Materials Data on K4H4WC8(N4O)2 by Materials Project
W(K2C4N4H2O)2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional and consists of four tungsten molecules and one K2C4N4H2O framework. In the K2C4N4H2O framework, there are three inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 5-coordinate geometry to five N3- atoms. There are a spread of K–N bond distances ranging from 2.84–3.14 Å. In the second K1+ site, K1+ is bonded in a 7-coordinate geometry to five N3- and two equivalent O2- atoms. There are a spread of K–N bond distances ranging from 2.85–3.12 Å. Both K–O bond lengths are 2.77 Å. In the third K1+ site, K1+ is bonded in a 4-coordinate geometry to three N3- and one O2- atom. There are a spread of K–N bond distances ranging from 2.94–3.07 Å. The K–O bond length is 2.81 Å. There are six inequivalent C2+ sites. In the first C2+ site, C2+ is bonded in a single-bond geometry to one N3- atom. The C–N bond length is 1.18 Å. In the second C2+ site, C2+ is bonded in a single-bond geometry to one N3- atom. The C–N bond length is 1.18 Å. In the third C2+ site, C2+ is bonded in a single-bond geometry to one N3- atom. The C–N bond length is 1.18 Å. In the fourth C2+ site, C2+ is bonded in a single-bond geometry to one N3- atom. The C–N bond length is 1.18 Å. In the fifth C2+ site, C2+ is bonded in a single-bond geometry to one N3- atom. The C–N bond length is 1.18 Å. In the sixth C2+ site, C2+ is bonded in a single-bond geometry to one N3- atom. The C–N bond length is 1.18 Å. There are six inequivalent N3- sites. In the first N3- site, N3- is bonded in a distorted single-bond geometry to one K1+ and one C2+ atom. In the second N3- site, N3- is bonded in a distorted single-bond geometry to two K1+ and one C2+ atom. In the third N3- site, N3- is bonded in a distorted trigonal planar geometry to two K1+ and one C2+ atom. In the fourth N3- site, N3- is bonded in a distorted single-bond geometry to two K1+ and one C2+ atom. In the fifth N3- site, N3- is bonded in a distorted single-bond geometry to three K1+ and one C2+ atom. In the sixth N3- site, N3- is bonded in a distorted single-bond geometry to two K1+ and one C2+ atom. There are two 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 0.98 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. O2- is bonded in a distorted water-like geometry to two K1+ and two H1+ atoms.