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自Padersen首次报道了冠醚及其金属配合物以来,冠醚对金属离子特殊的配位性质引起人们极大的重视。近廿年来,有关这类化合物的研究发展很快。二苯并-18-冠-6(DB18C6)作为最早合成出的冠醚,它与金属离子的配位作用已被广泛研究。Cassol等曾合成出硝酸稀土与DB18C6的配合物,但对硝酸铈(Ⅲ)与DB18C6固体配合物的性质、晶体结构和分子
Since Padersen first reported the crown ether and its metal complexes, crown ether on the special coordination properties of metal ions caused great attention. Nearly 20 years, the research on these compounds has developed rapidly. Dibenzo-18-crown-6 (DB18C6) as the earliest synthesized crown ether, its coordination with metal ions has been widely studied. Cassol et al. Have synthesized a complex of rare earth nitrate and DB18C6, but the properties, crystal structure and molecular structure of the solid complex of cerium (III) nitrate and DB18C6