LiTa3N4 is Caswellsilverite-like structured and crystallizes in the orthorhombic Pnn2 space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded to two equivalent N(2), two equivalent N(3), and two equivalent N(6) atoms to form LiN6 octahedra that share corners with two equivalent Ta(1)N6 pentagonal pyramids, corners with two equivalent Ta(2)N6 pentagonal pyramids, corners with two equivalent Ta(5)N6 pentagonal pyramids,  an edgeedge with one Ta(3)N6 octahedra,  an edgeedge with one Ta(6)N6 octahedra, edges with two equivalent Li(2)N6 octahedra, edges with two equivalent Ta(4)N6 octahedra, edges with two equivalent Ta(1)N6 pentagonal pyramids, edges with two equivalent Ta(2)N6 pentagonal pyramids, and edges with two equivalent Ta(5)N6 pentagonal pyramids. In the second Li site, Li(2) is bonded to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms to form LiN6 octahedra that share corners with two equivalent Ta(1)N6 pentagonal pyramids, corners with two equivalent Ta(2)N6 pentagonal pyramids, corners with two equivalent Ta(5)N6 pentagonal pyramids,  an edgeedge with one Li(3)N6 octahedra,  an edgeedge with one Ta(4)N6 octahedra, edges with two equivalent Li(1)N6 octahedra, edges with two equivalent Ta(3)N6 octahedra, edges with two equivalent Ta(1)N6 pentagonal pyramids, edges with two equivalent Ta(2)N6 pentagonal pyramids, and edges with two equivalent Ta(5)N6 pentagonal pyramids. In the third Li site, Li(3) is bonded to two equivalent N(1), two equivalent N(4), and two equivalent N(5) atoms to form LiN6 octahedra that share corners with two equivalent Ta(1)N6 pentagonal pyramids, corners with two equivalent Ta(2)N6 pentagonal pyramids, corners with two equivalent Ta(5)N6 pentagonal pyramids,  an edgeedge with one Li(2)N6 octahedra,  an edgeedge with one Ta(4)N6 octahedra, edges with two equivalent Ta(3)N6 octahedra, edges with two equivalent Ta(6)N6 octahedra, edges with two equivalent Ta(1)N6 pentagonal pyramids, edges with two equivalent Ta(2)N6 pentagonal pyramids, and edges with two equivalent Ta(5)N6 pentagonal pyramids. There are six inequivalent Ta sites. In the first Ta site, Ta(1) is bonded to one N(1), one N(2), one N(3), one N(4), one N(5), and one N(6) atom to form distorted TaN6 pentagonal pyramids that share  a cornercorner with one Li(1)N6 octahedra,  a cornercorner with one Li(2)N6 octahedra,  a cornercorner with one Li(3)N6 octahedra,  a cornercorner with one Ta(3)N6 octahedra,  a cornercorner with one Ta(4)N6 octahedra,  a cornercorner with one Ta(6)N6 octahedra,  an edgeedge with one Li(1)N6 octahedra,  an edgeedge with one Li(2)N6 octahedra,  an edgeedge with one Li(3)N6 octahedra,  an edgeedge with one Ta(3)N6 octahedra,  an edgeedge with one Ta(4)N6 octahedra,  an edgeedge with one Ta(6)N6 octahedra, edges with three equivalent Ta(2)N6 pentagonal pyramids, and edges with three equivalent Ta(5)N6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 1-6°. In the second Ta site, Ta(2) is bonded to one N(1), one N(2), one N(3), one N(4), one N(5), and one N(6) atom to form distorted TaN6 pentagonal pyramids that share  a cornercorner with one Li(1)N6 octahedra,  a cornercorner with one Li(2)N6 octahedra,  a cornercorner with one Li(3)N6 octahedra,  a cornercorner with one Ta(3)N6 octahedra,  a cornercorner with one Ta(4)N6 octahedra,  a cornercorner with