V6CuO15 crystallizes in the triclinic P1 space group. There are twelve inequivalent V sites. In the first V site, V(1) is bonded in a 6-coordinate geometry to one O(12), one O(14), one O(2), one O(26), one O(5), and one O(6) atom. In the second V site, V(2) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(13), one O(25), one O(5), and one O(6) atom. In the third V site, V(3) is bonded in a 6-coordinate geometry to one O(13), one O(14), one O(21), one O(5), one O(8), and one O(9) atom. In the fourth V site, V(4) is bonded in a 6-coordinate geometry to one O(10), one O(13), one O(14), one O(22), one O(6), and one O(7) atom. In the fifth V site, V(5) is bonded in a 5-coordinate geometry to one O(11), one O(15), one O(16), one O(17), and one O(3) atom. In the sixth V site, V(6) is bonded in a 5-coordinate geometry to one O(12), one O(15), one O(16), one O(18), and one O(4) atom. In the seventh V site, V(7) is bonded in a 5-coordinate geometry to one O(15), one O(17), one O(18), one O(22), and one O(28) atom. In the eighth V site, V(8) is bonded in a 5-coordinate geometry to one O(16), one O(17), one O(18), one O(21), and one O(27) atom. In the ninth V site, V(9) is bonded in a 6-coordinate geometry to one O(11), one O(19), one O(20), one O(23), one O(25), and one O(7) atom. In the tenth V site, V(10) is bonded in a 6-coordinate geometry to one O(12), one O(19), one O(20), one O(24), one O(26), and one O(8) atom. In the eleventh V site, V(11) is bonded in a 6-coordinate geometry to one O(19), one O(22), one O(25), one O(26), one O(30), and one O(6) atom. In the twelfth V site, V(12) is bonded in a 6-coordinate geometry to one O(20), one O(21), one O(25), one O(26), one O(29), and one O(5) atom. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 4-coordinate geometry to one O(27), one O(29), one O(3), and one O(9) atom. In the second Cu site, Cu(2) is bonded in a 4-coordinate geometry to one O(2), one O(23), one O(28), and one O(4) atom. There are thirty inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one V(2) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one V(1) and one Cu(2) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one V(5) and one Cu(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one V(6) and one Cu(2) atom. In the fifth O site, O(5) is bonded to one V(1), one V(12), one V(2), and one V(3) atom to form a mixture of distorted corner and edge-sharing OV4 trigonal pyramids. In the sixth O site, O(6) is bonded to one V(1), one V(11), one V(2), and one V(4) atom to form a mixture of distorted corner and edge-sharing OV4 trigonal pyramids. In the seventh O site, O(7) is bonded in a linear geometry to one V(4) and one V(9) atom. In the eighth O site, O(8) is bonded in a linear geometry to one V(10) and one V(3) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one V(3) and one Cu(1) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one V(4) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one V(2), one V(5), and one V(9) atom. In the twelfth O site, O(12) is bonded in a trigonal planar geometry to one V(1), one V(10), and one V(6) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal non-coplanar geometry to one V(2), one V(3), and one V(4) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal non-coplanar geometry to one V(1), 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(5), one V(6), and one V(7) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal non-coplanar geometry to one V(5), one V(6), and one V(8) atom. In the seventeenth O site, O(17) is bonded in a distorted trigonal non-coplanar geometry to one V(5), one V(7), and one V(8) atom. In the eighteenth O site, O(18) is bonded in a distorted trigonal non-coplanar geometry to one V(6), one V(7), and one V(8) atom. In the nineteenth O site, O(19) is bonded in a distorted trigonal non-coplanar geometry to one V(10), one V(11), and one V(9) atom. In the twentieth O site, O(20) is bonded in a distorted trigonal non-coplanar geometry to one V(10), one V(12), and one V(9) atom. In the twenty-first O site, O(21) is bonded in a trigonal planar geometry to one V(12), one V(3), and one V(8) atom. In the twenty-second O site, O(22) is bonded in a distorted trigonal planar geometry to one V(11), one V(4), and one V(7) atom. In the twenty-third O site, O(23) is bonded in a 2-coordinate geometry to one V(9) and one Cu(2) atom. In the twenty-fourth O