Materials Data on Lu2Ti2O7 by Materials Project
Lu2Ti2O7 crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Lu3+ is bonded in a distorted body-centered cubic geometry to eight O2- atoms. There are two shorter (2.17 Å) and six longer (2.44 Å) Lu–O bond lengths. Ti4+ is bonded to six equivalent O2- atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles are 51°. All Ti–O bond lengths are 1.96 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Lu3+ atoms to form corner-sharing OLu4 tetrahedra. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Lu3+ and two equivalent Ti4+ atoms.
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