Nd2W2Te2O13 crystallizes in the triclinic P-1 space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(13), one O(3), one O(6), one O(8), and two equivalent O(5) atoms. In the second Nd site, Nd(2) is bonded in a 9-coordinate geometry to one O(1), one O(12), one O(13), one O(2), one O(4), one O(7), one O(9), and two equivalent O(10) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(12), one O(2), one O(3), one O(6), one O(7), and one O(9) atom to form distorted edge-sharing WO6 octahedra. In the second W site, W(2) is bonded to one O(11), one O(3), one O(4), one O(5), one O(8), and one O(9) atom to form distorted edge-sharing WO6 octahedra. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted see-saw-like geometry to one O(1), one O(5), one O(6), and one O(8) atom. In the second Te site, Te(2) is bonded in a distorted T-shaped geometry to one O(10), one O(13), and one O(7) atom. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Nd(1), one Nd(2), and one Te(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Nd(2) and one W(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Nd(1), one W(1), and one W(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Nd(2) and one W(2) atom. In the fifth O site, O(5) is bonded to two equivalent Nd(1), one W(2), and one Te(1) atom to form edge-sharing ONd2TeW tetrahedra. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Nd(1), one W(1), and one Te(1) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Nd(2), one W(1), and one Te(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Nd(1), one W(2), and one Te(1) atom. In the ninth O site, O(9) is bonded in a distorted trigonal non-coplanar geometry to one Nd(2), one W(1), and one W(2) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to two equivalent Nd(2) and one Te(2) atom. In the eleventh O site, O(11) is bonded in a bent 150 degrees geometry to one Nd(1) and one W(2) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Nd(2) and one W(1) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal non-coplanar geometry to one Nd(1), one Nd(2), and one Te(2) atom.
Nd2W2Te2O13 crystallizes in the triclinic P-1 space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(13), one O(3), one O(6), one O(8), and two equivalent O(5) atoms. The Nd(1)-O(1) bond length is 2.59 Å. The Nd(1)-O(11) bond length is 2.41 Å. The Nd(1)-O(13) bond length is 2.37 Å. The Nd(1)-O(3) bond length is 2.51 Å. The Nd(1)-O(6) bond length is 2.60 Å. The Nd(1)-O(8) bond length is 2.47 Å. There is one shorter (2.49 Å) and one longer (2.61 Å) Nd(1)-O(5) bond length. In the second Nd site, Nd(2) is bonded in a 9-coordinate geometry to one O(1), one O(12), one O(13), one O(2), one O(4), one O(7), one O(9), and two equivalent O(10) atoms. The Nd(2)-O(1) bond length is 2.47 Å. The Nd(2)-O(12) bond length is 2.43 Å. The Nd(2)-O(13) bond length is 2.53 Å. The Nd(2)-O(2) bond length is 2.66 Å. The Nd(2)-O(4) bond length is 2.71 Å. The Nd(2)-O(7) bond length is 2.52 Å. The Nd(2)-O(9) bond length is 2.50 Å. There is one shorter (2.42 Å) and one longer (2.58 Å) Nd(2)-O(10) bond length. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(12), one O(2), one O(3), one O(6), one O(7), and one O(9) atom to form distorted edge-sharing WO6 octahedra. The W(1)-O(12) bond length is 1.79 Å. The W(1)-O(2) bond length is 1.83 Å. The W(1)-O(3) bond length is 1.90 Å. The W(1)-O(6) bond length is 2.29 Å. The W(1)-O(7) bond length is 2.04 Å. The W(1)-O(9) bond length is 2.11 Å. In the second W site, W(2) is bonded to one O(11), one O(3), one O(4), one O(5), one O(8), and one O(9) atom to form distorted edge-sharing WO6 octahedra. The W(2)-O(11) bond length is 1.81 Å. The W(2)-O(3) bond length is 2.21 Å. The W(2)-O(4) bond length is 1.83 Å. The W(2)-O(5) bond length is 1.95 Å. The W(2)-O(8) bond length is 2.18 Å. The W(2)-O(9) bond length is 1.97 Å. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted see-saw-like geometry to one O(1), one O(5), one O(6), and one O(8) atom. The Te(1)-O(1) bond length is 1.89 Å. The Te(1)-O(5) bond length is 2.50 Å. The Te(1)-O(6) bond length is 1.93 Å. The Te(1)-O(8) bond length is 1.98 Å. In the second Te site, Te(2) is bonded in a distorted T-shaped geometry to one O(10), one O(13), and one O(7) atom. The Te(2)-O(10) bond length is 1.88 Å. The Te(2)-O(13) bond length is 1.89 Å. The Te(2)-O(7) bond length is 1.96 Å. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Nd(1), one Nd(2), and one Te(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Nd(2) and one W(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Nd(1), one W(1), and one W(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Nd(2) and one W(2) atom. In the fifth O site, O(5) is bonded to two equivalent Nd(1), one W(2), and one Te(1) atom to form edge-sharing ONd2TeW tetrahedra. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Nd(1), one W(1), and one Te(1) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Nd(2), one W(1), and one Te(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Nd(1), one W(2), and one Te(1) atom. In the ninth O site, O(9) is bonded in a distorted trigonal non-coplanar geometry to one Nd(2), one W(1), and one W(2) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to two equivalent Nd(2) and one Te(2) atom. In the eleventh O site, O(11) is bonded in a bent 150 degrees geometry to one Nd(1) and one W(2) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Nd(2) and one W(1) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal non-coplanar geometry to one Nd(1), one Nd(2), and one Te(2) atom.