site, O(24) is bonded in a single-bond geometry to one V(10) atom. In the twenty-fifth O site, O(25) is bonded in a 4-coordinate geometry to one V(11), one V(12), one V(2), and one V(9) atom. In the twenty-sixth O site, O(26) is bonded to one V(1), one V(10), one V(11), and one V(12) atom to form distorted edge-sharing OV4 trigonal pyramids. In the twenty-seventh O site, O(27) is bonded in a distorted single-bond geometry to one V(8) and one Cu(1) atom. In the twenty-eighth O site, O(28) is bonded in a distorted bent 120 degrees geometry to one V(7) and one Cu(2) atom. In the twenty-ninth O site, O(29) is bonded in a bent 150 degrees geometry to one V(12) and one Cu(1) atom. In the thirtieth O site, O(30) is bonded in a single-bond geometry to one V(11) atom.
V6CuO15 crystallizes in the triclinic P1 space group. There are twelve inequivalent V sites. In the first V site, V(1) is bonded in a 6-coordinate geometry to one O(12), one O(14), one O(2), one O(26), one O(5), and one O(6) atom. The V(1)-O(12) bond length is 2.04 Å. The V(1)-O(14) bond length is 2.04 Å. The V(1)-O(2) bond length is 1.67 Å. The V(1)-O(26) bond length is 2.20 Å. The V(1)-O(5) bond length is 1.97 Å. The V(1)-O(6) bond length is 1.95 Å. In the second V site, V(2) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(13), one O(25), one O(5), and one O(6) atom. The V(2)-O(1) bond length is 1.61 Å. The V(2)-O(11) bond length is 1.97 Å. The V(2)-O(13) bond length is 2.04 Å. The V(2)-O(25) bond length is 2.37 Å. The V(2)-O(5) bond length is 1.89 Å. The V(2)-O(6) bond length is 1.85 Å. In the third V site, V(3) is bonded in a 6-coordinate geometry to one O(13), one O(14), one O(21), one O(5), one O(8), and one O(9) atom. The V(3)-O(13) bond length is 1.92 Å. The V(3)-O(14) bond length is 1.93 Å. The V(3)-O(21) bond length is 2.17 Å. The V(3)-O(5) bond length is 2.32 Å. The V(3)-O(8) bond length is 1.80 Å. The V(3)-O(9) bond length is 1.66 Å. In the fourth V site, V(4) is bonded in a 6-coordinate geometry to one O(10), one O(13), one O(14), one O(22), one O(6), and one O(7) atom. The V(4)-O(10) bond length is 1.63 Å. The V(4)-O(13) bond length is 1.92 Å. The V(4)-O(14) bond length is 1.91 Å. The V(4)-O(22) bond length is 2.17 Å. The V(4)-O(6) bond length is 2.28 Å. The V(4)-O(7) bond length is 1.83 Å. In the fifth V site, V(5) is bonded in a 5-coordinate geometry to one O(11), one O(15), one O(16), one O(17), and one O(3) atom. The V(5)-O(11) bond length is 1.82 Å. The V(5)-O(15) bond length is 1.92 Å. The V(5)-O(16) bond length is 1.91 Å. The V(5)-O(17) bond length is 1.99 Å. The V(5)-O(3) bond length is 1.66 Å. In the sixth V site, V(6) is bonded in a 5-coordinate geometry to one O(12), one O(15), one O(16), one O(18), and one O(4) atom. The V(6)-O(12) bond length is 1.80 Å. The V(6)-O(15) bond length is 1.94 Å. The V(6)-O(16) bond length is 1.94 Å. The V(6)-O(18) bond length is 2.01 Å. The V(6)-O(4) bond length is 1.63 Å. In the seventh V site, V(7) is bonded in a 5-coordinate geometry to one O(15), one O(17), one O(18), one O(22), and one O(28) atom. The V(7)-O(15) bond length is 1.99 Å. The V(7)-O(17) bond length is 1.92 Å. The V(7)-O(18) bond length is 1.91 Å. The V(7)-O(22) bond length is 1.83 Å. The V(7)-O(28) bond length is 1.66 Å. In the eighth V site, V(8) is bonded in a 5-coordinate geometry to one O(16), one O(17), one O(18), one O(21), and one O(27) atom. The V(8)-O(16) bond length is 2.01 Å. The V(8)-O(17) bond length is 1.95 Å. The V(8)-O(18) bond length is 1.94 Å. The V(8)-O(21) bond length is 1.79 Å. The V(8)-O(27) bond length is 1.63 Å. In the ninth V site, V(9) is bonded in a 6-coordinate geometry to one O(11), one O(19), one O(20), one O(23), one O(25), and one O(7) atom. The V(9)-O(11) bond length is 2.19 Å. The V(9)-O(19) bond length is 1.91 Å. The V(9)-O(20) bond length is 1.93 Å. The V(9)-O(23) bond length is 1.66 Å. The V(9)-O(25) bond length is 2.27 Å. The V(9)-O(7) bond length is 1.79 Å. In the tenth V site, V(10) is bonded in a 6-coordinate geometry to one O(12), one O(19), one O(20), one O(24), one O(26), and one O(8) atom. The V(10)-O(12) bond length is 2.14 Å. The V(10)-O(19) bond length is 1.92 Å. The V(10)-O(20) bond length is 1.91 Å. The V(10)-O(24) bond length is 1.62 Å. The V(10)-O(26) bond length is 2.32 Å. The V(10)-O(8) bond length is 1.84 Å. In the eleventh V site, V(11) is bonded in a 6-coordinate geometry to one O(19), one O(22), one O(25), one O(26), one O(30), and one O(6) atom. The V(11)-O(19) bond length is 2.03 Å. The V(11)-O(22) bond length is 1.97 Å. The V(11)-O(25) bond length is 1.85 Å. The V(11)-O(26) bond length is 1.89 Å. The V(11)-O(30) bond length is 1.61 Å. The V(11)-O(6) bond length is 2.35 Å. In the twelfth V site, V(12) is bonded in a 6-coordinate geometry to one O(20), one O(21), one O(25), one O(26), one O(29), and one O(5) atom. The V(12)-O(20) bond length is 2.04 Å. The V(12)-O(21) bond length is 2.04 Å. The V(12)-O(25) bond length is 1.95 Å. The V(12)-O(26) bond length is 1.98 Å. The V(12)-O(29) bond length is 1.67 Å. The V(12)-O(5) bond length is 2.21 Å. