应用化学2017，Vol.34Issue(9)：1059-1065,7.DOI:10.11944/j.issn.1000-0518.2017.09.170189
一例对二硫化碳具有荧光传感性能的Mg-金属有机框架化合物
A Fluorescent Magnesium-Based Metal-Organic Framework with a Sensitive Sensing Property for Carbon Disulfide
摘要
Abstract
Presented here are the solvothermal synthesis, structural characterization and fluorescent properties of a magnesium metal-organic framework(Mg-MOF), namely [Mg4(1,4-NDC)4(DMA)2(CH3OH)2(H2O)2]·DMA·CH3OH(1, 1,4-H2NDC=1,4-naphthalene dicarboxylic acid, DMA=N,N′-Dimethylacetamide).Single-crystal X-ray diffraction studies revealed that compound 1 crystallized in the monoclinic space group P21/c(No.14) with a=2.06090(12) nm, b=2.21014(13) nm, c=1.50385(10) nm, β=111.399(3)°, V=6.3776(7) nm3, Z=4, Dc=1.403 g/cm3, F(000)=2824, R=0.0596 and wR=0.1225(I>2σ(I)).The structure of compound 1 features a three-dimensional(3D) network constructed from the 1,4-NDC ligands as bridging linkers and binuclear magnesium clusters as the secondary building units, with cages occupied by different solvent molecules of DMA and CH3OH.Notably, fluorescence studies revealed that compound 1 demonstrated sensitive sensing towards carbon disulfide(CS2);remarkably, the fluorescence intensity of compound 1 could be almost completely quenched at the low concentration of 0.4%(volume fraction) of CS2.Thermal stability was investigated by thermogravimetric analysis which indicated that compound 1 could be stable up to 140 ℃.关键词
镁/金属有机框架化合物/荧光传感/二硫化碳Key words
magnesium/metal-organic framework/fluorescence sensor/carbon disulfide分类
化学化工引用本文复制引用
宫辽阔,宋颖,申南南,张波,吴兆锋,黄小荥..一例对二硫化碳具有荧光传感性能的Mg-金属有机框架化合物[J].应用化学,2017,34(9):1059-1065,7.基金项目
国家自然科学基金(21403233) （21403233）
科技部973项目(2014CB845603)Supported by the National Natural Science Foundation of China(No.21403233), the 973 Program(No.2014CB845603) （2014CB845603）
