Materials Data on UH12C4N4O11 by Materials Project
UNO5N(CH3)4(NO3)2 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of eight nitric acid molecules, four tetramethylammonium molecules, and four UNO5 clusters. In each UNO5 cluster, U6+ is bonded in a distorted linear geometry to four O2- atoms. There are a spread of U–O bond distances ranging from 1.80–2.49 Å. N3- is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of N–O bond distances ranging from 1.22–1.30 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one U6+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one U6+ and one N3- atom. In the third O2- site, O2- is bonded in a distorted L-shaped geometry to one U6+ and one N3- atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one U6+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one N3- atom.