Materials Data on SrMgUH24C3O23 by Materials Project

Abstract

SrUC3H12O17Mg(H2O)6 is beta Np-derived structured and crystallizes in the monoclinic P2_1/m space group. The structure is zero-dimensional and consists of two magnesium;hexahydrate molecules and two SrUC3H12O17 clusters. In each SrUC3H12O17 cluster, Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.49–2.80 Å. U6+ is bonded in a distorted linear geometry to eight O2- atoms. There are a spread of U–O bond distances ranging from 1.83–2.52 Å. There are two inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.27 Å) and two longer (1.31 Å) C–O bond length. In the second C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.27–1.32 Å. There are eight 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. 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. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.97 Å. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. In the sixth 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 seventh 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 eighth 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 eleven 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 distorted single-bond geometry to one U6+ and one C4+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C4+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to one U6+ and one C4+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one Sr2+, one U6+, and one C4+ atom. In the seventh O2- site, O2- is bonded in a single-bond geometry to one C4+ atom. In the eighth O2- site, O2- is bonded in a distorted water-like geometry to one Sr2+ and two H1+ atoms. In the ninth O2- site, O2- is bonded in a distorted water-like geometry to one Sr2+ and two H1+ atoms. In the tenth O2- site, O2- is bonded in a water-like geometry to one Sr2+ and two H1+ atoms. In the eleventh O2- site, O2- is bonded in a water-like geometry to one Sr2+ and two H1+ atoms.