【摘要】 合成了五种轻稀土高氯酸盐与苯基乙酰甲基亚砜(L)的配合物RE(C1O4)·L5·2H2O(RE=La,PrNd,Sm,Eu),该系列配合物可溶于水,红外光谱及摩尔电导表明,配体通过亚砜基团上的氧原子与稀土离子配位,羰基氧不参与配位,3个高氯酸根离子有2个在内界与稀土离子配位,另1个在外界不参与配位测定了配体的磷光光谱,并对配合物进行了热重和核磁共振氢谱等表征。铕(Ⅲ)配合物荧光光谱表明,Eu3+处于无反演对称中心格位上,且该配合物的发光机理属于M→M型发光。更多还原

【Abstract】 Five solid complexes of phenyl-acetylmethylene sulfoxide（L） with light rare earth（La, Pr, Nd, Sm, Eu） were synthesized and characterized. Elemental analysis and molar conductivities show that the complexes have a composition of RE（ClO₄）₃·L₅·2H₂O; two ClO-₄ anions coordinated with rare earth ions and the other did not. IR spectra suggested that the ligand coordinated with RE 3+ by oxygen atom in sulfinyl group, and the oxygen atom in carbonyl group did not bond. The phosphorescence and 1H NMR and TG-DTA of the ligand and complexes were determind. Fluorescence spectra of Eu（Ⅲ） complex with the sulfoxide indicated that the complex has no symmetrical center. All the complexes have good solubility.更多还原