Materials Data on Ge3(BiO3)4 by Materials Project
Bi4Ge3O12 crystallizes in the cubic I-43d space group. The structure is three-dimensional. Ge4+ is bonded in a tetrahedral geometry to four equivalent O2- atoms. All Ge–O bond lengths are 1.78 Å. Bi3+ is bonded in a 6-coordinate geometry to six equivalent O2- atoms. There are three shorter (2.22 Å) and three longer (2.61 Å) Bi–O bond lengths. O2- is bonded in a 3-coordinate geometry to one Ge4+ and two equivalent Bi3+ atoms.
36 MATERIALS SCIENCE↗