Preparation, properties and thermal decomposition of Y(III) and lanthanide(III) pyridine-2, 5-dicarboxylates
作者:Wanda Brzyska、Wanda Ożga
DOI:10.1016/s0040-6031(96)03036-5
日期:1996.10
hydrated complexes were recorded and their thermal decomposition in static air were determined. During heating the hydrated isocinchomeronates Ln2(C7H3NO4)3·nH2O (n = 6−20) lose some (Ce, Pr, DyTm) or all (Y, La, NdTm, Dy, Lu) of their crystallization water molecules in one (Y, La, PrDy, Er, Yb, Lu) or two (Ce, Ho, Tm) steps then the hydrated complexes decompose directly to the oxides (Y, Ce, PrLu)
摘要 研究了Y(III)和镧系元素(III)(LaLu)异辛丁膦酸盐的形成条件,并测定了它们在293 K下的定量组成和在水中的溶解度。记录水合配合物的红外光谱并测定它们在静态空气中的热分解。在加热过程中,水合异辛丁烯酸 Ln2(C7H3NO4)3·nH2O (n = 6−20) 失去一些(Ce、Pr、DyTm)或全部(Y、La、NdTm、Dy、Lu)它们的结晶水分子在一个(Y、La、PrDy、Er、Yb、Lu)或两个(Ce、Ho、Tm)步骤中,水合配合物直接分解为氧化物(Y、Ce、PrLu)或中间形成氧碳酸盐 Ln2O2CO3 (La)。