Materials Data on KBiH10C4O13 by Materials Project
KC4BiH6O11(H2O)2 crystallizes in the orthorhombic Fdd2 space group. The structure is three-dimensional and consists of sixteen water molecules and one KC4BiH6O11 framework. In the KC4BiH6O11 framework, K1+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are three shorter (2.78 Å) and four longer (2.82 Å) K–O bond lengths. There are two inequivalent C3+ sites. In the first C3+ site, C3+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both C–O bond lengths are 1.27 Å. In the second C3+ site, C3+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both C–O bond lengths are 1.27 Å. Bi3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Bi–O bond distances ranging from 2.46–2.51 Å. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one K1+, one C3+, and one Bi3+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one C3+ and one Bi3+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one C3+ and one Bi3+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+, one C3+, and one Bi3+ atom. In the fifth O2- site, O2- is bonded in a water-like geometry to one K1+ and two equivalent H1+ atoms. In the sixth O2- site, O2- is bonded in a water-like geometry to one K1+ and two H1+ atoms.