Two new Cd²⁺ coordination polymers (CPs), namely {[Cd(L)(1,4-PDA)]·0.7(C₂H₅OH)}_n (1) and {[Cd(L)_0.5(1,8-NDC)·H₂O]}_n (2) [L = 1,4-bis(5,6-dimethybenzimidazol-1-yl)-2-butene, 1,4-H₂PDA = 1.4-phenylenediacetic acid, 1,8-H₂NDC = 1,8-naphthalenedicarboxylic acid], were hydrothermally synthesized and characterized. 1 is a (4,4)-layered structure and further extended into a 3D supramolecular network via π–π stacking interactions. 2 features a 2D (3,4)-connected 3,4L83 framework. 1 and 2 can act as luminescence sensors for detecting acetylacetone (acac) and Fe³⁺ with high sensitivity, selectivity and recyclability. This is the first dual fluorosensors employing CPs for the detection of Fe³⁺ and acac. The mechanism for the luminescent sensing of acac and Fe³⁺ was suggested.

中文翻译：

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新的二维Cd（II）配位网络，带有基于苯并咪唑基的接头作为双功能化学传感器，用于检测乙酰丙酮和Fe3 +

两种新的Cd ²⁺配位聚合物（CPs），即{[Cd（L）（1,4-PDA）]·0.7（C ₂ H ₅ OH）} _n（1）和{[Cd（L）_0.5（1 ，8-NDC）·H ₂ O]} _n（2）[L = 1,4-双（5,6-二甲基苯并咪唑-1-基）-2-丁烯，1,4-H ₂ PDA = 1.4-苯二乙酸水热合成并表征了1,8-H ₂ NDC = 1,8-萘二甲酸[ 1,8-H ₂ NDC]。1是（4,4）层结构，并通过π–π堆积相互作用进一步扩展为3D超分子网络。2具有2D（3,4）连接的3,4L83框架。1和2可以用作发光传感器，以高灵敏度，选择性和可回收性检测乙酰丙酮（acac）和Fe ³⁺。这是第一批使用CP来检测Fe ³⁺和acac的双氟传感器。提出了acac和Fe ³⁺发光传感的机理。