摘要
Early in the 1980 s, Meyer dissolved appropriate amounts of CsCl and PrCl<sub>3</sub>·7H<sub>2</sub>O ina small amount of concentrated hydrochloric acid for getting CsPr<sub>2</sub>Cl<sub>7</sub>（hyd.）, and then thesample CsPr<sub>2</sub>Cl<sub>7</sub>（hyd.）was dehydrated by heating in HCl stream at high temperature. Thereaction equation is as follows:
基金
Project supported by the National Natural Science Foundation of China.
