Materials Data on AlAgO2 by Materials Project

Abstract

AgAlO2 crystallizes in the trigonal R3m space group. The structure is three-dimensional. Ag1+ is bonded in a 1-coordinate geometry to four O2- atoms. There are one shorter (2.19 Å) and three longer (2.59 Å) Ag–O bond lengths. Al3+ is bonded to six O2- atoms to form edge-sharing AlO6 octahedra. There is three shorter (1.92 Å) and three longer (1.96 Å) Al–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to one Ag1+ and three equivalent Al3+ atoms to form distorted corner-sharing OAl3Ag tetrahedra. In the second O2- site, O2- is bonded in a 3-coordinate geometry to three equivalent Ag1+ and three equivalent Al3+ atoms.