METHOD FOR THE PRODUCTION OF WATER-FREE RARE EARTH METAL HALOGENIDES, SYNTHESIS MIXTURES CONTAINING

文件类型：PDF文档
文件大小：840K
The invention relates to a method wherein rare earth metal oxides are reacted with halogenation agents of general formula (1), wherein M= Si, Ge, Sn, Ti, Zr, Hf; Hal= CI, Br, I; X1, X2, X3 = independently from each other CI, Br, I, H, alkoxy (-OR), wherein R represents an organo radical having 1-20 atoms, alkyl having 1-20 C atoms or aryl with 6-20 C atoms, wherein the alkyl or arly radicals can include one or several halogen substituents selected from the group of F, CI, Br or I; in an aprotic polar solvent. The invention also relates to synthesis mixtures containing water-free rare earth metal halogenides and the use thereof