one Ta(6)N6 octahedra,  an edgeedge with one Li(1)N6 octahedra,  an edgeedge with one Li(2)N6 octahedra,  an edgeedge with one Li(3)N6 octahedra,  an edgeedge with one Ta(3)N6 octahedra,  an edgeedge with one Ta(4)N6 octahedra,  an edgeedge with one Ta(6)N6 octahedra, edges with three equivalent Ta(1)N6 pentagonal pyramids, and edges with three equivalent Ta(5)N6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 3-5°. In the third Ta site, Ta(3) is bonded to two equivalent N(1), two equivalent N(2), and two equivalent N(4) atoms to form TaN6 octahedra that share corners with two equivalent Ta(1)N6 pentagonal pyramids, corners with two equivalent Ta(2)N6 pentagonal pyramids, corners with two equivalent Ta(5)N6 pentagonal pyramids,  an edgeedge with one Li(1)N6 octahedra,  an edgeedge with one Ta(6)N6 octahedra, edges with two equivalent Li(2)N6 octahedra, edges with two equivalent Li(3)N6 octahedra, edges with two equivalent Ta(1)N6 pentagonal pyramids, edges with two equivalent Ta(2)N6 pentagonal pyramids, and edges with two equivalent Ta(5)N6 pentagonal pyramids. In the fourth Ta site, Ta(4) is bonded to two equivalent N(3), two equivalent N(5), and two equivalent N(6) atoms to form TaN6 octahedra that share corners with two equivalent Ta(1)N6 pentagonal pyramids, corners with two equivalent Ta(2)N6 pentagonal pyramids, corners with two equivalent Ta(5)N6 pentagonal pyramids,  an edgeedge with one Li(2)N6 octahedra,  an edgeedge with one Li(3)N6 octahedra, edges with two equivalent Li(1)N6 octahedra, edges with two equivalent Ta(6)N6 octahedra, edges with two equivalent Ta(1)N6 pentagonal pyramids, edges with two equivalent Ta(2)N6 pentagonal pyramids, and edges with two equivalent Ta(5)N6 pentagonal pyramids. In the fifth Ta site, Ta(5) is bonded to one N(1), one N(2), one N(3), one N(4), one N(5), and one N(6) atom to form distorted TaN6 pentagonal pyramids that share  a cornercorner with one Li(1)N6 octahedra,  a cornercorner with one Li(2)N6 octahedra,  a cornercorner with one Li(3)N6 octahedra,  a cornercorner with one Ta(3)N6 octahedra,  a cornercorner with one Ta(4)N6 octahedra,  a cornercorner with one Ta(6)N6 octahedra,  an edgeedge with one Li(1)N6 octahedra,  an edgeedge with one Li(2)N6 octahedra,  an edgeedge with one Li(3)N6 octahedra,  an edgeedge with one Ta(3)N6 octahedra,  an edgeedge with one Ta(4)N6 octahedra,  an edgeedge with one Ta(6)N6 octahedra, edges with three equivalent Ta(1)N6 pentagonal pyramids, and edges with three equivalent Ta(2)N6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 2-5°. In the sixth Ta site, Ta(6) is bonded to two equivalent N(4), two equivalent N(5), and two equivalent N(6) atoms to form TaN6 octahedra that share corners with two equivalent Ta(1)N6 pentagonal pyramids, corners with two equivalent Ta(2)N6 pentagonal pyramids, corners with two equivalent Ta(5)N6 pentagonal pyramids,  an edgeedge with one Li(1)N6 octahedra,  an edgeedge with one Ta(3)N6 octahedra, edges with two equivalent Li(3)N6 octahedra, edges with two equivalent Ta(4)N6 octahedra, edges with two equivalent Ta(1)N6 pentagonal pyramids, edges with two equivalent Ta(2)N6 pentagonal pyramids, and edges with two equivalent Ta(5)N6 pentagonal pyramids. There are six inequivalent N sites. In the first N site, N(1) is bonded to one Li(2), one Li(3), one