K2Mo2H8O15 crystallizes in the triclinic P-1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 9-coordinate geometry to one O(10), one O(14), one O(2), one O(3), one O(4), one O(7), one O(9), and two equivalent O(5) atoms. In the second K site, K(2) is bonded in a 10-coordinate geometry to one O(10), one O(11), one O(12), one O(13), one O(14), one O(15), one O(6), one O(9), and two equivalent O(1) atoms. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a 7-coordinate geometry to one O(11), one O(12), one O(13), one O(15), one O(6), one O(8), and one O(9) atom. In the second Mo site, Mo(2) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(11), one O(14), one O(3), one O(5), and one O(7) atom. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(7) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(4) atom. In the fourth H site, H(4) is bonded in a distorted single-bond geometry to one O(7) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(12) and one O(14) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(2) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(12) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(4) atom. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent K(2), one Mo(2), and one O(14) atom. In the second O site, O(2) is bonded in a distorted water-like geometry to one K(1), one H(1), and one H(6) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one K(1), one Mo(2), and one O(5) atom. In the fourth O site, O(4) is bonded in a water-like geometry to one K(1), one H(3), and one H(8) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to two equivalent K(1), one Mo(2), and one O(3) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one K(2), one Mo(1), and one O(15) atom. In the seventh O site, O(7) is bonded in a water-like geometry to one K(1), one Mo(2), one H(2), and one H(4) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one Mo(1) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one K(1), one K(2), one Mo(1), and one O(13) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one Mo(2) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one K(2), one Mo(1), and one Mo(2) atom. In the twelfth O site, O(12) is bonded in a water-like geometry to one K(2), one Mo(1), one H(5), and one H(7) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one K(2), one Mo(1), and one O(9) atom. In the fourteenth O site, O(14) is bonded in a 5-coordinate geometry to one K(1), one K(2), one Mo(2), one H(5), and one O(1) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one K(2), one Mo(1), and one O(6) atom.
K2Mo2H8O15 crystallizes in the triclinic P-1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 9-coordinate geometry to one O(10), one O(14), one O(2), one O(3), one O(4), one O(7), one O(9), and two equivalent O(5) atoms. The K(1)-O(10) bond length is 2.94 Å. The K(1)-O(14) bond length is 3.00 Å. The K(1)-O(2) bond length is 2.86 Å. The K(1)-O(3) bond length is 2.80 Å. The K(1)-O(4) bond length is 2.91 Å. The K(1)-O(7) bond length is 2.86 Å. The K(1)-O(9) bond length is 3.22 Å. There is one shorter (2.85 Å) and one longer (3.06 Å) K(1)-O(5) bond length. In the second K site, K(2) is bonded in a 10-coordinate geometry to one O(10), one O(11), one O(12), one O(13), one O(14), one O(15), one O(6), one O(9), and two equivalent O(1) atoms. The K(2)-O(10) bond length is 2.68 Å. The K(2)-O(11) bond length is 2.78 Å. The K(2)-O(12) bond length is 2.95 Å. The K(2)-O(13) bond length is 3.14 Å. The K(2)-O(14) bond length is 3.02 Å. The K(2)-O(15) bond length is 2.73 Å. The K(2)-O(6) bond length is 3.07 Å. The K(2)-O(9) bond length is 2.83 Å. There is one shorter (2.90 Å) and one longer (3.07 Å) K(2)-O(1) bond length. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a 7-coordinate geometry to one O(11), one O(12), one O(13), one O(15), one O(6), one O(8), and one O(9) atom. The Mo(1)-O(11) bond length is 1.94 Å. The Mo(1)-O(12) bond length is 2.51 Å. The Mo(1)-O(13) bond length is 2.00 Å. The Mo(1)-O(15) bond length is 2.00 Å. The Mo(1)-O(6) bond length is 1.99 Å. The Mo(1)-O(8) bond length is 1.74 Å. The Mo(1)-O(9) bond length is 1.99 Å. In the second Mo site, Mo(2) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(11), one O(14), one O(3), one O(5), and one O(7) atom. The Mo(2)-O(1) bond length is 1.99 Å. The Mo(2)-O(10) bond length is 1.74 Å. The Mo(2)-O(11) bond length is 1.97 Å. The Mo(2)-O(14) bond length is 2.03 Å. The Mo(2)-O(3) bond length is 1.98 Å. The Mo(2)-O(5) bond length is 1.98 Å. The Mo(2)-O(7) bond length is 2.42 Å. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(2) atom. The H(1)-O(2) bond length is 0.98 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(7) atom. The H(2)-O(7) bond length is 0.99 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(4) atom. The H(3)-O(4) bond length is 0.98 Å. In the fourth H site, H(4) is bonded in a distorted single-bond geometry to one O(7) atom. The H(4)-O(7) bond length is 1.01 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(12) and one O(14) atom. The H(5)-O(12) bond length is 1.00 Å. The H(5)-O(14) bond length is 1.82 Å. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(2) atom. The H(6)-O(2) bond length is 1.00 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(12) atom. The H(7)-O(12) bond length is 0.98 Å. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(4) atom. The H(8)-O(4) bond length is 0.99 Å. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent K(2), one Mo(2), and one O(14) atom. The O(1)-O(14) bond length is 1.48 Å. In the second O site, O(2) is bonded in a distorted water-like geometry to one K(1), one H(1), and one H(6) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one K(1), one Mo(2), and one O(5) atom. The O(3)-O(5) bond length is 1.48 Å. In the fourth O site, O(4) is bonded in a water-like geometry to one K(1), one H(3), and one H(8) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to two equivalent K(1), one Mo(2), and one O(3) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one K(2), one Mo(1), and one O(15) atom. The O(6)-O(15) bond length is 1.48 Å. In the seventh O site, O(7) is bonded in a water-like geometry to one K(1), one Mo(2), one H(2), and one H(4) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one Mo(1) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one K(1), one K(2), one Mo(1), and one O(13) atom. The O(9)-O(13) bond length is 1.48 Å. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one Mo(2) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one K(2), one Mo(1), and one Mo(2) atom. In the twelfth O site, O(12) is bonded in a water-like geometry to one K(2), one Mo(1), one H(5), and one H(7) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one K(2), one Mo(1), and one O(9) atom. In the fourteenth O site, O(14) is bonded in a 5-coordinate geometry to one K(1), one K(2), one Mo(2), one H(5), and one O(1) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one K(2), one Mo(1), and one O(6) atom.