The Novel Method of Synthesis of Solid Solutions LnxCa1-xF2+x (Ln=Yb, Nd) Using Beta-cyclodextrin

In this study we propose the novel method of synthesis of solid solutions LnxCa1-xF2+x (Ln = Yb, Nd) by decomposition of metal trifluoroacetate hydrates with beta-cyclodextrin. It is important to mention that the decomposition of the similar reaction mixture without beta-cyclodextrin does not induce the formation of such compounds. In this case, the formation of individual fluorides takes place. The metal fluorides were studied by XRD and X-ray fluorescence. The advantages of the method proposed are as follows: relatively low temperature of the synthesis, simplicity of a change in the composition of the prepared compounds, and a homogeneous distribution of the elements in products.