Ta(1), one Ta(2), one Ta(3), and one Ta(5) atom to form NLi2Ta4 octahedra that share  a cornercorner with one N(1)Li2Ta4 octahedra,  a cornercorner with one N(2)Li2Ta4 octahedra,  a cornercorner with one N(4)LiTa5 octahedra, corners with three equivalent N(3)Li2Ta4 octahedra, corners with three equivalent N(5)LiTa5 octahedra,  an edgeedge with one N(1)Li2Ta4 octahedra,  an edgeedge with one N(3)Li2Ta4 octahedra,  an edgeedge with one N(5)LiTa5 octahedra, edges with three equivalent N(2)Li2Ta4 octahedra, edges with three equivalent N(4)LiTa5 octahedra, and  a faceface with one N(6)LiTa5 octahedra. The corner-sharing octahedral tilt angles range from 3-49°. In the second N site, N(2) is bonded to one Li(1), one Li(2), one Ta(1), one Ta(2), one Ta(3), and one Ta(5) atom to form NLi2Ta4 octahedra that share  a cornercorner with one N(1)Li2Ta4 octahedra,  a cornercorner with one N(2)Li2Ta4 octahedra,  a cornercorner with one N(3)Li2Ta4 octahedra, corners with three equivalent N(4)LiTa5 octahedra, corners with three equivalent N(6)LiTa5 octahedra,  an edgeedge with one N(2)Li2Ta4 octahedra,  an edgeedge with one N(4)LiTa5 octahedra,  an edgeedge with one N(6)LiTa5 octahedra, edges with three equivalent N(1)Li2Ta4 octahedra, edges with three equivalent N(3)Li2Ta4 octahedra, and  a faceface with one N(5)LiTa5 octahedra. The corner-sharing octahedral tilt angles range from 1-49°. In the third N site, N(3) is bonded to one Li(1), one Li(2), one Ta(1), one Ta(2), one Ta(4), and one Ta(5) atom to form NLi2Ta4 octahedra that share  a cornercorner with one N(2)Li2Ta4 octahedra,  a cornercorner with one N(3)Li2Ta4 octahedra,  a cornercorner with one N(6)LiTa5 octahedra, corners with three equivalent N(1)Li2Ta4 octahedra, corners with three equivalent N(5)LiTa5 octahedra,  an edgeedge with one N(1)Li2Ta4 octahedra,  an edgeedge with one N(3)Li2Ta4 octahedra,  an edgeedge with one N(5)LiTa5 octahedra, edges with three equivalent N(2)Li2Ta4 octahedra, edges with three equivalent N(6)LiTa5 octahedra, and  a faceface with one N(4)LiTa5 octahedra. The corner-sharing octahedral tilt angles range from 3-49°. In the fourth N site, N(4) is bonded to one Li(3), one Ta(1), one Ta(2), one Ta(3), one Ta(5), and one Ta(6) atom to form NLiTa5 octahedra that share  a cornercorner with one N(1)Li2Ta4 octahedra,  a cornercorner with one N(4)LiTa5 octahedra,  a cornercorner with one N(5)LiTa5 octahedra, corners with three equivalent N(2)Li2Ta4 octahedra, corners with three equivalent N(6)LiTa5 octahedra,  an edgeedge with one N(2)Li2Ta4 octahedra,  an edgeedge with one N(4)LiTa5 octahedra,  an edgeedge with one N(6)LiTa5 octahedra, edges with three equivalent N(1)Li2Ta4 octahedra, edges with three equivalent N(5)LiTa5 octahedra, and  a faceface with one N(3)Li2Ta4 octahedra. The corner-sharing octahedral tilt angles range from 1-49°. In the fifth N site, N(5) is bonded to one Li(3), one Ta(1), one Ta(2), one Ta(4), one Ta(5), and one Ta(6) atom to form NLiTa5 octahedra that share  a cornercorner with one N(4)LiTa5 octahedra,  a cornercorner with one N(5)LiTa5 octahedra,  a cornercorner with one N(6)LiTa5 octahedra, corners with three equivalent N(1)Li2Ta4 octahedra, corners with three equivalent N(3)Li2Ta4 octahedra,  an edgeedge with one N(1)Li2Ta4 octahedra,  an edgeedge with one N(3)Li2Ta4 octahedra,  an edgeedge