Two lanthanide-based MOFs (Ln-MOFs) were synthesized by reaction of Eu(III) or Tb(III) perchlorates with mixed dicarboxylates of 3,5-pdc and 1,2-bdc (3,5-H₂pdc = 3,5-pyridinedicarboxylic acid; 1,2-H₂bdc = 1,2-benzenedicarboxylic acid) by hydrothermal method. The chemical formulas of the two complexes were [Eu₂(3,5-pdc)(1,2-bdc)₂(H₂O)₄]_n (1) and {[Tb₂(3,5-pdc)(1,2-bdc)₂(H₂O)₄]·2H₂O}_n (2). IR spectra and element analyses were tested to characterize the two compounds. The crystal structures were determined by X-ray single crystal diffraction. MOF 1 was 3D porous network structure but MOF 2 was 2D layered structure. The two MOFs emitted the characteristic fluorescence of Eu(III) or Tb(III) ion with the excitations of UV-rays. Their lifetimes of excited states for Eu(III) (⁵D₀) and Tb(III) (⁵D₄) were 0.31 and 0.82 ms. The absolute quantum yields (Ф_a) of MOF1 and 2 were also tested and the Ф_a(1) (λ_ex = 320 nm) and Ф_a(2) (λ_ex = 296 nm) were 15% and 48%, respectively.

通过 Eu(III) 或 Tb(III) 高氯酸盐与 3,5-pdc 和 1,2-bdc（3,5-H ₂ pdc = 3 ,5-吡啶二甲酸；1,2-H ₂ bdc = 1,2-苯二甲酸）水热法。两种配合物的化学式为[Eu ₂ (3,5-pdc)(1,2-bdc) ₂ (H ₂ O) ₄ ] _n (1) 和{[Tb ₂ (3,5-pdc)( 1,2-bdc) ₂ (H ₂ O) ₄ ]·2H ₂ O} _n(2). 测试了红外光谱和元素分析以表征这两种化合物。通过X射线单晶衍射确定晶体结构。MOF 1 是 3D 多孔网络结构，而 MOF 2 是 2D 层状结构。两种 MOF 在紫外线的激发下发出 Eu(III) 或 Tb(III) 离子的特征荧光。Eu(III) ( ⁵ D ₀ ) 和 Tb(III) ( ⁵ D ₄ )的激发态寿命分别为 0.31 和 0.82 ms。还测试了 MOF1 和 2的绝对量子产率 ( Ф _a ) 和Ф _a (1) ( λ _ex  = 320 nm) 和Ф _a ( 2 ) ( λ_ex  = 296 nm) 分别为 15% 和 48%。