La8Ni4O17 crystallizes in the triclinic P1 space group. There are eight inequivalent La sites. In the first La site, La(1) is bonded in a distorted single-bond geometry to one O(1), one O(14), one O(4), one O(5), and one O(6) atom. In the second La site, La(2) is bonded in a 1-coordinate geometry to one O(12), one O(14), one O(3), one O(5), and one O(6) atom. In the third La site, La(3) is bonded in a 1-coordinate geometry to one O(1), one O(3), one O(5), one O(6), and one O(9) atom. In the fourth La site, La(4) is bonded in a 3-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(8), and one O(9) atom. In the fifth La site, La(5) is bonded in a 1-coordinate geometry to one O(11), one O(14), one O(5), one O(6), and one O(9) atom. In the sixth La site, La(6) is bonded in a 5-coordinate geometry to one O(12), one O(14), one O(15), one O(5), and one O(6) atom. In the seventh La site, La(7) is bonded in a 1-coordinate geometry to one O(1), one O(11), one O(12), one O(14), and one O(9) atom. In the eighth La site, La(8) is bonded in a 2-coordinate geometry to one O(1), one O(13), one O(14), one O(15), and one O(9) atom. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 6-coordinate geometry to one O(10), one O(15), one O(4), one O(5), one O(7), and one O(8) atom. In the second Ni site, Ni(2) is bonded in a distorted rectangular see-saw-like geometry to one O(10), one O(11), one O(3), one O(6), one O(7), and one O(9) atom. In the third Ni site, Ni(3) is bonded in a rectangular see-saw-like geometry to one O(1), one O(11), one O(16), one O(17), and one O(4) atom. In the fourth Ni site, Ni(4) is bonded in a 5-coordinate geometry to one O(14), one O(15), one O(16), one O(17), and one O(3) atom. There are seventeen inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one La(1), one La(3), one La(4), one La(7), one La(8), and one Ni(3) atom. In the second O site, O(2) is bonded in a 1-coordinate geometry to one La(4) atom. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one La(2), one La(3), one Ni(2), and one Ni(4) atom. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one La(1), one La(4), one Ni(1), and one Ni(3) atom. In the fifth O site, O(5) is bonded in a 7-coordinate geometry to one La(1), one La(2), one La(3), one La(4), one La(5), one La(6), and one Ni(1) atom. In the sixth O site, O(6) is bonded in a 6-coordinate geometry to one La(1), one La(2), one La(3), one La(5), one La(6), and one Ni(2) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to one Ni(1) and one Ni(2) atom. In the eighth O site, O(8) is bonded in a 1-coordinate geometry to one La(4) and one Ni(1) atom. In the ninth O site, O(9) is bonded in a 6-coordinate geometry to one La(3), one La(4), one La(5), one La(7), one La(8), and one Ni(2) atom. In the tenth O site, O(10) is bonded in a 2-coordinate geometry to one Ni(1) and one Ni(2) atom. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one La(5), one La(7), one Ni(2), and one Ni(3) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one La(2), one La(6), and one La(7) atom. In the thirteenth O site, O(13) is bonded in a distorted single-bond geometry to one La(8) atom. In the fourteenth O site, O(14) is bonded in a 7-coordinate geometry to one La(1), one La(2), one La(5), one La(6), one La(7), one La(8), and one Ni(4) atom. In the fifteenth O site, O(15) is bonded in a rectangular see-saw-like geometry to one La(6), one La(8), one Ni(1), and one Ni(4) atom. In the sixteenth O site, O(16) is bonded in a 2-coordinate geometry to one Ni(3) and one Ni(4) atom. In the seventeenth O site, O(17) is bonded in a 2-coordinate geometry to one Ni(3) and one Ni(4) atom.
La8Ni4O17 crystallizes in the triclinic P1 space group. There are eight inequivalent La sites. In the first La site, La(1) is bonded in a distorted single-bond geometry to one O(1), one O(14), one O(4), one O(5), and one O(6) atom. The La(1)-O(1) bond length is 2.68 Å. The La(1)-O(14) bond length is 2.99 Å. The La(1)-O(4) bond length is 1.81 Å. The La(1)-O(5) bond length is 2.88 Å. The La(1)-O(6) bond length is 2.69 Å. In the second La site, La(2) is bonded in a 1-coordinate geometry to one O(12), one O(14), one O(3), one O(5), and one O(6) atom. The La(2)-O(12) bond length is 2.37 Å. The La(2)-O(14) bond length is 2.59 Å. The La(2)-O(3) bond length is 1.90 Å. The La(2)-O(5) bond length is 2.82 Å. The La(2)-O(6) bond length is 2.94 Å. In the third La site, La(3) is bonded in a 1-coordinate geometry to one O(1), one O(3), one O(5), one O(6), and one O(9) atom. The La(3)-O(1) bond length is 2.62 Å. The La(3)-O(3) bond length is 2.07 Å. The La(3)-O(5) bond length is 3.34 Å. The La(3)-O(6) bond length is 2.74 Å. The La(3)-O(9) bond length is 2.90 Å. In the fourth La site, La(4) is bonded in a 3-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(8), and one O(9) atom. The La(4)-O(1) bond length