ABSTRACT A 2D coordination polymer [Zn2(betc)(bip)2]·3H2O (1) has been synthesised by deploying mixed ligand strategy . The photoluminescence properties of 1 in different solvents have been investigated and its sensing properties to detect nitroaromatic compounds (NACs) have been explored. 1 displayed selective sensing for 4- nitrotoluene (4-NT) with lower limit of detection (LOD) 0.62 ppm. The probable mechanism for sensing of NACs by 1 ha s been addressed using quantum chemical calculations. Also photocatalytic properties of 1 to photo-decompose model aromatic dyes viz. methyl violet (MV) and 20 rhodamine B (Rh B) have been evaluated. The experiments indicated that 1 displayed better photocatalytic performance in photo-degrading MV than Rh B. The plausible mechanism through which 1 displayed photocatalytic degradation of aromatic dyes had been revealed using density of states (DOS) and partial DOS calculations. The probable mechanism for the photocatalytic property and emission quenching of 1 has been proposed with the aid of density of states and partial density of states calculations. Graphical Abstract

中文翻译：

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一种新型二维层配位聚合物的光催化性能和发光传感

摘要 采用混合配体策略合成了二维配位聚合物[Zn2(betc)(bip)2]·3H2O (1)。已经研究了 1 在不同溶剂中的光致发光特性，并探索了其检测硝基芳族化合物 (NAC) 的传感特性。图 1 显示了对 4-硝基甲苯 (4-NT) 的选择性检测，检测下限 (LOD) 为 0.62 ppm。已经使用量子化学计算解决了 1 感测 NAC 的可能机制。1 光分解模型芳香染料的光催化性能，即。已评估甲基紫 (MV) 和 20 罗丹明 B (Rh B)。实验表明，1在光降解MV中表现出比Rh B更好的光催化性能。使用状态密度 (DOS) 和部分 DOS 计算揭示了 1 显示芳香染料光催化降解的合理机制。借助态密度和部分态密度计算，提出了 1 的光催化性能和发射猝灭的可能机制。图形概要