(NH4)3CrO8 is Indium-derived structured and crystallizes in the orthorhombic Cmc2_1 space group. The structure is zero-dimensional and consists of four ammonium molecules and four CrH8(NO4)2 clusters. In each CrH8(NO4)2 cluster, Cr(1) is bonded in a distorted hexagonal bipyramidal geometry to one O(1), one O(3), one O(5), one O(6), two equivalent O(2), and two equivalent O(4) atoms. N(1) is bonded in a tetrahedral geometry to one H(1), one H(2), one H(3), and one H(4) atom. There are four 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(2) is bonded in a single-bond geometry to one N(1) atom. In the third H site, H(3) is bonded in a single-bond geometry to one N(1) and one O(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one N(1) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Cr(1) and one O(6) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Cr(1) and one O(4) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Cr(1) and one O(5) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Cr(1), one H(3), and one O(2) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Cr(1) and one O(3) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Cr(1) and one O(1) atom.
(NH4)3CrO8 is Indium-derived structured and crystallizes in the orthorhombic Cmc2_1 space group. The structure is zero-dimensional and consists of four ammonium molecules and four CrH8(NO4)2 clusters. In each CrH8(NO4)2 cluster, Cr(1) is bonded in a distorted hexagonal bipyramidal geometry to one O(1), one O(3), one O(5), one O(6), two equivalent O(2), and two equivalent O(4) atoms. The Cr(1)-O(1) bond length is 1.97 Å. The Cr(1)-O(3) bond length is 1.97 Å. The Cr(1)-O(5) bond length is 1.90 Å. The Cr(1)-O(6) bond length is 1.92 Å. Both Cr(1)-O(2) bond lengths are 1.99 Å. Both Cr(1)-O(4) bond lengths are 1.91 Å. N(1) is bonded in a tetrahedral geometry to one H(1), one H(2), one H(3), and one H(4) atom. The N(1)-H(1) bond length is 1.03 Å. The N(1)-H(2) bond length is 1.04 Å. The N(1)-H(3) bond length is 1.06 Å. The N(1)-H(4) bond length is 1.04 Å. There are four 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(2) is bonded in a single-bond geometry to one N(1) atom. In the third H site, H(3) is bonded in a single-bond geometry to one N(1) and one O(4) atom. The H(3)-O(4) bond length is 1.70 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one N(1) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Cr(1) and one O(6) atom. The O(1)-O(6) bond length is 1.45 Å. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Cr(1) and one O(4) atom. The O(2)-O(4) bond length is 1.45 Å. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Cr(1) and one O(5) atom. The O(3)-O(5) bond length is 1.45 Å. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Cr(1), one H(3), and one O(2) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Cr(1) and one O(3) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Cr(1) and one O(1) atom.