Na2CdO2 crystallizes in the triclinic P1 space group. There are sixteen inequivalent Na sites. In the first Na site, Na(1) is bonded in a 2-coordinate geometry to one Cd(1) and one O(14) atom. In the second Na site, Na(2) is bonded in a 1-coordinate geometry to one O(11), one O(2), one O(7), and one O(8) atom. In the third Na site, Na(3) is bonded in a 3-coordinate geometry to one Cd(4), one O(3), and one O(6) atom. In the fourth Na site, Na(4) is bonded in a 1-coordinate geometry to one Cd(5), one O(10), one O(12), and one O(3) atom. In the fifth Na site, Na(5) is bonded in a 3-coordinate geometry to one O(11), one O(3), and one O(4) atom. In the sixth Na site, Na(6) is bonded in a 3-coordinate geometry to one O(10), one O(13), and one O(14) atom. In the seventh Na site, Na(7) is bonded in a 1-coordinate geometry to one O(12), one O(15), and one O(5) atom. In the eighth Na site, Na(8) is bonded in a 4-coordinate geometry to one O(14), one O(15), one O(16), and one O(6) atom. In the ninth Na site, Na(9) is bonded in a 2-coordinate geometry to one Cd(7), one O(14), and one O(3) atom. In the tenth Na site, Na(10) is bonded in a 3-coordinate geometry to one O(12), one O(16), and one O(7) atom. In the eleventh Na site, Na(11) is bonded in a 2-coordinate geometry to one O(16), one O(4), and one O(9) atom. In the twelfth Na site, Na(12) is bonded in a 4-coordinate geometry to one O(15), one O(2), one O(6), and one O(8) atom. In the thirteenth Na site, Na(13) is bonded in a 6-coordinate geometry to one Cd(5), one Cd(8), one O(1), one O(10), one O(16), and one O(2) atom. In the fourteenth Na site, Na(14) is bonded in a 1-coordinate geometry to one O(1), one O(11), and one O(4) atom. In the fifteenth Na site, Na(15) is bonded in a 3-coordinate geometry to one O(13), one O(2), and one O(6) atom. In the sixteenth Na site, Na(16) is bonded in a 3-coordinate geometry to one O(12), one O(3), and one O(5) atom. There are eight inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 4-coordinate geometry to one Na(1), one O(13), one O(14), and one O(5) atom. In the second Cd site, Cd(2) is bonded in a 4-coordinate geometry to one O(1), one O(10), one O(14), and one O(8) atom. In the third Cd site, Cd(3) is bonded in a 1-coordinate geometry to one O(2) and one O(3) atom. In the fourth Cd site, Cd(4) is bonded in a 1-coordinate geometry to one Na(3), one O(3), and one O(6) atom. In the fifth Cd site, Cd(5) is bonded in a 3-coordinate geometry to one Na(13), one Na(4), one O(10), and one O(3) atom. In the sixth Cd site, Cd(6) is bonded in a 2-coordinate geometry to one O(11), one O(13), and one O(2) atom. In the seventh Cd site, Cd(7) is bonded in a 4-coordinate geometry to one Na(9), one O(14), one O(5), and one O(9) atom. In the eighth Cd site, Cd(8) is bonded in a distorted single-bond geometry to one Na(13) and one O(2) atom. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Na(13), one Na(14), and one Cd(2) atom. In the second O site, O(2) is bonded in a 7-coordinate geometry to one Na(12), one Na(13), one Na(15), one Na(2), one Cd(3), one Cd(6), and one Cd(8) atom. In the third O site, O(3) is bonded in a 8-coordinate geometry to one Na(16), one Na(3), one Na(4), one Na(5), one Na(9), one Cd(3), one Cd(4), and one Cd(5) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Na(11), one Na(14), and one Na(5) atom. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Na(16), one Na(7), one Cd(1), and one Cd(7) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Na(12), one Na(15), one Na(3), one Na(8), and one Cd(4) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Na(10) and one Na(2) atom. In the eighth O site, O(8) is bonded in a distorted T-shaped geometry to one Na(12), one Na(2), and one Cd(2) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Na(11) and one Cd(7) atom. In the tenth O site, O(10) is bonded in a 5-coordinate geometry to one Na(13), one Na(4), one Na(6), one Cd(2), and one Cd(5) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Na(14), one Na(2), one Na(5), and one Cd(6) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Na(10), one Na(16), one Na(4), and one Na(7) atom. In the thirteenth O site, O(13) is bonded in a square co-planar geometry to one Na(15), one Na(6), one Cd(1), and one Cd(6) atom. In the fourteenth O site, O(14) is bonded in a 7-coordinate geometry to one Na(1), one Na(6), one Na(8), one Na(9), one Cd(1), one Cd(2), and one Cd(7) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Na(12), one Na(7), and one Na(8) atom. In the sixteenth O site, O(16) is bonded in a 4-coordinate geometry to one Na(10), one Na(11), one Na(13), and one Na(8) atom.
