles range from 1-60°. In the ninth O site, O(9) is bonded to one K(1), one K(3), two equivalent K(2), one Nb(1), and one W(1) atom to form distorted OK4NbW octahedra that share corners with two equivalent O(10)KNa3NbW octahedra, corners with four equivalent O(8)K3NaNb2 octahedra, corners with four equivalent O(13)K4Nb2 octahedra, edges with four equivalent O(11)K4Nb2 octahedra, faces with two equivalent O(1)K2Na2NbW octahedra, and faces with two equivalent O(5)K3NaNbW octahedra. The corner-sharing octahedral tilt angles range from 0-59°. In the tenth O site, O(10) is bonded to one K(4), one Na(1), two equivalent Na(2), one Nb(1), and one W(1) atom to form distorted OKNa3NbW octahedra that share corners with two equivalent O(9)K4NbW octahedra, corners with four equivalent O(8)K3NaNb2 octahedra, faces with two equivalent O(1)K2Na2NbW octahedra, and faces with two equivalent O(5)K3NaNbW octahedra. The corner-sharing octahedral tilt angles range from 0-59°. In the eleventh O site, O(11) is bonded to one K(1), one K(3), two equivalent K(2), one Nb(2), and one Nb(3) atom to form distorted OK4Nb2 octahedra that share corners with two equivalent O(1)K2Na2NbW octahedra, corners with two equivalent O(8)K3NaNb2 octahedra, corners with two equivalent O(5)K3NaNbW octahedra, corners with four equivalent O(11)K4Nb2 octahedra, edges with two equivalent O(13)K4Nb2 octahedra, edges with two equivalent O(9)K4NbW octahedra,  a faceface with one O(1)K2Na2NbW octahedra,  a faceface with one O(8)K3NaNb2 octahedra, and  a faceface with one O(5)K3NaNbW octahedra. The corner-sharing octahedral tilt angles range from 1-61°. In the twelfth O site, O(12) is bonded in a distorted linear geometry to one K(4), one Na(1), two equivalent Na(2), one Nb(2), and one Nb(3) atom. In the thirteenth O site, O(13) is bonded to one K(1), one K(3), two equivalent K(2), one Nb(4), and one Nb(5) atom to form distorted OK4Nb2 octahedra that share corners with four equivalent O(1)K2Na2NbW octahedra, corners with four equivalent O(5)K3NaNbW octahedra, corners with four equivalent O(9)K4NbW octahedra, edges with four equivalent O(11)K4Nb2 octahedra, and faces with two equivalent O(8)K3NaNb2 octahedra. The corner-sharing octahedral tilt angles range from 1-59°. In the fourteenth O site, O(14) is bonded in a distorted linear geometry to one K(4), one Na(1), two equivalent Na(2), one Nb(4), and one Nb(5) atom.