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用固态反应法制备了M (Pr,Ag)替代的La2 12型化合物 ,发现La2 -xSrxCa0 .5Pr0 .5Cu2 O6,La1.6Pr0 .4Ca1-xPrxCu2 O6和La2 -xPrxCa0 .5Sr0 .5Cu2 O6单相范围的x值分别是 0 .4～ 1.1,0～ 0 .5和 0～ 1.5 .一些新的La2 12型化合物La2 -xAgxCaCu2 O6和La2 Ca1-xAgxCu2 O6也被制备出来了 ,它们的结构经鉴定属于具有I4/mmm空间群的La2 12铜镧镨氧化物超导体的结构
La2-xSrxCa0 .5Pr0.5Cu2O6, La1.6Pr0.4Ca1-xPrxCu2O6 and La2-xPrxCa0.5Sr0.5Cu2O6 were prepared by the solid-state reaction method in the presence of La (superscript 2 + The values of x are from 0.4 to 1.1, from 0 to 0.5 and from 0 to 1.5, respectively. Some new La2-xAgxCaCu2O6 and La2Ca1-xAgxCu2O6 have also been prepared and their structures have been identified as having the Structure of La2 12 Cu-La-Praseodymium Oxide Superconductor in I4 / mmm Space Group