W3V5O20 crystallizes in the triclinic P1 space group. There are five inequivalent V sites. In the first V site, V(1) is bonded in a 6-coordinate geometry to one O(15), one O(16), one O(4), one O(8), and two equivalent O(5) atoms. In the second V site, V(2) is bonded in a 5-coordinate geometry to one O(17), one O(18), one O(3), one O(6), and one O(7) atom. In the third V site, V(3) is bonded in a 6-coordinate geometry to one O(1), one O(14), one O(16), one O(4), and two equivalent O(10) atoms. In the fourth V site, V(4) is bonded in a 6-coordinate geometry to one O(14), one O(17), one O(2), one O(3), and two equivalent O(11) atoms. In the fifth V site, V(5) is bonded in a 6-coordinate geometry to one O(13), one O(18), one O(2), one O(3), and two equivalent O(12) atoms. There are three inequivalent W sites. In the first W site, W(1) is bonded in a 6-coordinate geometry to one O(1), one O(15), one O(16), one O(7), and two equivalent O(19) atoms. In the second W site, W(2) is bonded in a 6-coordinate geometry to one O(17), one O(18), one O(2), one O(8), and two equivalent O(20) atoms. In the third W site, W(3) is bonded in a 6-coordinate geometry to one O(1), one O(13), one O(15), one O(4), and two equivalent O(9) atoms. There are twenty inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one V(3), one W(1), and one W(3) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one V(4), one V(5), and one W(2) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one V(2), one V(4), and one V(5) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one V(1), one V(3), and one W(3) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent V(1) atoms. In the sixth O site, O(6) is bonded in a single-bond geometry to one V(2) atom. In the seventh O site, O(7) is bonded in a linear geometry to one V(2) and one W(1) atom. In the eighth O site, O(8) is bonded in a linear geometry to one V(1) and one W(2) atom. In the ninth O site, O(9) is bonded in a distorted linear geometry to two equivalent W(3) atoms. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to two equivalent V(3) atoms. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to two equivalent V(4) atoms. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to two equivalent V(5) atoms. In the thirteenth O site, O(13) is bonded in a linear geometry to one V(5) and one W(3) atom. In the fourteenth O site, O(14) is bonded in a linear geometry to one V(3) and one V(4) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal non-coplanar geometry to one V(1), one W(1), and one W(3) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal non-coplanar geometry to one V(1), one V(3), and one W(1) atom. In the seventeenth O site, O(17) is bonded in a distorted T-shaped geometry to one V(2), one V(4), and one W(2) atom. In the eighteenth O site, O(18) is bonded in a distorted T-shaped geometry to one V(2), one V(5), and one W(2) atom. In the nineteenth O site, O(19) is bonded in a distorted linear geometry to two equivalent W(1) atoms. In the twentieth O site, O(20) is bonded in a distorted linear geometry to two equivalent W(2) atoms.
W3V5O20 crystallizes in the triclinic P1 space group. There are five inequivalent V sites. In the first V site, V(1) is bonded in a 6-coordinate geometry to one O(15), one O(16), one O(4), one O(8), and two equivalent O(5) atoms. The V(1)-O(15) bond length is 2.02 Å. The V(1)-O(16) bond length is 2.01 Å. The V(1)-O(4) bond length is 2.04 Å. The V(1)-O(8) bond length is 1.97 Å. There is one shorter (1.63 Å) and one longer (2.49 Å) V(1)-O(5) bond length. In the second V site, V(2) is bonded in a 5-coordinate geometry to one O(17), one O(18), one O(3), one O(6), and one O(7) atom. The V(2)-O(17) bond length is 1.88 Å. The V(2)-O(18) bond length is 1.96 Å. The V(2)-O(3) bond length is 1.88 Å. The V(2)-O(6) bond length is 1.61 Å. The V(2)-O(7) bond length is 1.95 Å. In the third V site, V(3) is bonded in a 6-coordinate geometry to one O(1), one O(14), one O(16), one O(4), and two