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首页> 外文期刊>Chemistry: A European journal >An Anionic Interpenetrated Zeolite-Like Metal-Organic Framework Composite As a Tunable Dual-Emission Luminescent Switch for Detecting Volatile Organic Molecules
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An Anionic Interpenetrated Zeolite-Like Metal-Organic Framework Composite As a Tunable Dual-Emission Luminescent Switch for Detecting Volatile Organic Molecules

机译：阴离子互穿的类似沸石的金属有机骨架复合材料，作为可调谐双发射发光开关，用于检测挥发性有机分子。

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摘要

The luminescent MOF [(CH3)(2)NH2](2)[(Zn2O)L]5DMF (NENU-519, NENU=Northeast Normal University) with a zeolite BCT topology was successfully synthesized. It is a rare example of a two-fold interpenetrated framework with a zeolite topology. NENU-519 demonstrates the ability to selectively adsorb cationic dyes. Furthermore we developed Rh6@NENU-519 (Rh6=Rhodamine6G) as a dual-emitting sensor for probing different volatile organic molecules (VOMs) due to an energy transfer between L and the dye. The composite can be used to distinguish the isomers of o-, m-, and p-xylene and ethylbenzene using the emission-peak-height ratios of L to the dye as detectable signals, in which the readout signals are involved in the interactions between the dye@MOF composite and the guest analytes. Moreover, Rh6@NENU-519 can serve as a luminescent switch for the detection of different aromatic compounds, like benzene, benzene substituted with different groups, and pyridine. In other words, the Rh6@NENU-519 composite can be used as molecular decoder of the structural information of different VOMs into recognizable luminescent signals. Hopefully this work will open a new corridor to develop luminescent guest@MOF composites as sensors for practical applications.
机译：成功合成了具有沸石BCT拓扑结构的发光MOF [（CH3）（2）NH2]（2）[（（Zn2O）L] 5DMF（NENU-519，NENU =东北师范大学）。这是具有沸石拓扑结构的两层互穿框架的罕见示例。 NENU-519展示了选择性吸附阳离子染料的能力。此外，我们开发了Rh6 @ NENU-519（Rh6 = Rhodamine6G）作为双发射传感器，用于探测由于L与染料之间的能量转移而产生的不同挥发性有机分子（VOM）。该复合物可用于区分邻二甲苯，间二甲苯和对二甲苯和乙苯的异构体，方法是将L与染料的发射峰高比作为可检测信号，其中读出信号涉及染料@MOF复合材料和客体分析物。此外，Rh6NENU-519可以用作发光开关，用于检测不同的芳族化合物，例如苯，被不同基团取代的苯和吡啶。换句话说，Rh6 @ NENU-519复合材料可用作将不同VOM的结构信息转换为可识别的发光信号的分子解码器。希望这项工作将打开一个新的走廊，以开发发光的guest @ MOF复合材料作为实际应用的传感器。

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