Materials Data on KScO2 by Materials Project
KScO2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. K1+ is bonded in a 6-coordinate geometry to six equivalent O2- atoms. All K–O bond lengths are 2.73 Å. Sc3+ is bonded to six equivalent O2- atoms to form edge-sharing ScO6 octahedra. All Sc–O bond lengths are 2.17 Å. O2- is bonded to three equivalent K1+ and three equivalent Sc3+ atoms to form a mixture of distorted edge and corner-sharing OK3Sc3 octahedra. The corner-sharing octahedral tilt angles are 0°.
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