CsIn(SeO4)2H2 crystallizes in the monoclinic C2/c space group. The structure consists of four 1333-74-0 molecules inside a CsIn(SeO4)2 framework. In the CsIn(SeO4)2 framework, Cs(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(3), and four equivalent O(2) atoms. In(1) is bonded in a distorted rectangular see-saw-like geometry to two equivalent O(3) and two equivalent O(4) atoms. Se(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(3) is bonded in a bent 120 degrees geometry to one Cs(1), one In(1), and one Se(1) atom. In the second O site, O(4) is bonded in a distorted bent 150 degrees geometry to one In(1) and one Se(1) atom. In the third O site, O(1) is bonded in a single-bond geometry to one Cs(1) and one Se(1) atom. In the fourth O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Cs(1) and one Se(1) atom.
CsIn(SeO4)2H2 crystallizes in the monoclinic C2/c space group. The structure consists of four 1333-74-0 molecules inside a CsIn(SeO4)2 framework. In the CsIn(SeO4)2 framework, Cs(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(3), and four equivalent O(2) atoms. Both Cs(1)-O(1) bond lengths are 3.33 Å. Both Cs(1)-O(3) bond lengths are 3.44 Å. There are two shorter (3.15 Å) and two longer (3.65 Å) Cs(1)-O(2) bond lengths. In(1) is bonded in a distorted rectangular see-saw-like geometry to two equivalent O(3) and two equivalent O(4) atoms. Both In(1)-O(3) bond lengths are 2.08 Å. Both In(1)-O(4) bond lengths are 2.10 Å. Se(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. The Se(1)-O(1) bond length is 1.63 Å. The Se(1)-O(2) bond length is 1.65 Å. The Se(1)-O(3) bond length is 1.74 Å. The Se(1)-O(4) bond length is 1.71 Å. There are four inequivalent O sites. In the first O site, O(3) is bonded in a bent 120 degrees geometry to one Cs(1), one In(1), and one Se(1) atom. In the second O site, O(4) is bonded in a distorted bent 150 degrees geometry to one In(1) and one Se(1) atom. In the third O site, O(1) is bonded in a single-bond geometry to one Cs(1) and one Se(1) atom. In the fourth O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Cs(1) and one Se(1) atom.