is 3.14 Å. The La(4)-O(2) bond length is 1.63 Å. The La(4)-O(4) bond length is 2.09 Å. The La(4)-O(5) bond length is 2.95 Å. The La(4)-O(8) bond length is 1.90 Å. The La(4)-O(9) bond length is 2.58 Å. In the fifth La site, La(5) is bonded in a 1-coordinate geometry to one O(11), one O(14), one O(5), one O(6), and one O(9) atom. The La(5)-O(11) bond length is 2.03 Å. The La(5)-O(14) bond length is 2.80 Å. The La(5)-O(5) bond length is 2.64 Å. The La(5)-O(6) bond length is 3.08 Å. The La(5)-O(9) bond length is 2.86 Å. In the sixth La site, La(6) is bonded in a 5-coordinate geometry to one O(12), one O(14), one O(15), one O(5), and one O(6) atom. The La(6)-O(12) bond length is 2.29 Å. The La(6)-O(14) bond length is 2.62 Å. The La(6)-O(15) bond length is 1.93 Å. The La(6)-O(5) bond length is 2.77 Å. The La(6)-O(6) bond length is 2.62 Å. In the seventh La site, La(7) is bonded in a 1-coordinate geometry to one O(1), one O(11), one O(12), one O(14), and one O(9) atom. The La(7)-O(1) bond length is 2.98 Å. The La(7)-O(11) bond length is 1.93 Å. The La(7)-O(12) bond length is 2.56 Å. The La(7)-O(14) bond length is 3.14 Å. The La(7)-O(9) bond length is 2.95 Å. In the eighth La site, La(8) is bonded in a 2-coordinate geometry to one O(1), one O(13), one O(14), one O(15), and one O(9) atom. The La(8)-O(1) bond length is 2.50 Å. The La(8)-O(13) bond length is 1.63 Å. The La(8)-O(14) bond length is 3.12 Å. The La(8)-O(15) bond length is 2.14 Å. The La(8)-O(9) bond length is 2.45 Å. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 6-coordinate geometry to one O(10), one O(15), one O(4), one O(5), one O(7), and one O(8) atom. The Ni(1)-O(10) bond length is 2.16 Å. The Ni(1)-O(15) bond length is 1.97 Å. The Ni(1)-O(4) bond length is 1.90 Å. The Ni(1)-O(5) bond length is 2.40 Å. The Ni(1)-O(7) bond length is 1.85 Å. The Ni(1)-O(8) bond length is 2.29 Å. In the second Ni site, Ni(2) is bonded in a distorted rectangular see-saw-like geometry to one O(10), one O(11), one O(3), one O(6), one O(7), and one O(9) atom. The Ni(2)-O(10) bond length is 1.81 Å. The Ni(2)-O(11) bond length is 1.95 Å. The Ni(2)-O(3) bond length is 1.99 Å. The Ni(2)-O(6) bond length is 2.53 Å. The Ni(2)-O(7) bond length is 1.98 Å. The Ni(2)-O(9) bond length is 2.61 Å. In the third Ni site, Ni(3) is bonded in a rectangular see-saw-like geometry to one O(1), one O(11), one O(16), one O(17), and one O(4) atom. The Ni(3)-O(1) bond length is 2.64 Å. The Ni(3)-O(11) bond length is 1.93 Å. The Ni(3)-O(16) bond length is 1.78 Å. The Ni(3)-O(17) bond length is 1.90 Å. The Ni(3)-O(4) bond length is 2.00 Å. In the fourth Ni site, Ni(4) is bonded in a 5-coordinate geometry to one O(14), one O(15), one O(16), one O(17), and one O(3) atom. The Ni(4)-O(14) bond length is 2.38 Å. The Ni(4)-O(15) bond length is 2.01 Å. The Ni(4)-O(16) bond length is 2.01 Å. The Ni(4)-O(17) bond length is 2.18 Å. The Ni(4)-O(3) bond length is 1.92 Å. There are seventeen inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one La(1), one La(3), one La(4), one La(7), one La(8), and one Ni(3) atom. In the second O site, O(2) is bonded in a 1-coordinate geometry to one La(4) atom. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one La(2), one La(3), one Ni(2), and one Ni(4) atom. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one La(1), one La(4), one Ni(1), and one Ni(3) atom. In the fifth O site, O(5) is bonded in a 7-coordinate geometry to one La(1), one La(2), one La(3), one La(4), one La(5), one La(6), and one Ni(1) atom. In the sixth O site, O(6) is bonded in a 6-coordinate geometry to one La(1), one La(2), one La(3), one La(5), one La(6), and one Ni(2) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to one Ni(1) and one Ni(2) atom. In the eighth O site, O(8) is bonded in a 1-coordinate geometry to one La(4) and one Ni(1) atom. In the ninth O site, O(9) is bonded in a 6-coordinate geometry to one La(3), one La(4), one La(5), one La(7), one La(8), and one Ni(2) atom. In the tenth O site, O(10) is bonded in a 2-coordinate geometry to one Ni(1) and one Ni(2) atom. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one La(5), one La(7), one Ni(2), and one Ni(3) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one La(2), one La(6), and one La(7) atom. In the thirteenth O site, O(13) is bonded in a distorted single-bond geometry to one La(8) atom. In the fourteenth O site, O(14) is bonded in a 7-coordinate geometry to one La(1), one La(2), one La(5), one La(6), one La(7), one La(8), and one Ni(4) atom. In the fifteenth O site, O(15) is bonded in a rectangular see-saw-like geometry to one La(6), one La(8), one Ni(1), and one Ni(4) atom. In the sixteenth O site, O(16) is bonded in a 2-coordinate geometry to one Ni(3) and one Ni(4) atom. In the seventeenth O site, O(17) is bonded in a 2-coordinate geometry to one Ni(3) and one Ni(4) atom.