Materials Data on K2Ge2O3 by Materials Project
K2Ge2O3 crystallizes in the cubic I2_13 space group. The structure is three-dimensional. K1+ is bonded in a 6-coordinate geometry to six equivalent O2- atoms. There are three shorter (2.86 Å) and three longer (2.95 Å) K–O bond lengths. Ge2+ is bonded in a distorted trigonal non-coplanar geometry to three equivalent O2- atoms. All Ge–O bond lengths are 1.91 Å. O2- is bonded to four equivalent K1+ and two equivalent Ge2+ atoms to form a mixture of distorted face, edge, and corner-sharing OK4Ge2 octahedra. The corner-sharing octahedral tilt angles are 60°.
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