A Novel 3D Zn-based Luminescence Metal-organic Framework: Synthesis, Structure and Fluorescence Enhanced Sensing of Ammonia Vapor in Air  

作　　者：JU Ping LIU Xi-Cheng ZHANG En-Sheng 鞠萍;刘西成;张恩生(College of Chemistry and Chemical Engineering,Qufu Normal University,Qufu 273165,China;Laboratory of New Energy&New Functional Materials,College of Chemistry and Chemical Engineering,Yan'an University,Yan'an 716000,China)

机构地区：[1]College of Chemistry and Chemical Engineering,Qufu Normal University,Qufu 273165,China [2]Laboratory of New Energy&New Functional Materials,College of Chemistry and Chemical Engineering,Yan'an University,Yan'an 716000,China

出　　处：《Chinese Journal of Structural Chemistry》2020年第8期1458-1464,1359,共8页结构化学（英文）

基　　金：Natural Science Foundation and Innovative Talents Promotion Plan of Shaanxi Province(2019KJXX-075,2018JQ2079,2018JQ2040)。

摘　　要：A three-dimensional(3D)zinc metal-organic framework(MOF),Zn4(μ4-O)(bcd)3(complex 1)has been synthesized by using 1-[bis(4-carboxylphenyl)methyl]-1,3-diazole(H2 bcd)and Zn(NO3)2·6 H2O under hydrothermal conditions.The structure has been determined by single-crystal X-ray diffraction analyses and further characterized by elemental analyses,IR spectra,powder X-ray diffraction(PXRD)and thermogravimetric analyses(TGA).Single-crystal X-ray diffraction analyses reveal that complex 1 crystallizes in trigonal system,space group R3 with a=23.0521(6),b=23.0521(6),c=15.3326(6)A,γ=120°,V=7056.2(4)A^3,Z=6,C54H36N6O13Zn4,Mr=1242.37,Dc=1.754 g/cm^3,F(000)=3756,the final R=0.0411 and wR=0.1007 for 2743 observed reflections(I>2σ(I)).Complex 1 consists of a 3D network constructed by four nuclear clusters Zn4(μ4-O)(COO)6 N3 and the bcd2-ligand.Interestingly,1 exhibits strong luminescent emission in solid state at room temperature and could be used as a qualitative fluorescence enhancing sensor for ammonia vapor in air.

关 键 词：zinc MOF 1-[bis(4-carboxylphenyl)methyl]-1 3-diazole crystal structure fluorescent material 

分 类 号：X851[环境科学与工程—环境工程] O641.4[理学—物理化学]