Materials Data on MgU2(PO11)2 by Materials Project

Dataset · Sat May 02 04:00:00 EDT 2020

DOI:https://doi.org/10.17188/1662644· OSTI ID:1662644

MgO6(UPO6)2(O2)2 crystallizes in the monoclinic P2_1/c space group. The structure is two-dimensional and consists of four hydrogen peroxide molecules; two MgO6 clusters; and two UPO6 sheets oriented in the (0, 1, 0) direction. In each MgO6 cluster, Mg is bonded in a distorted square co-planar geometry to four O atoms. There are two shorter (1.96 Å) and two longer (2.46 Å) Mg–O bond lengths. There are three inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one Mg atom. In the second O site, O is bonded in a bent 120 degrees geometry to one Mg and one O atom. The O–O bond length is 1.24 Å. In the third O site, O is bonded in a single-bond geometry to one O atom. In each UPO6 sheet, U is bonded to six O atoms to form UO6 octahedra that share corners with four equivalent PO4 tetrahedra. There are a spread of U–O bond distances ranging from 1.81–2.27 Å. P is bonded to four O atoms to form PO4 tetrahedra that share corners with four equivalent UO6 octahedra. The corner-sharing octahedra tilt angles range from 36–38°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. There are six inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one U atom. In the second O site, O is bonded in a single-bond geometry to one U atom. In the third O site, O is bonded in a bent 150 degrees geometry to one U and one P atom. In the fourth O site, O is bonded in a bent 150 degrees geometry to one U and one P atom. In the fifth O site, O is bonded in a bent 150 degrees geometry to one U and one P atom. In the sixth O site, O is bonded in a bent 150 degrees geometry to one U and one P atom.

• Research Organization: LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
• Contributing Organization: The Materials Project; MIT; UC Berkeley; Duke; U Louvain
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 1662644
• Report Number(s): mp-1197247
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
Mg-O-P-U
MgU2(PO11)2
crystal structure