Rb2LiNd2(WO4)4 crystallizes in the triclinic P1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 11-coordinate geometry to one Li(1), one O(1), one O(10), one O(13), one O(14), one O(16), one O(3), one O(5), one O(6), one O(7), and one O(9) atom. In the second Rb site, Rb(2) is bonded in a 11-coordinate geometry to one Li(1), one O(11), one O(12), one O(13), one O(14), one O(15), one O(2), one O(4), one O(5), one O(6), and one O(8) atom. Li(1) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(2), one O(13), one O(15), one O(3), and one O(5) atom. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 7-coordinate geometry to one O(11), one O(12), one O(15), one O(2), one O(4), one O(7), and one O(8) atom. In the second Nd site, Nd(2) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(16), one O(3), one O(4), one O(7), and one O(9) atom. There are four inequivalent W sites. In the first W site, W(1) is bonded to one O(11), one O(14), one O(15), one O(16), one O(5), and one O(7) atom to form a mixture of distorted corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 35-45°. In the second W site, W(2) is bonded to one O(1), one O(10), one O(12), one O(14), one O(5), and one O(8) atom to form a mixture of corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 35-45°. In the third W site, W(3) is bonded to one O(11), one O(13), one O(16), one O(4), one O(6), and one O(9) atom to form a mixture of distorted corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 38-44°. In the fourth W site, W(4) is bonded to one O(1), one O(13), one O(2), one O(3), one O(6), and one O(8) atom to form a mixture of corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 38-44°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Rb(1), one Nd(2), one W(2), and one W(4) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Rb(2), one Nd(1), and one W(4) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Rb(1), one Li(1), one Nd(2), and one W(4) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Rb(2), one Nd(1), one Nd(2), and one W(3) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Rb(1), one Rb(2), one Li(1), one W(1), and one W(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(2), one W(3), and one W(4) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Rb(1), one Nd(1), one Nd(2), and one W(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Rb(2), one Nd(1), one W(2), and one W(4) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Rb(1), one Nd(2), and one W(3) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Rb(1), one Nd(2), and one W(2) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Rb(2), one Nd(1), one W(1), and one W(3) atom. In the twelfth O site, O(12) is bonded in a 2-coordinate geometry to one Rb(2), one Nd(1), and one W(2) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one Rb(1), one Rb(2), one Li(1), one W(3), and one W(4) atom. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(2), one W(1), and one W(2) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Rb(2), one Li(1), one Nd(1), and one W(1) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal non-coplanar geometry to one Rb(1), one Nd(2), one W(1), and one W(3) atom.
Rb2LiNd2(WO4)4 crystallizes in the triclinic P1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 11-coordinate geometry to one Li(1), one O(1), one O(10), one O(13), one O(14), one O(16), one O(3), one O(5), one O(6), one O(7), and one O(9) atom. The Rb(1)-Li(1) bond length is 2.93 Å. The Rb(1)-O(1) bond length is 3.09 Å. The Rb(1)-O(10) bond length is 2.90 Å. The Rb(1)-O(13) bond length is 3.15 Å. The Rb(1)-O(14) bond length is 2.96 Å. The Rb(1)-O(16) bond length is 3.30 Å. The Rb(1)-O(3) bond length is 3.08 Å. The Rb(1)-O(5) bond length is 3.32 Å. The Rb(1)-O(6) bond length is 3.01 Å. The Rb(1)-O(7) bond length is 2.99 Å. The Rb(1)-O(9) bond length is 2.90 Å. In the second Rb site, Rb(2) is bonded in a 11-coordinate geometry to one Li(1), one O(11), one O(12), one O(13), one O(14), one O(15), one O(2), one O(4), one O(5), one O(6), and one O(8) atom. The Rb(2)-Li(1) bond length is 2.81 Å. The Rb(2)-O(11) bond length is 3.16 Å. The Rb(2)-O(12) bond length is 3.11 Å. The Rb(2)-O(13) bond length is 3.33 Å. The Rb(2)-O(14) bond length is 2.92 Å. The Rb(2)-O(15) bond length is 2.96 Å. The Rb(2)-O(2) bond length is 2.80 Å. The Rb(2)-O(4) bond length is 3.10 Å. The Rb(2)-O(5) bond length is 3.29 Å. The Rb(2)-O(6) bond length is 2.90 Å. The Rb(2)-O(8) bond length is 3.14 Å. Li(1) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(2), one O(13), one O(15), one O(3), and one O(5) atom. The Li(1)-O(13) bond length is 2.38 Å. The Li(1)-O(15) bond length is 1.96 Å. The Li(1)-O(3) bond length is 1.92 Å. The Li(1)-O(5) bond length is 2.07 Å. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 7-coordinate geometry to one O(11), one O(12), one O(15), one O(2), one O(4), one O(7), and one O(8) atom. The Nd(1)-O(11) bond length is 2.38 Å. The Nd(1)-O(12) bond length is 2.38 Å. The Nd(1)-O(15) bond length is 2.31 Å. The Nd(1)-O(2) bond length is 2.41 Å. The Nd(1)-O(4) bond length is 2.46 Å. The Nd(1)-O(7) bond length is 2.72 Å. The Nd(1)-O(8) bond length is 2.45 Å. In the second Nd site, Nd(2) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(16), one O(3), one O(4), one O(7), and one O(9) atom. The Nd(2)-O(1) bond length is 2.44 Å. The Nd(2)-O(10) bond length is 2.36 Å. The Nd(2)-O(16) bond length is 2.36 Å. The Nd(2)-O(3) bond length is 2.42 Å. The Nd(2)-O(4) bond length is 2.68 Å. The Nd(2)-O(7) bond length is 2.46 Å. The Nd(2)-O(9) bond length is 2.39 Å. There are four inequivalent W sites. In the first W site, W(1) is bonded to one O(11), one O(14), one O(15), one O(16), one O(5), and one O(7) atom to form a mixture of distorted corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 35-45°. The W(1)-O(11) bond length is 2.15 Å. The W(1)-O(14) bond length is 2.05 Å. The W(1)-O(15) bond length is 1.94 Å. The W(1)-O(16) bond length is 2.04 Å. The W(1)-O(5) bond length is 2.09 Å. The W(1)-O(7) bond length is 1.88 Å. In the second W site, W(2) is bonded to one O(1), one O(10), one O(12), one O(14), one O(5), and one O(8) atom to form a mixture of corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 35-45°. The W(2)-O(1) bond length is 2.15 Å. The W(2)-O(10) bond length is 1.84 Å. The W(2)-O(12) bond length is 1.84 Å. The W(2)-O(14) bond length is 1.95 Å. The W(2)-O(5) bond length is 1.99 Å. The W(2)-O(8) bond length is 2.09 Å. In the third W site, W(3) is bonded to one O(11), one O(13), one O(16), one O(4), one O(6), and one O(9) atom to form a mixture of distorted corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 38-44°. The W(3)-O(11) bond length is 1.97 Å. The W(3)-O(13) bond length is 1.90 Å. The W(3)-O(16) bond length is 2.10 Å. The W(3)-O(4) bond length is 1.88 Å. The W(3)-O(6) bond length is 2.16 Å. The W(3)-O(9) bond length is 1.84 Å. In the fourth W site, W(4) is bonded to one O(1), one O(13), one O(2), one O(3), one O(6), and one O(8) atom to form a mixture of corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 38-44°. The W(4)-O(1) bond length is 2.01 Å. The W(4)-O(13) bond length is 2.16 Å. The W(4)-O(2) bond length is 1.84 Å. The W(4)-O(3) bond length is 1.88 Å. The W(4)-O(6) bond length is 1.87 Å. The W(4)-O(8) bond length is 2.09 Å. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Rb(1), one Nd(2), one W(2), and one W(4) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Rb(2), one Nd(1), and one W(4) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Rb(1), one Li(1), one Nd(2), and one W(4) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Rb(2), one Nd(1), one Nd(2), and one W(3) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Rb(1), one Rb(2), one Li(1), one W(1), and one W(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(2), one W(3), and one W(4) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Rb(1), one Nd(1), one Nd(2), and one W(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Rb(2), one Nd(1), one W(2), and one W(4) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Rb(1), one Nd(2), and one W(3) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Rb(1), one Nd(2), and one W(2) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Rb(2), one Nd(1), one W(1), and one W(3) atom. In the twelfth O site, O(12) is bonded in a 2-coordinate geometry to one Rb(2), one Nd(1), and one W(2) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one Rb(1), one Rb(2), one Li(1), one W(3), and one W(4) atom. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(2), one W(1), and one W(2) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Rb(2), one Li(1), one Nd(1), and one W(1) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal non-coplanar geometry to one Rb(1), one Nd(2), one W(1), and one W(3) atom.