Na2CdO2 crystallizes in the triclinic P1 space group. There are sixteen inequivalent Na sites. In the first Na site, Na(1) is bonded in a 2-coordinate geometry to one Cd(1) and one O(14) atom. The Na(1)-Cd(1) bond length is 1.96 Å. The Na(1)-O(14) bond length is 1.95 Å. In the second Na site, Na(2) is bonded in a 1-coordinate geometry to one O(11), one O(2), one O(7), and one O(8) atom. The Na(2)-O(11) bond length is 2.61 Å. The Na(2)-O(2) bond length is 2.18 Å. The Na(2)-O(7) bond length is 1.69 Å. The Na(2)-O(8) bond length is 2.32 Å. In the third Na site, Na(3) is bonded in a 3-coordinate geometry to one Cd(4), one O(3), and one O(6) atom. The Na(3)-Cd(4) bond length is 1.26 Å. The Na(3)-O(3) bond length is 2.00 Å. The Na(3)-O(6) bond length is 1.83 Å. In the fourth Na site, Na(4) is bonded in a 1-coordinate geometry to one Cd(5), one O(10), one O(12), and one O(3) atom. The Na(4)-Cd(5) bond length is 1.40 Å. The Na(4)-O(10) bond length is 2.30 Å. The Na(4)-O(12) bond length is 2.84 Å. The Na(4)-O(3) bond length is 2.04 Å. In the fifth Na site, Na(5) is bonded in a 3-coordinate geometry to one O(11), one O(3), and one O(4) atom. The Na(5)-O(11) bond length is 2.40 Å. The Na(5)-O(3) bond length is 1.87 Å. The Na(5)-O(4) bond length is 2.60 Å. In the sixth Na site, Na(6) is bonded in a 3-coordinate geometry to one O(10), one O(13), and one O(14) atom. The Na(6)-O(10) bond length is 1.58 Å. The Na(6)-O(13) bond length is 2.18 Å. The Na(6)-O(14) bond length is 2.52 Å. In the seventh Na site, Na(7) is bonded in a 1-coordinate geometry to one O(12), one O(15), and one O(5) atom. The Na(7)-O(12) bond length is 2.15 Å. The Na(7)-O(15) bond length is 1.49 Å. The Na(7)-O(5) bond length is 2.57 Å. In the eighth Na site, Na(8) is bonded in a 4-coordinate geometry to one O(14), one O(15), one O(16), and one O(6) atom. The Na(8)-O(14) bond length is 2.63 Å. The Na(8)-O(15) bond length is 2.10 Å. The Na(8)-O(16) bond length is 2.36 Å. The Na(8)-O(6) bond length is 2.31 Å. In the ninth Na site, Na(9) is bonded in a 2-coordinate geometry to one Cd(7), one O(14), and one O(3) atom. The Na(9)-Cd(7) bond length is 2.06 Å. The Na(9)-O(14) bond length is 2.23 Å. The Na(9)-O(3) bond length is 2.66 Å. In the tenth Na site, Na(10) is bonded in a 3-coordinate geometry to one O(12), one O(16), and one O(7) atom. The Na(10)-O(12) bond length is 2.36 Å. The Na(10)-O(16) bond length is 2.63 Å. The Na(10)-O(7) bond length is 1.93 Å. In the eleventh Na site, Na(11) is bonded in a 2-coordinate geometry to one O(16), one O(4), and one O(9) atom. The Na(11)-O(16) bond length is 2.71 Å. The Na(11)-O(4) bond length is 2.22 Å. The Na(11)-O(9) bond length is 2.03 Å. In the twelfth Na site, Na(12) is bonded in a 4-coordinate geometry to one O(15), one O(2), one O(6), and one O(8) atom. The Na(12)-O(15) bond length is 2.36 Å. The Na(12)-O(2) bond length is 2.57 Å. The Na(12)-O(6) bond length is 2.06 Å. The Na(12)-O(8) bond length is 2.26 Å. In the thirteenth Na site, Na(13) is bonded in a 6-coordinate geometry to one Cd(5), one Cd(8), one O(1), one O(10), one O(16), and one O(2) atom. The Na(13)-Cd(5) bond length is 2.39 Å. The Na(13)-Cd(8) bond length is 2.36 Å. The Na(13)-O(1) bond length is 2.20 Å. The Na(13)-O(10) bond length is 2.27 Å. The Na(13)-O(16) bond length is 2.11 Å. The Na(13)-O(2) bond length is 2.49 Å. In the fourteenth Na site, Na(14) is bonded in a 1-coordinate geometry to one O(1), one O(11), and one O(4) atom. The