CsCrO8(NH4)2 crystallizes in the tetragonal I-42m space group. The structure consists of four ammonium molecules inside a CsCrO8 framework. In the CsCrO8 framework, Cs(1) is bonded to four equivalent O(1) and four equivalent O(2) atoms to form distorted CsO8 hexagonal bipyramids that share corners with four equivalent Cr(1)O8 hexagonal bipyramids and edges with two equivalent Cr(1)O8 hexagonal bipyramids. Cr(1) is bonded to four equivalent O(1) and four equivalent O(2) atoms to form distorted CrO8 hexagonal bipyramids that share corners with four equivalent Cs(1)O8 hexagonal bipyramids and edges with two equivalent Cs(1)O8 hexagonal bipyramids. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Cs(1), one Cr(1), and one O(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Cs(1), one Cr(1), and one O(1) atom.
CsCrO8(NH4)2 crystallizes in the tetragonal I-42m space group. The structure consists of four ammonium molecules inside a CsCrO8 framework. In the CsCrO8 framework, Cs(1) is bonded to four equivalent O(1) and four equivalent O(2) atoms to form distorted CsO8 hexagonal bipyramids that share corners with four equivalent Cr(1)O8 hexagonal bipyramids and edges with two equivalent Cr(1)O8 hexagonal bipyramids. All Cs(1)-O(1) bond lengths are 3.20 Å. All Cs(1)-O(2) bond lengths are 3.08 Å. Cr(1) is bonded to four equivalent O(1) and four equivalent O(2) atoms to form distorted CrO8 hexagonal bipyramids that share corners with four equivalent Cs(1)O8 hexagonal bipyramids and edges with two equivalent Cs(1)O8 hexagonal bipyramids. All Cr(1)-O(1) bond lengths are 1.92 Å. All Cr(1)-O(2) bond lengths are 1.96 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Cs(1), one Cr(1), and one O(2) atom. The O(1)-O(2) bond length is 1.45 Å. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Cs(1), one Cr(1), and one O(1) atom.