A novel fluorescent and electron-deficient hybrid, N-methylated [Eu (pddb)phen(ox)0.5]n (Eu-MOF-Me) has been prepared via post-synthetic modification. Considering its special luminescent properties and cationic framework, Eu-MOF-Me is developed as a visualized fluorescent probe. Notably, water-stable Eu-MOF-Me exhibits advantages like good structural and fluorescent stability in a wide range of pH value (3.39–10.86), excellent identification ability for F−, I−, and S2− (it can easily distinguish F− and I− from other halogen ions and can realize naked eye identification of F−, I−, and S2−), relatively low detection limits (6.61 μM for S2−, 7.57 μM for F−), and reusability. More importantly, it has been utilized for the construction of a Boolean logic gate system. In this system, Eu-MOF-Me serves as the gate, by taking F−, I−, and S2− as the inputs and fluorescence emission bands (UV380, B437, and R612) as the outputs; some primary logic gates (NOR, IMP, YES, NOT) and the combination of them have been realized. Moreover, we achieved a cascaded logic gate (NOR+OR). For further application, a molecular computing keypad-lock security system has been obtained. Graphical abstract A novel fluorescent and electron-deficient hybrid named Eu-MOF-Me has been prepared via post-synthetic methylation. Considering its special luminescent properties and cationic framework, Eu-MOF-Me was developed as a fluorescent probe for the visual monitoring of important anions. In addition, it was used for the construction of Boolean logic library and a keypad-lock system was achieved A novel fluorescent and electron-deficient hybrid named Eu-MOF-Me has been prepared via post-synthetic methylation. Considering its special luminescent properties and cationic framework, Eu-MOF-Me was developed as a fluorescent probe for the visual monitoring of important anions. In addition, it was used for the construction of Boolean logic library and a keypad-lock system was achieved

中文翻译：

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甲基化 Eu(III) 金属有机骨架作为荧光探针，用于构建分子逻辑门和监测 F-、I- 和 S2-

通过合成后修饰制备了一种新型荧光和缺电子杂交体，N-甲基化 [Eu (pddb)phen(ox)0.5]n (Eu-MOF-Me)。考虑到其特殊的发光特性和阳离子骨架，Eu-MOF-Me 被开发为可视化荧光探针。值得注意的是，水稳定的 Eu-MOF-Me 在很宽的 pH 值范围内（3.39-10.86）表现出良好的结构和荧光稳定性，对 F-、I- 和 S2- 具有出色的识别能力（它可以轻松区分 F − 和 I− 来自其他卤素离子，可以实现 F−、I− 和 S2− 的肉眼识别，检测限相对较低（S2− 为 6.61 μM，F− 为 7.57 μM），可重复使用。更重要的是，它已被用于构建布尔逻辑门系统。在这个系统中，Eu-MOF-Me 作为门，通过取 F-、I-、和 S2− 作为输入和荧光发射带（UV380、B437 和 R612）作为输出；一些主要的逻辑门（NOR、IMP、YES、NOT）和它们的组合已经实现。此外，我们实现了级联逻辑门（NOR+OR）。为了进一步应用，已经获得了分子计算键盘锁安全系统。图形摘要 通过合成后甲基化制备了一种名为 Eu-MOF-Me 的新型荧光和缺电子杂交体。考虑到其特殊的发光特性和阳离子骨架，Eu-MOF-Me 被开发为一种荧光探针，用于对重要阴离子进行视觉监测。此外，它用于构建布尔逻辑库并实现了键盘锁定系统通过后合成甲基化制备了一种名为 Eu-MOF-Me 的新型荧光和缺电子混合物。考虑到其特殊的发光特性和阳离子骨架，Eu-MOF-Me 被开发为一种荧光探针，用于对重要阴离子进行视觉监测。此外，还用于布尔逻辑库的构建，实现了键盘锁系统