Stabilization of CeGe3 with Ti and O featuring tetravalent Ce ions: (Ce0.85Ti0.15)Ge3O0.5

Sub-oxides with the anti-perovskite structure constitute a large part of interstitial stabilized compounds novel chemical and physical properties, especially in systems containing rare earth elements and/or early transition metal elements. A new sub-oxide compound, (Ce$_{0.85}$Ti$_{0.15}$)Ge$_3$O$_{0.5}$, is synthesized by flux growth. The compound crystallizes cubic which can be considered as an ordered vacancy variant anti-perovskite-structure or Cu$_3$Au type, space group Fm-3m (225). refined from X-ray single crystal methods. may pressure generated substitution interstitials atoms. stability RTr$_3$ (R = except Pm Sc, Tr tetrel such Si, Ge, Sn, Pb) seem to highly correlated ratio elements' radii main atomic radii. magnetic property confirms 4$^+$ valence Ce resistivity measurement shows that it metallic.