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KAgO2 crystallizes in the orthorhombic Pmmm space group. The structure is three-dimensional. K1+ is bonded in a body-centered cubic geometry to eight equivalent O2- atoms. All K–O bond lengths are 2.89 Å. Ag3+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Ag–O bond lengths are 2.05 Å. O2- is bonded in a 6-coordinate geometry to four equivalent K1+ and two equivalent Ag3+ atoms.
KAgO2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. K1+ is bonded in a 6-coordinate geometry to six equivalent O2- atoms. There are two shorter (2.70 Å) and four longer (2.88 Å) K–O bond lengths. Ag3+ is bonded in a rectangular see-saw-like geometry to four equivalent O2- atoms. There are two shorter (2.03 Å) and two longer (2.04 Å) Ag–O bond lengths. O2- is bonded to three equivalent K1+ and two equivalent Ag3+ atoms to form a mixture of distorted edge, face, and corner-sharing OK3Ag2 trigonal bipyramids.
KAgO2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. K1+ is bonded in a 6-coordinate geometry to six equivalent O2- atoms. There are a spread of K–O bond distances ranging from 2.75–3.00 Å. Ag3+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Ag–O bond lengths are 2.04 Å. O2- is bonded to three equivalent K1+ and two equivalent Ag3+ atoms to form a mixture of distorted corner, edge, and face-sharing OK3Ag2 trigonal bipyramids.