稀土配合物的研究(Ⅲ)——稀土离子与HPMBP及α-亚硝基-β-萘酚三元配合物的制备及表征

Studies on the Rare Earth Coordination Compounds (Ⅲ)——Preparation and Characterization of Ternary Complexes of Rare Earths with HPMBP and 1-Nitroso-2-Naphthol

自从1959年Iensen将1-苯基-3-甲基-4-苯甲酰基-吡唑酮-5(HPMBP)推荐为一种新型β-二酮类萃取剂以来,用它作为酸性螯合配体而合成的稀土三元配合物为数不少,但所涉及的中性配体多为膦氧单齿配体和以氮为配位原子的联吡啶及二氮杂菲类双齿配体。α-亚硝基-β-萘酚(NN)作为酸性配体已被广泛地用于过渡元素的溶剂萃取,但用它作为中性配体的稀土三元配合物尚未见报道。本文报道了14种稀土离子与HPMBP及NN的二元固态配合物的合成并对其红外光谱、质子核磁共振谱进行了研究。

This paper reports the preparation and properties of the complexes of rare earths with 1-phenyl- 3-metlfyl-4-benz6yl-pyrazolone-5 (HPMBP) and 1-nitroso-2-naphthol (NN).Compounds of general formulas RE(PMBP)3(NN) (whereRE=La, Pr,Nd,Sm,Lu and Y)were obtained and characterized by elemental ana-lysis,IR spectra and 1H NMR.All fourteen-complexes obtained are gray-violet crystal. They are soluble in ethanol, acetone and benzene, but insoluble in water. In atmosphere, these complexes are stable at room temperture.