Antiferromagnetic Copper(II) Metal-Organic Framework Based Quartz Crystal Microbalance Sensor for Humidity

作者：Zhou, Zhuoqiang; Li, Ming-Xing^*; Wang, Luyu; He, Xiang; Chi, Tao^*; Wang, Zhao-Xi^*

来源：Crystal Growth & Design, 2017, 17(12): 6719-6724.

DOI：10.1021/acs.cgd.7b01318

• COORDINATION POLYMERS
• MAGNETIC-PROPERTIES
• STRUCTURAL DIVERSITY
• SELECTIVE ADSORPTION
• SENSING APPLICATIONS
• THIN-FILMS
• GAS SENSOR
• LUMINESCENCE
• COMPLEXES
• LIGAND

A novel copper metal-organic framework (MOF) [Cu3L2(H2O)(2.75)]center dot 0.75H(2)O center dot 1.75DMA (H3L = 4-(2-carboxyphenoxy)-isophthalic acid, DMA = dimethylacetamide) has been synthesized and structurally characterized by elemental analyses, IR spectroscopy, and single crystal X-ray diffraction. Compound 1 shows a three-dimensional architecture with a sqc topology net where the [Cu-2(COO)(4)] unit was viewed as a node. Magnetic studies indicate that strong antiferromagnetic coupling with J = -159.0(9) cm(-1) dominates in the compound. As a sensor, the compound based on quartz crystal microbalance (QCM) exhibits good linearity humidity sensing properties after being exposed to various relative humidity environments at room temperature. The resulting sensitivity is about 28.7 Hz/%RH with a good linearity coefficient of 0.993.

• 出版日期2017-12
• 单位上海大学; 上海海洋大学; 华南农业大学