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80年代初,Meyer将CsCl和PrCl_3溶解在浓盐酸介质中反应,生成中间体(CsPr_2Cl_7)(hyd),然后再生HCl气氛下进行高温脱水得到CsPr_2Cl_7化合物,其反应为:CsCl+2PrCl_3·7H_2O(?)(CsPr_2Cl_7)(hyd)(?)CsPr_2Cl_7 (1)Meyer认为此反应机理亦适用于溴化物(CsPr_2Br_7)的合成.1994年,王红等人以四元体系MCl-GdCl_3-HCl(22%)-H_2O(25℃)的相关系为基础,对Meyer合成MRE_2Cl_7(M,RE=Cs,Pr; K,Dy)型化合物的合成机理从理论上给予了新的解释,但对溴化物的合成机理未见进一步研究.
In the early 1980s, Meyer reacted with CsCl and PrCl_3 in concentrated hydrochloric acid to produce intermediate (CsPr_2Cl_7) (hyd), which was then dehydrated at high temperature in HCl atmosphere to obtain CsPr_2Cl_7. The reaction was CsCl + 2PrCl_3 · 7H_2O (CsPr_2Cl_7) (hyd) (?) CsPr_2Cl_7 (1) Meyer believed that this reaction mechanism was also suitable for the synthesis of bromide (CsPr_2Br_7) .In 1994, Wang et al. (M, RE = Cs, Pr; K, Dy) based on the relationship between the molecular structure and the molecular structure of H 2 O (25 ℃), a new explanation is given theoretically. However, the mechanism of the synthesis of MRE_2Cl_7 No further study.