Four new water-stable luminescent metal-organic frameworks (MOFs), namely {[Zn₄(L)₂(H₂O)₄(OH)₂]·3NMP}_n (1), {[Zn₃(L)₂(H₂O)₂]·Diox}_n (2), {[Cd₃(L)₂ (H₂O)₅]·NMP·3H₂O}_n (3), and {[Pb₃(L)₂(NMP)₂(H₂O)]·H₂O}_n (4), (H₃L = 5-(1-(carboxymethyl)pyrazol-3-yl)isophthalic acid; NMP = N-methyl-2-Pyrrolidoneand; Diox = 1,4-Dioxane) have been solvothermally synthesized with different solvents. The single crystal structures of 1–4 reveal that complexes 1 and 2 form the 2D (3,6)-connected kgd nets based on the tetranuclear [Zn₄(μ₁-COO)₂(μ₂-COO)₄] clusters and trinuclear [Zn₃(μ₁-COO)₂(μ₂-COO)₄] clusters, respectively. Complex 3 displays a 2D (3,6)-connected kgd net based on the trinuclear [Cd₃(μ₁-COO)₄(μ₂-COO)₂] clusters. Complex 4 presents a 2D layer with a rod-shaped SBUs. The solid-state luminescence properties and water stability of these complexes were investigated carefully, showing that 1 displays high selectivity for Fe³⁺, CrO₄²⁻, and Cr₂O₇²⁻ via luminescence quenching effects with low detection limits. The probable quenching mechanisms have been studied in detail.

四个新的水稳性发光金属有机骨架（MOF），即{[Zn ₄（L）₂（H ₂ O）₄（OH）₂ ]·3NMP} _n（1），{[Zn ₃（L）₂（H ₂ O）₂ ]·Diox} _n（2），{[Cd ₃（L）₂（H ₂ O）₅ ]·NMP·3H ₂ O} _n（3）和{[Pb ₃（L）₂（NMP）₂（H ₂ O）]·H ₂O} _n（4），（H ₃ L = 5-（1-（羧甲基）吡唑-3-基）间苯二甲酸; NMP = N-甲基-2-吡咯烷酮; Diox = 1,4-二恶烷）已经溶剂热用不同的溶剂合成。的单晶结构1 - 4表明，复合物1和2的形式的2D（3,6） -连接KGD网基于所述四核[锌₄（μ ₁ -COO）₂（μ ₂ -COO）₄ ]簇和三核[锌₃（μ ₁ -COO）₂（μ ₂ -COO）₄]集群。复杂3个显示2D（3,6） -连接KGD基于所述三核[CD净₃（μ ₁ -COO）₄（μ ₂ -COO）₂ ]簇。复合体4呈现带有杆状SBU的2D层。仔细研究了这些配合物的固态发光性能和水稳定性，结果表明1对Fe ³⁺，CrO ₄ ^2-和Cr ₂ O ₇ ^2-具有很高的选择性。通过低检测限的发光淬灭作用。已经详细研究了可能的淬灭机理。