with one N(5)LiTa5 octahedra, edges with three equivalent N(4)LiTa5 octahedra, edges with three equivalent N(6)LiTa5 octahedra, and  a faceface with one N(2)Li2Ta4 octahedra. The corner-sharing octahedral tilt angles range from 3-49°. In the sixth N site, N(6) is bonded to one Li(1), one Ta(1), one Ta(2), one Ta(4), one Ta(5), and one Ta(6) atom to form NLiTa5 octahedra that share  a cornercorner with one N(3)Li2Ta4 octahedra,  a cornercorner with one N(5)LiTa5 octahedra,  a cornercorner with one N(6)LiTa5 octahedra, corners with three equivalent N(2)Li2Ta4 octahedra, corners with three equivalent N(4)LiTa5 octahedra,  an edgeedge with one N(2)Li2Ta4 octahedra,  an edgeedge with one N(4)LiTa5 octahedra,  an edgeedge with one N(6)LiTa5 octahedra, edges with three equivalent N(3)Li2Ta4 octahedra, edges with three equivalent N(5)LiTa5 octahedra, and  a faceface with one N(1)Li2Ta4 octahedra. The corner-sharing octahedral tilt angles range from 1-48°.
LiTa3N4 is Caswellsilverite-like structured and crystallizes in the orthorhombic Pnn2 space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded to two equivalent N(2), two equivalent N(3), and two equivalent N(6) atoms to form LiN6 octahedra that share corners with two equivalent Ta(1)N6 pentagonal pyramids, corners with two equivalent Ta(2)N6 pentagonal pyramids, corners with two equivalent Ta(5)N6 pentagonal pyramids,  an edgeedge with one Ta(3)N6 octahedra,  an edgeedge with one Ta(6)N6 octahedra, edges with two equivalent Li(2)N6 octahedra, edges with two equivalent Ta(4)N6 octahedra, edges with two equivalent Ta(1)N6 pentagonal pyramids, edges with two equivalent Ta(2)N6 pentagonal pyramids, and edges with two equivalent Ta(5)N6 pentagonal pyramids. Both Li(1)-N(2) bond lengths are 2.11 Å. Both Li(1)-N(3) bond lengths are 2.15 Å. Both Li(1)-N(6) bond lengths are 2.18 Å. In the second Li site, Li(2) is bonded to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms to form LiN6 octahedra that share corners with two equivalent Ta(1)N6 pentagonal pyramids, corners with two equivalent Ta(2)N6 pentagonal pyramids, corners with two equivalent Ta(5)N6 pentagonal pyramids,  an edgeedge with one Li(3)N6 octahedra,  an edgeedge with one Ta(4)N6 octahedra, edges with two equivalent Li(1)N6 octahedra, edges with two equivalent Ta(3)N6 octahedra, edges with two equivalent Ta(1)N6 pentagonal pyramids, edges with two equivalent Ta(2)N6 pentagonal pyramids, and edges with two equivalent Ta(5)N6 pentagonal pyramids. Both Li(2)-N(1) bond lengths are 2.13 Å. Both Li(2)-N(2) bond lengths are 2.15 Å. Both Li(2)-N(3) bond lengths are 2.18 Å. In the third Li site, Li(3) is bonded to two equivalent N(1), two equivalent N(4), and two equivalent N(5) atoms to form LiN6 octahedra that share corners with two equivalent Ta(1)N6 pentagonal pyramids, corners with two equivalent Ta(2)N6 pentagonal pyramids, corners with two equivalent Ta(5)N6 pentagonal pyramids,  an edgeedge with one Li(2)N6 octahedra,  an edgeedge with one Ta(4)N6 octahedra, edges with two equivalent Ta(3)N6 octahedra, edges with two equivalent Ta(6)N6 octahedra, edges with two equivalent Ta(1)N6 pentagonal pyramids, edges with two equivalent Ta(2)N6 pentagonal pyramids, and edges with two equivalent Ta(5)N6 pentagonal pyramids. Both Li(3)-N(1) bond lengths are 2.10 Å. Both Li(3)-N(4) bond