equivalent O(10) atoms. The V(3)-O(1) bond length is 2.01 Å. The V(3)-O(14) bond length is 1.95 Å. The V(3)-O(16) bond length is 2.10 Å. The V(3)-O(4) bond length is 2.01 Å. There is one shorter (1.64 Å) and one longer (2.48 Å) V(3)-O(10) bond length. In the fourth V site, V(4) is bonded in a 6-coordinate geometry to one O(14), one O(17), one O(2), one O(3), and two equivalent O(11) atoms. The V(4)-O(14) bond length is 1.71 Å. The V(4)-O(17) bond length is 2.32 Å. The V(4)-O(2) bond length is 1.94 Å. The V(4)-O(3) bond length is 1.97 Å. There is one shorter (1.64 Å) and one longer (2.49 Å) V(4)-O(11) bond length. In the fifth V site, V(5) is bonded in a 6-coordinate geometry to one O(13), one O(18), one O(2), one O(3), and two equivalent O(12) atoms. The V(5)-O(13) bond length is 1.98 Å. The V(5)-O(18) bond length is 2.05 Å. The V(5)-O(2) bond length is 2.02 Å. The V(5)-O(3) bond length is 2.03 Å. There is one shorter (1.64 Å) and one longer (2.49 Å) V(5)-O(12) bond length. There are three inequivalent W sites. In the first W site, W(1) is bonded in a 6-coordinate geometry to one O(1), one O(15), one O(16), one O(7), and two equivalent O(19) atoms. The W(1)-O(1) bond length is 2.16 Å. The W(1)-O(15) bond length is 1.95 Å. The W(1)-O(16) bond length is 1.92 Å. The W(1)-O(7) bond length is 1.83 Å. There is one shorter (1.78 Å) and one longer (2.35 Å) W(1)-O(19) bond length. In the second W site, W(2) is bonded in a 6-coordinate geometry to one O(17), one O(18), one O(2), one O(8), and two equivalent O(20) atoms. The W(2)-O(17) bond length is 1.95 Å. The W(2)-O(18) bond length is 1.99 Å. The W(2)-O(2) bond length is 2.07 Å. The W(2)-O(8) bond length is 1.81 Å. There is one shorter (1.78 Å) and one longer (2.35 Å) W(2)-O(20) bond length. In the third W site, W(3) is bonded in a 6-coordinate geometry to one O(1), one O(13), one O(15), one O(4), and two equivalent O(9) atoms. The W(3)-O(1) bond length is 1.96 Å. The W(3)-O(13) bond length is 1.79 Å. The W(3)-O(15) bond length is 2.19 Å. The W(3)-O(4) bond length is 1.93 Å. There is one shorter (1.78 Å) and one longer (2.34 Å) W(3)-O(9) bond length. There are twenty inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one V(3), one W(1), and one W(3) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one V(4), one V(5), and one W(2) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one V(2), one V(4), and one V(5) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one V(1), one V(3), and one W(3) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent V(1) atoms. In the sixth O site, O(6) is bonded in a single-bond geometry to one V(2) atom. In the seventh O site, O(7) is bonded in a linear geometry to one V(2) and one W(1) atom. In the eighth O site, O(8) is bonded in a linear geometry to one V(1) and one W(2) atom. In the ninth O site, O(9) is bonded in a distorted linear geometry to two equivalent W(3) atoms. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to two equivalent V(3) atoms. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to two equivalent V(4) atoms. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to two equivalent V(5) atoms. In the thirteenth O site, O(13) is bonded in a linear geometry to one V(5) and one W(3) atom. In the fourteenth O site, O(14) is bonded in a linear geometry to one V(3) and one V(4) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal non-coplanar geometry to one V(1), one W(1), and one W(3) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal non-coplanar geometry to one V(1), one V(3), and one W(1) atom. In the seventeenth O site, O(17) is bonded in a distorted T-shaped geometry to one V(2), one V(4), and one W(2) atom. In the eighteenth O site, O(18) is bonded in a distorted T-shaped geometry to one V(2), one V(5), and one W(2) atom. In the nineteenth O site, O(19) is bonded in a distorted linear geometry to two equivalent W(1) atoms. In the twentieth O site, O(20) is bonded in a distorted linear geometry to two equivalent W(2) atoms.