K2N2SO5 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 9-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(4), and three equivalent O(2) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one N(2), one S(1), and one O(3) atom. In the second N site, N(2) is bonded in a distorted bent 120 degrees geometry to one N(1) and one O(4) atom. S(1) is bonded in a tetrahedral geometry to one N(1), one O(1), and two equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(3) is bonded in a distorted single-bond geometry to four equivalent K(1) and one N(1) atom. In the second O site, O(4) is bonded in a distorted single-bond geometry to four equivalent K(1) and one N(2) atom. In the third O site, O(1) is bonded in a distorted single-bond geometry to four equivalent K(1) and one S(1) atom. In the fourth O site, O(2) is bonded in a distorted single-bond geometry to three equivalent K(1) and one S(1) atom.
K2N2SO5 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 9-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(4), and three equivalent O(2) atoms. There is one shorter (2.97 Å) and one longer (3.04 Å) K(1)-O(1) bond length. There is one shorter (2.97 Å) and one longer (2.98 Å) K(1)-O(3) bond length. There is one shorter (2.96 Å) and one longer (2.98 Å) K(1)-O(4) bond length. There are a spread of K(1)-O(2) bond distances ranging from 2.90-3.18 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one N(2), one S(1), and one O(3) atom. The N(1)-N(2) bond length is 1.31 Å. The N(1)-S(1) bond length is 1.79 Å. The N(1)-O(3) bond length is 1.31 Å. In the second N site, N(2) is bonded in a distorted bent 120 degrees geometry to one N(1) and one O(4) atom. The N(2)-O(4) bond length is 1.30 Å. S(1) is bonded in a tetrahedral geometry to one N(1), one O(1), and two equivalent O(2) atoms. The S(1)-O(1) bond length is 1.47 Å. Both S(1)-O(2) bond lengths are 1.46 Å. There are four inequivalent O sites. In the first O site, O(3) is bonded in a distorted single-bond geometry to four equivalent K(1) and one N(1) atom. In the second O site, O(4) is bonded in a distorted single-bond geometry to four equivalent K(1) and one N(2) atom. In the third O site, O(1) is bonded in a distorted single-bond geometry to four equivalent K(1) and one S(1) atom. In the fourth O site, O(2) is bonded in a distorted single-bond geometry to three equivalent K(1) and one S(1) atom.