lengths are 2.14 Å. Both Li(3)-N(5) bond lengths are 2.23 Å. There are six inequivalent Ta sites. In the first Ta site, Ta(1) is bonded to one N(1), one N(2), one N(3), one N(4), one N(5), and one N(6) atom to form distorted TaN6 pentagonal pyramids that share  a cornercorner with one Li(1)N6 octahedra,  a cornercorner with one Li(2)N6 octahedra,  a cornercorner with one Li(3)N6 octahedra,  a cornercorner with one Ta(3)N6 octahedra,  a cornercorner with one Ta(4)N6 octahedra,  a cornercorner with one Ta(6)N6 octahedra,  an edgeedge with one Li(1)N6 octahedra,  an edgeedge with one Li(2)N6 octahedra,  an edgeedge with one Li(3)N6 octahedra,  an edgeedge with one Ta(3)N6 octahedra,  an edgeedge with one Ta(4)N6 octahedra,  an edgeedge with one Ta(6)N6 octahedra, edges with three equivalent Ta(2)N6 pentagonal pyramids, and edges with three equivalent Ta(5)N6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 1-6°. The Ta(1)-N(1) bond length is 2.18 Å. The Ta(1)-N(2) bond length is 2.18 Å. The Ta(1)-N(3) bond length is 2.21 Å. The Ta(1)-N(4) bond length is 2.19 Å. The Ta(1)-N(5) bond length is 2.22 Å. The Ta(1)-N(6) bond length is 2.20 Å. In the second Ta site, Ta(2) is bonded to one N(1), one N(2), one N(3), one N(4), one N(5), and one N(6) atom to form distorted TaN6 pentagonal pyramids that share  a cornercorner with one Li(1)N6 octahedra,  a cornercorner with one Li(2)N6 octahedra,  a cornercorner with one Li(3)N6 octahedra,  a cornercorner with one Ta(3)N6 octahedra,  a cornercorner with one Ta(4)N6 octahedra,  a cornercorner with one Ta(6)N6 octahedra,  an edgeedge with one Li(1)N6 octahedra,  an edgeedge with one Li(2)N6 octahedra,  an edgeedge with one Li(3)N6 octahedra,  an edgeedge with one Ta(3)N6 octahedra,  an edgeedge with one Ta(4)N6 octahedra,  an edgeedge with one Ta(6)N6 octahedra, edges with three equivalent Ta(1)N6 pentagonal pyramids, and edges with three equivalent Ta(5)N6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 3-5°. The Ta(2)-N(1) bond length is 2.18 Å. The Ta(2)-N(2) bond length is 2.17 Å. The Ta(2)-N(3) bond length is 2.19 Å. The Ta(2)-N(4) bond length is 2.22 Å. The Ta(2)-N(5) bond length is 2.21 Å. The Ta(2)-N(6) bond length is 2.19 Å. In the third Ta site, Ta(3) is bonded to two equivalent N(1), two equivalent N(2), and two equivalent N(4) atoms to form TaN6 octahedra that share corners with two equivalent Ta(1)N6 pentagonal pyramids, corners with two equivalent Ta(2)N6 pentagonal pyramids, corners with two equivalent Ta(5)N6 pentagonal pyramids,  an edgeedge with one Li(1)N6 octahedra,  an edgeedge with one Ta(6)N6 octahedra, edges with two equivalent Li(2)N6 octahedra, edges with two equivalent Li(3)N6 octahedra, edges with two equivalent Ta(1)N6 pentagonal pyramids, edges with two equivalent Ta(2)N6 pentagonal pyramids, and edges with two equivalent Ta(5)N6 pentagonal pyramids. Both Ta(3)-N(1) bond lengths are 2.11 Å. Both Ta(3)-N(2) bond lengths are 2.02 Å. Both Ta(3)-N(4) bond lengths are 2.21 Å. In the fourth Ta site, Ta(4) is bonded to two equivalent N(3), two equivalent N(5), and two equivalent N(6) atoms to form TaN6 octahedra that share corners with two equivalent Ta(1)N6 pentagonal pyramids, corners with two equivalent Ta(2)N6 pentagonal pyramids, corners with two equivalent Ta(5)N6 pentagonal pyramids,  an edgeedge with one Li(2)N6 