| Abstract: | The title compound, calcium pentamolybdenum titanium decaoxide, is isomorphous with the AMo5(Ti0.7Mo0.3)O10 (A = Sr and Eu) compounds. The smaller size of calcium induces a higher molybdenum content on the capping sites of the bioctahedral Mo10 clusters, leading to more Mo11 and Mo12 clusters in the crystal structure. The oxygen framework derives from the stacking of close‐packed layers along the a direction in the …ABAC… sequence. The Ca2+ ions occupy large cavities which result from the fusion of two cubooctahedra and are surrounded by ten O atoms. The Ti4+ ion is octahedrally coordinated by the O atoms. |
