Materials Data on La3U2O10 by Materials Project
U2La3O10 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. U+5.50+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of U–O bond distances ranging from 2.15–2.57 Å. There are two inequivalent La3+ sites. In the first La3+ site, La3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.43–2.53 Å. In the second La3+ site, La3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are four shorter (2.49 Å) and four longer (2.50 Å) La–O bond lengths. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent U+5.50+ and two equivalent La3+ atoms to form a mixture of edge and corner-sharing OLa2U2 tetrahedra. In the second O2- site, O2- is bonded to two equivalent U+5.50+ and two La3+ atoms to form a mixture of distorted edge and corner-sharing OLa2U2 tetrahedra. In the third O2- site, O2- is bonded to one U+5.50+ and three La3+ atoms to form a mixture of distorted edge and corner-sharing OLa3U tetrahedra.