Na(14)-O(1) bond length is 1.46 Å. The Na(14)-O(11) bond length is 2.63 Å. The Na(14)-O(4) bond length is 2.18 Å. In the fifteenth Na site, Na(15) is bonded in a 3-coordinate geometry to one O(13), one O(2), and one O(6) atom. The Na(15)-O(13) bond length is 2.17 Å. The Na(15)-O(2) bond length is 2.61 Å. The Na(15)-O(6) bond length is 1.57 Å. In the sixteenth Na site, Na(16) is bonded in a 3-coordinate geometry to one O(12), one O(3), and one O(5) atom. The Na(16)-O(12) bond length is 2.67 Å. The Na(16)-O(3) bond length is 2.23 Å. The Na(16)-O(5) bond length is 2.43 Å. There are eight inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 4-coordinate geometry to one Na(1), one O(13), one O(14), and one O(5) atom. The Cd(1)-O(13) bond length is 2.38 Å. The Cd(1)-O(14) bond length is 2.24 Å. The Cd(1)-O(5) bond length is 2.62 Å. In the second Cd site, Cd(2) is bonded in a 4-coordinate geometry to one O(1), one O(10), one O(14), and one O(8) atom. The Cd(2)-O(1) bond length is 2.33 Å. The Cd(2)-O(10) bond length is 2.01 Å. The Cd(2)-O(14) bond length is 2.17 Å. The Cd(2)-O(8) bond length is 2.39 Å. In the third Cd site, Cd(3) is bonded in a 1-coordinate geometry to one O(2) and one O(3) atom. The Cd(3)-O(2) bond length is 1.88 Å. The Cd(3)-O(3) bond length is 2.47 Å. In the fourth Cd site, Cd(4) is bonded in a 1-coordinate geometry to one Na(3), one O(3), and one O(6) atom. The Cd(4)-O(3) bond length is 1.96 Å. The Cd(4)-O(6) bond length is 2.15 Å. In the fifth Cd site, Cd(5) is bonded in a 3-coordinate geometry to one Na(13), one Na(4), one O(10), and one O(3) atom. The Cd(5)-O(10) bond length is 1.79 Å. The Cd(5)-O(3) bond length is 1.89 Å. In the sixth Cd site, Cd(6) is bonded in a 2-coordinate geometry to one O(11), one O(13), and one O(2) atom. The Cd(6)-O(11) bond length is 2.79 Å. The Cd(6)-O(13) bond length is 2.38 Å. The Cd(6)-O(2) bond length is 2.31 Å. In the seventh Cd site, Cd(7) is bonded in a 4-coordinate geometry to one Na(9), one O(14), one O(5), and one O(9) atom. The Cd(7)-O(14) bond length is 1.98 Å. The Cd(7)-O(5) bond length is 2.70 Å. The Cd(7)-O(9) bond length is 1.63 Å. In the eighth Cd site, Cd(8) is bonded in a distorted single-bond geometry to one Na(13) and one O(2) atom. The Cd(8)-O(2) bond length is 1.77 Å. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Na(13), one Na(14), and one Cd(2) atom. In the second O site, O(2) is bonded in a 7-coordinate geometry to one Na(12), one Na(13), one Na(15), one Na(2), one Cd(3), one Cd(6), and one Cd(8) atom. In the third O site, O(3) is bonded in a 8-coordinate geometry to one Na(16), one Na(3), one Na(4), one Na(5), one Na(9), one Cd(3), one Cd(4), and one Cd(5) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Na(11), one Na(14), and one Na(5) atom. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Na(16), one Na(7), one Cd(1), and one Cd(7) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Na(12), one Na(15), one Na(3), one Na(8), and one Cd(4) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Na(10) and one Na(2) atom. In the eighth O site, O(8) is bonded in a distorted T-shaped geometry to one Na(12), one Na(2), and one Cd(2) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Na(11) and one Cd(7) atom. In the tenth O site, O(10) is bonded in a 5-coordinate geometry to one Na(13), one Na(4), one Na(6), one Cd(2), and one Cd(5) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Na(14), one Na(2), one Na(5), and one Cd(6) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Na(10), one Na(16), one Na(4), and one Na(7) atom. In the thirteenth O site, O(13) is bonded in a square co-planar geometry to one Na(15), one Na(6), one Cd(1), and one Cd(6) atom. In the fourteenth O site, O(14) is bonded in a 7-coordinate geometry to one Na(1), one Na(6), one Na(8), one Na(9), one Cd(1), one Cd(2), and one Cd(7) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Na(12), one Na(7), and one Na(8) atom. In the sixteenth O site, O(16) is bonded in a 4-coordinate geometry to one Na(10), one Na(11), one Na(13), and one Na(8) atom.