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利用对(N,N-二甲基)苯甲醛和对氨基苯甲酸合成了一种新的席夫碱Pr(Ⅲ)配合物[Pr L(Paba)_2(H_2O)_4]。L=对(N,N-二甲基)苯甲醛缩对氨基苯甲酸,Paba=对氨基苯甲酸,运用元素分析、红外光谱、X射线衍射等进行了表征。结果表明配合物属于单斜晶系,晶胞参数:a=2.10130(12)nm,b=1.4.0700(9)nm,c=1.81031(11)nm,α=90.00°,β=114.72(0)°,γ=90.00°,V=4.861.69 nm3。同时研究了该稀土配合物的荧光性质,结果表明该稀土配合物固体粉末在λex=280 nm波长激发下有较强的荧光效应。
A new Schiff base Pr (Ⅲ) complex [Pr L (Paba) 2 (H_2O) _4] was synthesized by using (N, N - dimethyl) benzaldehyde and p - aminobenzoic acid. L = (N, N-dimethyl) benzaldehyde p-aminobenzoic acid, Paba = p-aminobenzoic acid, characterized by elemental analysis, infrared spectroscopy, X-ray diffraction and the like. The results show that the complex belongs to the monoclinic system with lattice parameters of a = 2.10130 (12) nm, b = 1.4.0700 (9) nm, c = 1.81031 (11) nm, α = 90.00 °, β = 114.72 ) °, γ = 90.00 °, V = 4.861.69 nm3. The fluorescence properties of the rare earth complexes were also studied. The results show that the rare earth complex solid powders have a strong fluorescence effect when excited by λex = 280 nm.