(NH4)5NH5Se2O8H(SeO4)2 is Indium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of five ammonium molecules, one H(SeO4)2 cluster, and one NH5Se2O8 cluster. In the H(SeO4)2 cluster, H(26) is bonded in a linear geometry to one O(11) and one O(12) atom. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a tetrahedral geometry to one O(1), one O(11), one O(3), and one O(9) atom. In the second Se site, Se(2) is bonded in a tetrahedral geometry to one O(10), one O(12), one O(2), and one O(4) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Se(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one Se(2) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Se(1) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one Se(2) atom. In the fifth O site, O(9) is bonded in a single-bond geometry to one Se(1) atom. In the sixth O site, O(10) is bonded in a single-bond geometry to one Se(2) atom. In the seventh O site, O(11) is bonded in a water-like geometry to one H(26) and one Se(1) atom. In the eighth O site, O(12) is bonded in a distorted water-like geometry to one H(26) and one Se(2) atom. In the NH5Se2O8 cluster, N(1) is bonded in a tetrahedral geometry to one H(1), one H(13), one H(21), and one H(9) atom. There are five inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one N(1) atom. In the second H site, H(9) is bonded in a single-bond geometry to one N(1) and one O(16) atom. In the third H site, H(13) is bonded in a single-bond geometry to one N(1) atom. In the fourth H site, H(21) is bonded in a single-bond geometry to one N(1) atom. In the fifth H site, H(25) is bonded in a linear geometry to one O(13) and one O(14) atom. There are two inequivalent Se sites. In the first Se site, Se(3) is bonded in a tetrahedral geometry to one O(13), one O(15), one O(5), and one O(7) atom. In the second Se site, Se(4) is bonded in a tetrahedral geometry to one O(14), one O(16), one O(6), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(5) is bonded in a single-bond geometry to one Se(3) atom. In the second O site, O(6) is bonded in a distorted single-bond geometry to one Se(4) atom. In the third O site, O(8) is bonded in a single-bond geometry to one Se(4) atom. In the fourth O site, O(7) is bonded in a single-bond geometry to one Se(3) atom. In the fifth O site, O(13) is bonded in a distorted water-like geometry to one H(25) and one Se(3) atom. In the sixth O site, O(14) is bonded in a water-like geometry to one H(25) and one Se(4) atom. In the seventh O site, O(15) is bonded in a distorted single-bond geometry to one Se(3) atom. In the eighth O site, O(16) is bonded in a distorted water-like geometry to one H(9) and one Se(4) atom.
(NH4)5NH5Se2O8H(SeO4)2 is Indium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of five ammonium molecules, one H(SeO4)2 cluster, and one NH5Se2O8 cluster. In the H(SeO4)2 cluster, H(26) is bonded in a linear geometry to one O(11) and one O(12) atom. The H(26)-O(11) bond length is 1.41 Å. The H(26)-O(12) bond length is 1.09 Å. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a tetrahedral geometry to one O(1), one O(11), one O(3), and one O(9) atom. The Se(1)-O(1) bond length is 1.67 Å. The Se(1)-O(11) bond length is 1.70 Å. The Se(1)-O(3) bond length is 1.67 Å. The Se(1)-O(9) bond length is 1.67 Å. In the second Se site, Se(2) is bonded in a tetrahedral geometry to one O(10), one O(12), one O(2), and one O(4) atom. The Se(2)-O(10) bond length is 1.66 Å. The Se(2)-O(12) bond length is 1.75 Å. The Se(2)-O(2) bond length is 1.66 Å. The Se(2)-O(4) bond length is 1.66 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Se(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one Se(2) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Se(1) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one Se(2) atom. In the fifth O site, O(9) is bonded in a single-bond geometry to one Se(1) atom. In the sixth O site, O(10) is bonded in a single-bond geometry to one Se(2) atom. In the seventh O site, O(11) is bonded in a water-like geometry to one H(26) and one Se(1) atom. In the eighth O site, O(12) is bonded in a distorted water-like geometry to one H(26) and one Se(2) atom. In the NH5Se2O8 cluster, N(1) is bonded in a tetrahedral geometry to one H(1), one H(13), one H(21), and one H(9) atom. The N(1)-H(1) bond length is 1.03 Å. The N(1)-H(13) bond length is 1.04 Å. The N(1)-H(21) bond length is 1.04 Å. The N(1)-H(9) bond length is 1.05 Å. There are five inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one N(1) atom. In the second H site, H(9) is bonded in a single-bond geometry to one N(1) and one O(16) atom. The H(9)-O(16) bond length is 1.72 Å. In the third H site, H(13) is bonded in a single-bond geometry to one N(1) atom. In the fourth H site, H(21) is bonded in a single-bond geometry to one N(1) atom. In the fifth H site, H(25) is bonded in a linear geometry to one O(13) and one O(14) atom. The H(25)-O(13) bond length is 1.09 Å. The H(25)-O(14) bond length is 1.42 Å. There are two inequivalent Se sites. In the first Se site, Se(3) is bonded in a tetrahedral geometry to one O(13), one O(15), one O(5), and one O(7) atom. The Se(3)-O(13) bond length is 1.75 Å. The Se(3)-O(15) bond length is 1.66 Å. The Se(3)-O(5) bond length is 1.66 Å. The Se(3)-O(7) bond length is 1.66 Å. In the second Se site, Se(4) is bonded in a tetrahedral geometry to one O(14), one O(16), one O(6), and one O(8) atom. The Se(4)-O(14) bond length is 1.70 Å. The Se(4)-O(16) bond length is 1.68 Å. The Se(4)-O(6) bond length is 1.67 Å. The Se(4)-O(8) bond length is 1.68 Å. There are eight inequivalent O sites. In the first O site, O(5) is bonded in a single-bond geometry to one Se(3) atom. In the second O site, O(6) is bonded in a distorted single-bond geometry to one Se(4) atom. In the third O site, O(8) is bonded in a single-bond geometry to one Se(4) atom. In the fourth O site, O(7) is bonded in a single-bond geometry to one Se(3) atom. In the fifth O site, O(13) is bonded in a distorted water-like geometry to one H(25) and one Se(3) atom. In the sixth O site, O(14) is bonded in a water-like geometry to one H(25) and one Se(4) atom. In the seventh O site, O(15) is bonded in a distorted single-bond geometry to one Se(3) atom. In the eighth O site, O(16) is bonded in a distorted water-like geometry to one H(9) and one Se(4) atom.