Rietveld Refinement of the Crystal Structure of Cs(IV), ad-Electron Metal

Rietveld refinement of the crystal structure of the high-pressure phase Cs(IV) is described. Cs(IV) has a transition metal-like electronic structure that influences its open-packed crystal structure, which consists of trigonal prisms of Cs atoms. The structure was refined with reliability factorsR2F=0.050,Rwp=0.043, andRp=0.032 in space groupI41/amdwith the cesium atoms in the 4a position.