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 4-coordinate geometry to one O(27), one O(29), one O(3), and one O(9) atom. The Cu(1)-O(27) bond length is 2.38 Å. The Cu(1)-O(29) bond length is 1.83 Å. The Cu(1)-O(3) bond length is 1.83 Å. The Cu(1)-O(9) bond length is 2.17 Å. In the second Cu site, Cu(2) is bonded in a 4-coordinate geometry to one O(2), one O(23), one O(28), and one O(4) atom. The Cu(2)-O(2) bond length is 1.84 Å. The Cu(2)-O(23) bond length is 2.19 Å. The Cu(2)-O(28) bond length is 1.83 Å. The Cu(2)-O(4) bond length is 2.39 Å. There are thirty inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one V(2) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one V(1) and one Cu(2) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one V(5) and one Cu(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one V(6) and one Cu(2) atom. In the fifth O site, O(5) is bonded to one V(1), one V(12), one V(2), and one V(3) atom to form a mixture of distorted corner and edge-sharing OV4 trigonal pyramids. In the sixth O site, O(6) is bonded to one V(1), one V(11), one V(2), and one V(4) atom to form a mixture of distorted corner and edge-sharing OV4 trigonal pyramids. In the seventh O site, O(7) is bonded in a linear geometry to one V(4) and one V(9) atom. In the eighth O site, O(8) is bonded in a linear geometry to one V(10) and one V(3) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one V(3) and one Cu(1) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one V(4) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one V(2), one V(5), and one V(9) atom. In the twelfth O site, O(12) is bonded in a trigonal planar geometry to one V(1), one V(10), and one V(6) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal non-coplanar geometry to one V(2), one V(3), and one V(4) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal non-coplanar geometry to one V(1), 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(5), one V(6), and one V(7) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal non-coplanar geometry to one V(5), one V(6), and one V(8) atom. In the seventeenth O site, O(17) is bonded in a distorted trigonal non-coplanar geometry to one V(5), one V(7), and one V(8) atom. In the eighteenth O site, O(18) is bonded in a distorted trigonal non-coplanar geometry to one V(6), one V(7), and one V(8) atom. In the nineteenth O site, O(19) is bonded in a distorted trigonal non-coplanar geometry to one V(10), one V(11), and one V(9) atom. In the twentieth O site, O(20) is bonded in a distorted trigonal non-coplanar geometry to one V(10), one V(12), and one V(9) atom. In the twenty-first O site, O(21) is bonded in a trigonal planar geometry to one V(12), one V(3), and one V(8) atom. In the twenty-second O site, O(22) is bonded in a distorted trigonal planar geometry to one V(11), one V(4), and one V(7) atom. In the twenty-third O site, O(23) is bonded in a 2-coordinate geometry to one V(9) and one Cu(2) atom. In the twenty-fourth O site, O(24) is bonded in a single-bond geometry to one V(10) atom. In the twenty-fifth O site, O(25) is bonded in a 4-coordinate geometry to one V(11), one V(12), one V(2), and one V(9) atom. In the twenty-sixth O site, O(26) is bonded to one V(1), one V(10), one V(11), and one V(12) atom to form distorted edge-sharing OV4 trigonal pyramids. In the twenty-seventh O site, O(27) is bonded in a distorted single-bond geometry to one V(8) and one Cu(1) atom. In the twenty-eighth O site, O(28) is bonded in a distorted bent 120 degrees geometry to one V(7) and one Cu(2) atom. In the twenty-ninth O site, O(29) is bonded in a bent 150 degrees geometry to one V(12) and one Cu(1) atom. In the thirtieth O site, O(30) is bonded in a single-bond geometry to one V(11) atom.