Materials Data on UH18C4N10O13 by Materials Project
UC4N8H18O7(NO3)2 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of eight nitric acid molecules and four UC4N8H18O7 clusters. In each UC4N8H18O7 cluster, U6+ is bonded in a distorted pentagonal bipyramidal geometry to seven O2- atoms. There are a spread of U–O bond distances ranging from 1.81–2.50 Å. There are four inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a trigonal planar geometry to two N+1.40- and one O2- atom. Both C–N bond lengths are 1.34 Å. The C–O bond length is 1.29 Å. In the second C4+ site, C4+ is bonded in a trigonal planar geometry to two N+1.40- and one O2- atom. Both C–N bond lengths are 1.34 Å. The C–O bond length is 1.28 Å. In the third C4+ site, C4+ is bonded in a trigonal planar geometry to two N+1.40- and one O2- atom. There is one shorter (1.34 Å) and one longer (1.35 Å) C–N bond length. The C–O bond length is 1.28 Å. In the fourth C4+ site, C4+ is bonded in a trigonal planar geometry to two N+1.40- and one O2- atom. Both C–N bond lengths are 1.34 Å. The C–O bond length is 1.28 Å. There are eight inequivalent N+1.40- sites. In the first N+1.40- site, N+1.40- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. There is one shorter (1.01 Å) and one longer (1.02 Å) N–H bond length. In the second N+1.40- site, N+1.40- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. There is one shorter (1.01 Å) and one longer (1.02 Å) N–H bond length. In the third N+1.40- site, N+1.40- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. Both N–H bond lengths are 1.02 Å. In the fourth N+1.40- site, N+1.40- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. Both N–H bond lengths are 1.02 Å. In the fifth N+1.40- site, N+1.40- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. Both N–H bond lengths are 1.02 Å. In the sixth N+1.40- site, N+1.40- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. Both N–H bond lengths are 1.02 Å. In the seventh N+1.40- site, N+1.40- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. There is one shorter (1.01 Å) and one longer (1.02 Å) N–H bond length. In the eighth N+1.40- site, N+1.40- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. There is one shorter (1.01 Å) and one longer (1.03 Å) N–H bond length. There are eighteen inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the seventh H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the ninth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the tenth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the eleventh H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the twelfth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the thirteenth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the fourteenth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the fifteenth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the sixteenth H1+ site, H1+ is bonded in a single-bond geometry to one N+1.40- atom. In the seventeenth 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 eighteenth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. There are seven 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 single-bond geometry to one U6+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to one U6+ and one C4+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one U6+ and one C4+ atom. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to one U6+ and one C4+ atom. In the sixth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one U6+ and one C4+ atom. In the seventh O2- site, O2- is bonded in a distorted water-like geometry to one U6+ and two H1+ atoms.