DOE OSTI2020
K(O2Cl)4OsN6H18 crystallizes in the trigonal R-3 space group. The structure is two-dimensional and consists of three OsN6H18 clusters and three K(O2Cl)4 sheets oriented in the (0, 0, 1) direction. In each OsN6H18 cluster, Os3+ is bonded in an octahedral geometry to six equivalent N+0.33- atoms. All Os–N bond lengths are 2.13 Å. N+0.33- is bonded in a distorted trigonal non-coplanar geometry to one Os3+ and three H1+ atoms. All N–H bond lengths are 1.03 Å. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N+0.33- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N+0.33- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N+0.33- atom. In each K(O2Cl)4 sheet, K1+ is bonded in a body-centered cubic geometry to six equivalent O2- and two equivalent Cl1- atoms. All K–O bond lengths are 2.95 Å. Both K–Cl bond lengths are 3.44 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Cl1- atom. The O–Cl bond length is 1.46 Å. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one K1+ and one Cl1- atom. The O–Cl bond length is 1.47 Å. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a tetrahedral geometry to four O2- atoms. In the second Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one K1+ atom.