Four novel coordination polymers (CPs), {[Zn₂(tbta)(phen)(OH)]·4H₂O}_n (1), {[Zn₄(tbta)₂(bpy)(OH)₂(H₂O)₂]·7H₂O}_n (2), {[Cu₂(tbta)(phen)(OH)]·4H₂O}_n (3) and [Cu₂(tbta)(phen)₂(OH)]_n (4) (H₃tbta = 1-(triazol-1-yl)-2,4,6-benzene tricarboxylic acid; bpy = 4,4′-bipyridine; phen = 1,10-phenanthroline), were synthesized and characterized by elemental analyses, FT-IR spectroscopy, and single-crystal X-ray diffraction analyses. CP 1 shows a 2D bilayer network structure based on binuclear Zn^II units and (tbta)³⁻ ligands, which are arranged in an [ABAB⋯] alternation to form 3D supramolecular structures through π⋯π stacking interactions and hydrogen bonding interactions. Noticeably, CP 2 forms a 3D network structure based on binuclear Zn^II units and (tbta)³⁻ and bpy ligands. Interestingly, the lattice H₂O molecules are joined by strong hydrogen bond interactions generating (H₂O)₁₀ clusters, which make contact with the 2D network to form a 3D supramolecular structure. CPs 3 and 4 have a 2D network structure. In particular, the (tbta)³⁻ ligands in 1–4 adopt four different coordination modes. The thermal stabilities, XRD, UV, and photoluminescence properties of CPs 1–4 were also studied. Remarkably, CP 1 is a highly selective and sensitive bifunctional luminescent sensor towards Cu²⁺ and Cr₂O₇²⁻ ions. Moreover, CPs 3 and 4 exhibit photocatalytic activities for degradation of dyes (MB/MO) under UV light irradiation.

中文翻译：

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含羟基的四种新型Zn（II）/ Cu（II）配位聚合物：合成，晶体结构，发光传感和光催化性能

四种新型配位聚合物（CP），{[Zn ₂（tbta）（phen）（OH）]·4H ₂ O} _n（1），{[Zn ₄（tbta）₂（bpy）（OH）₂（H _2） O）₂ ]·7H ₂ O} _n（2），{[Cu ₂（tbta（phen）（OH）]·4H ₂ O} _n（3）和[Cu ₂（tbta）（phen）₂（OH） ）] _n（4）（H ₃tbta = 1-（三唑-1-基）-2,4,6-苯三羧酸; bpy = 4,4'-联吡啶；phen = 1,10-菲咯啉），通过元素分析，FT-IR光谱和单晶X射线衍射分析进行表征。CP 1显示了基于双核Zn ^II单元和（tbta）^3-配体的2D双层网络结构，它们以[ABAB +]交替排列，通过π⋯π堆积相互作用和氢键相互作用形成3D超分子结构。值得注意的是，CP 2形成了基于双核Zn ^II单元以及（tbta）^3-和bpy配体的3D网络结构。有趣的是，晶格H ₂O分子通过强大的氢键相互作用生成（H ₂ O）_10个簇，这些簇与2D网络接触形成3D超分子结构。CP 3和CP 4具有2D网络结构。尤其是1-4中的（tbta）³⁻配体采用四种不同的配位模式。还研究了CP 1–4的热稳定性，XRD，UV和光致发光特性。值得注意的是，CP 1是对Cu ²⁺和Cr ₂ O ₇ ^2-离子具有高度选择性和敏感性的双功能发光传感器。此外，CP 3图4和4显示了在紫外线照射下降解染料（MB / MO）的光催化活性。