octahedra,  an edgeedge with one Li(3)N6 octahedra, edges with two equivalent Li(1)N6 octahedra, edges with two equivalent Ta(6)N6 octahedra, edges with two equivalent Ta(1)N6 pentagonal pyramids, edges with two equivalent Ta(2)N6 pentagonal pyramids, and edges with two equivalent Ta(5)N6 pentagonal pyramids. Both Ta(4)-N(3) bond lengths are 2.02 Å. Both Ta(4)-N(5) bond lengths are 2.23 Å. Both Ta(4)-N(6) bond lengths are 2.12 Å. In the fifth Ta site, Ta(5) is bonded to one N(1), one N(2), one N(3), one N(4), one N(5), and one N(6) atom to form distorted TaN6 pentagonal pyramids that share  a cornercorner with one Li(1)N6 octahedra,  a cornercorner with one Li(2)N6 octahedra,  a cornercorner with one Li(3)N6 octahedra,  a cornercorner with one Ta(3)N6 octahedra,  a cornercorner with one Ta(4)N6 octahedra,  a cornercorner with one Ta(6)N6 octahedra,  an edgeedge with one Li(1)N6 octahedra,  an edgeedge with one Li(2)N6 octahedra,  an edgeedge with one Li(3)N6 octahedra,  an edgeedge with one Ta(3)N6 octahedra,  an edgeedge with one Ta(4)N6 octahedra,  an edgeedge with one Ta(6)N6 octahedra, edges with three equivalent Ta(1)N6 pentagonal pyramids, and edges with three equivalent Ta(2)N6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 2-5°. The Ta(5)-N(1) bond length is 2.17 Å. The Ta(5)-N(2) bond length is 2.17 Å. The Ta(5)-N(3) bond length is 2.18 Å. The Ta(5)-N(4) bond length is 2.21 Å. The Ta(5)-N(5) bond length is 2.21 Å. The Ta(5)-N(6) bond length is 2.22 Å. In the sixth Ta site, Ta(6) is bonded to two equivalent N(4), two equivalent N(5), and two equivalent N(6) atoms to form TaN6 octahedra that share corners with two equivalent Ta(1)N6 pentagonal pyramids, corners with two equivalent Ta(2)N6 pentagonal pyramids, corners with two equivalent Ta(5)N6 pentagonal pyramids,  an edgeedge with one Li(1)N6 octahedra,  an edgeedge with one Ta(3)N6 octahedra, edges with two equivalent Li(3)N6 octahedra, edges with two equivalent Ta(4)N6 octahedra, edges with two equivalent Ta(1)N6 pentagonal pyramids, edges with two equivalent Ta(2)N6 pentagonal pyramids, and edges with two equivalent Ta(5)N6 pentagonal pyramids. Both Ta(6)-N(4) bond lengths are 2.11 Å. Both Ta(6)-N(5) bond lengths are 2.12 Å. Both Ta(6)-N(6) bond lengths are 2.15 Å. There are six inequivalent N sites. In the first N site, N(1) is bonded to one Li(2), one Li(3), one Ta(1), one Ta(2), one Ta(3), and one Ta(5) atom to form NLi2Ta4 octahedra that share  a cornercorner with one N(1)Li2Ta4 octahedra,  a cornercorner with one N(2)Li2Ta4 octahedra,  a cornercorner with one N(4)LiTa5 octahedra, corners with three equivalent N(3)Li2Ta4 octahedra, corners with three equivalent N(5)LiTa5 octahedra,  an edgeedge with one N(1)Li2Ta4 octahedra,  an edgeedge with one N(3)Li2Ta4 octahedra,  an edgeedge with one N(5)LiTa5 octahedra, edges with three equivalent N(2)Li2Ta4 octahedra, edges with three equivalent N(4)LiTa5 octahedra, and  a faceface with one N(6)LiTa5 octahedra. The corner-sharing octahedral tilt angles range from 3-49°. In the second N site, N(2) is bonded to one Li(1), one Li(2), one Ta(1), one Ta(2), one Ta(3), and one Ta(5) atom to form NLi2Ta4 octahedra that share  a cornercorner with one N(1)Li2Ta4 octahedra,  a cornercorner with one N(2)Li2Ta4 octahedra,  a cornercorner with one N(3)Li2Ta4 octahedra, corners