Li4Cr(WO4)3 is Ilmenite-derived structured and crystallizes in the monoclinic P2 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(6) atoms. In the second Li site, Li(2) is bonded in a 4-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(6) atoms. In the third Li site, Li(3) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form distorted LiO6 pentagonal pyramids that share corners with two equivalent W(1)O6 octahedra, corners with four equivalent W(2)O6 octahedra,  an edgeedge with one W(3)O6 octahedra, and edges with two equivalent Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-58°. In the fourth Li site, Li(4) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms. There are three inequivalent W sites. In the first W site, W(1) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form WO6 octahedra that share corners with two equivalent W(3)O6 octahedra, corners with two equivalent Li(3)O6 pentagonal pyramids, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles are 42°. In the second W site, W(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form WO6 octahedra that share corners with two equivalent Cr(1)O6 octahedra, corners with four equivalent Li(3)O6 pentagonal pyramids, and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles are 47°. In the third W site, W(3) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms to form WO6 octahedra that share corners with two equivalent W(1)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, and  an edgeedge with one Li(3)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles are 42°. Cr(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form CrO6 octahedra that share corners with two equivalent W(2)O6 octahedra, edges with two equivalent W(3)O6 octahedra, and edges with two equivalent Li(3)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 47°. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Li(3), one Li(4), one W(2), and one Cr(1) atom to form a mixture of distorted corner and edge-sharing OLi2CrW trigonal pyramids. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Li(1), one Li(2), one W(1), and one W(2) atom. In the third O site, O(3) is bonded to one Li(1), one Li(2), one W(3), and one Cr(1) atom to form a mixture of distorted corner and edge-sharing OLi2CrW trigonal pyramids. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Li(3), one Li(4), one W(1), and one W(2) atom. In the fifth O site, O(5) is bonded to one Li(3), one Li(4), one W(3), and one Cr(1) atom to form a mixture of distorted corner and edge-sharing OLi2CrW trigonal pyramids. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Li(1), one Li(2), one W(1), and one W(3) atom.
Li4Cr(WO4)3 is Ilmenite-derived structured and crystallizes in the monoclinic P2 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(6) atoms. Both Li(1)-O(2) bond lengths are 2.03 Å. Both Li(1)-O(3) bond lengths are 2.36 Å. Both Li(1)-O(6) bond lengths are 2.30 Å. In the second Li site, Li(2) is bonded in a 4-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(6) atoms. Both Li(2)-O(2) bond lengths are 2.60 Å. Both Li(2)-O(3) bond lengths are 1.93 Å. Both Li(2)-O(6) bond lengths are 2.34 Å. In the third Li site, Li(3) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form distorted LiO6 pentagonal pyramids that share corners with two equivalent W(1)O6 octahedra, corners with four equivalent W(2)O6 octahedra,  an edgeedge with one W(3)O6 octahedra, and edges with two equivalent Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-58°. Both Li(3)-O(1) bond lengths are 2.26 Å. Both Li(3)-O(4) bond lengths are 2.03 Å. Both Li(3)-O(5) bond lengths are 2.34 Å. In the fourth Li site, Li(4) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms. Both Li(4)-O(1) bond lengths are 2.26 Å. Both Li(4)-O(4) bond lengths are 2.54 Å. Both Li(4)-O(5) bond lengths are 1.92 Å. There are three inequivalent W sites. In the first W site, W(1) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form WO6 octahedra that share corners with two equivalent W(3)O6 octahedra, corners with two equivalent Li(3)O6 pentagonal pyramids, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles are 42°. Both W(1)-O(2) bond lengths are 1.95 Å. Both W(1)-O(4) bond lengths are 2.10 Å. Both W(1)-O(6) bond lengths are 1.99 Å. In the second W site, W(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form WO6 octahedra that share corners with two equivalent Cr(1)O6 octahedra, corners with four equivalent Li(3)O6 pentagonal pyramids, and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles are 47°. Both W(2)-O(1) bond lengths are 1.87 Å. Both W(2)-O(2) bond lengths are 2.11 Å. Both W(2)-O(4) bond lengths are 1.94 Å. In the third W site, W(3) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms to form WO6 octahedra that share corners with two equivalent W(1)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, and  an edgeedge with one Li(3)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles are 42°. Both W(3)-O(3) bond lengths are 1.93 Å. Both W(3)-O(5) bond lengths are 1.93 Å. Both W(3)-O(6) bond lengths are 1.99 Å. Cr(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form CrO6 octahedra that share corners with two equivalent W(2)O6 octahedra, edges with two equivalent W(3)O6 octahedra, and edges with two equivalent Li(3)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 47°. Both Cr(1)-O(1) bond lengths are 2.06 Å. Both Cr(1)-O(3) bond lengths are 2.01 Å. Both Cr(1)-O(5) bond lengths are 1.99 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Li(3), one Li(4), one W(2), and one Cr(1) atom to form a mixture of distorted corner and edge-sharing OLi2CrW trigonal pyramids. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Li(1), one Li(2), one W(1), and one W(2) atom. In the third O site, O(3) is bonded to one Li(1), one Li(2), one W(3), and one Cr(1) atom to form a mixture of distorted corner and edge-sharing OLi2CrW trigonal pyramids. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Li(3), one Li(4), one W(1), and one W(2) atom. In the fifth O site, O(5) is bonded to one Li(3), one Li(4), one W(3), and one Cr(1) atom to form a mixture of distorted corner and edge-sharing OLi2CrW trigonal pyramids. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Li(1), one Li(2), one W(1), and one W(3) atom.