在4000-650 cm -1范围内获得了铜铁和一些稀土高铁的红外光谱。给出了各种吸收带的分配。结果表明,在复杂的形成过程中,NO的延伸频率降低而形变频率增加,而CN和NN的延伸频率变化不大,这表明复合物的形成是通过NO基团的氧发生的。各种稀土高铁酸盐和钠盐的光谱比较表明,从铜高铁酸钠到镧铜高铁酸盐的共价有变化,而在各种稀土铜高铁酸盐中无多大变化。
Thermal decomposition of some rare earth metal cupferrates and neocupferrates
作者:Wesley W. Wendlandt
DOI:10.1016/0003-2670(59)80151-3
日期:1959.1
Abstract The thermaldecomposition of the eupferrates and neocupferrates of europium, terbium, dysprosium, holmium, erbium, and ytterbium was studied on the thermobalance. The metal chelates possessed poor thermal stability as well as a pronounced tendency to Coprecipitate reagent. The minimum oxide level temperatures for the metal cupferrates were : Eu, 570°; Tb, 540°; Dy, 550°; Ho, 610°; Er, 550°