Materials Data on W3NO9 by Materials Project
(WO3)6N2 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional and consists of two ammonia molecules and one WO3 framework. In the WO3 framework, W5+ is bonded to six O2- atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedra tilt angles range from 0–29°. There are a spread of W–O bond distances ranging from 1.87–2.02 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent W5+ atoms. In the second O2- site, O2- is bonded in a linear geometry to two equivalent W5+ atoms.
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