Materials Data on KCS2N(O2F)2 by Materials Project
(K(SO2)2)2N2(CF2)2 crystallizes in the orthorhombic Pna2_1 space group. The structure is three-dimensional and consists of eight ammonia molecules, eight difluoromethane molecules, and one K(SO2)2 framework. In the K(SO2)2 framework, there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of K–O bond distances ranging from 2.78–3.03 Å. In the second K1+ site, K1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of K–O bond distances ranging from 2.80–3.00 Å. There are four inequivalent S2+ sites. In the first S2+ site, S2+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both S–O bond lengths are 1.45 Å. In the second S2+ site, S2+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both S–O bond lengths are 1.45 Å. In the third S2+ site, S2+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.45 Å) and one longer (1.46 Å) S–O bond length. In the fourth S2+ site, S2+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both S–O bond lengths are 1.45 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one S2+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one S2+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one S2+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one S2+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one S2+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one S2+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one S2+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one S2+ atom.