with three equivalent N(4)LiTa5 octahedra, corners with three equivalent N(6)LiTa5 octahedra,  an edgeedge with one N(2)Li2Ta4 octahedra,  an edgeedge with one N(4)LiTa5 octahedra,  an edgeedge with one N(6)LiTa5 octahedra, edges with three equivalent N(1)Li2Ta4 octahedra, edges with three equivalent N(3)Li2Ta4 octahedra, and  a faceface with one N(5)LiTa5 octahedra. The corner-sharing octahedral tilt angles range from 1-49°. In the third N site, N(3) is bonded to one Li(1), one Li(2), one Ta(1), one Ta(2), one Ta(4), and one Ta(5) atom to form NLi2Ta4 octahedra that share  a cornercorner with one N(2)Li2Ta4 octahedra,  a cornercorner with one N(3)Li2Ta4 octahedra,  a cornercorner with one N(6)LiTa5 octahedra, corners with three equivalent N(1)Li2Ta4 octahedra, corners with three equivalent N(5)LiTa5 octahedra,  an edgeedge with one N(1)Li2Ta4 octahedra,  an edgeedge with one N(3)Li2Ta4 octahedra,  an edgeedge with one N(5)LiTa5 octahedra, edges with three equivalent N(2)Li2Ta4 octahedra, edges with three equivalent N(6)LiTa5 octahedra, and  a faceface with one N(4)LiTa5 octahedra. The corner-sharing octahedral tilt angles range from 3-49°. In the fourth N site, N(4) is bonded to one Li(3), one Ta(1), one Ta(2), one Ta(3), one Ta(5), and one Ta(6) atom to form NLiTa5 octahedra that share  a cornercorner with one N(1)Li2Ta4 octahedra,  a cornercorner with one N(4)LiTa5 octahedra,  a cornercorner with one N(5)LiTa5 octahedra, corners with three equivalent N(2)Li2Ta4 octahedra, corners with three equivalent N(6)LiTa5 octahedra,  an edgeedge with one N(2)Li2Ta4 octahedra,  an edgeedge with one N(4)LiTa5 octahedra,  an edgeedge with one N(6)LiTa5 octahedra, edges with three equivalent N(1)Li2Ta4 octahedra, edges with three equivalent N(5)LiTa5 octahedra, and  a faceface with one N(3)Li2Ta4 octahedra. The corner-sharing octahedral tilt angles range from 1-49°. In the fifth N site, N(5) is bonded to one Li(3), one Ta(1), one Ta(2), one Ta(4), one Ta(5), and one Ta(6) atom to form NLiTa5 octahedra that share  a cornercorner with one N(4)LiTa5 octahedra,  a cornercorner with one N(5)LiTa5 octahedra,  a cornercorner with one N(6)LiTa5 octahedra, corners with three equivalent N(1)Li2Ta4 octahedra, corners with three equivalent N(3)Li2Ta4 octahedra,  an edgeedge with one N(1)Li2Ta4 octahedra,  an edgeedge with one N(3)Li2Ta4 octahedra,  an edgeedge with one N(5)LiTa5 octahedra, edges with three equivalent N(4)LiTa5 octahedra, edges with three equivalent N(6)LiTa5 octahedra, and  a faceface with one N(2)Li2Ta4 octahedra. The corner-sharing octahedral tilt angles range from 3-49°. In the sixth N site, N(6) is bonded to one Li(1), one Ta(1), one Ta(2), one Ta(4), one Ta(5), and one Ta(6) atom to form NLiTa5 octahedra that share  a cornercorner with one N(3)Li2Ta4 octahedra,  a cornercorner with one N(5)LiTa5 octahedra,  a cornercorner with one N(6)LiTa5 octahedra, corners with three equivalent N(2)Li2Ta4 octahedra, corners with three equivalent N(4)LiTa5 octahedra,  an edgeedge with one N(2)Li2Ta4 octahedra,  an edgeedge with one N(4)LiTa5 octahedra,  an edgeedge with one N(6)LiTa5 octahedra, edges with three equivalent N(3)Li2Ta4 octahedra, edges with three equivalent N(5)LiTa5 octahedra, and  a faceface with one N(1)Li2Ta4 octahedra. The corner-sharing octahedral tilt angles range from 1-48°.