摘 要MOFs是一种有机-无机杂化材料，它的优点：比表面积极大、热稳定性良好、化学稳定性较好孔径可调控。既有无机材料的刚性，又有有机材料的柔性特征。这些优点使得它在化学传感方面有了良好的应用前景。并且随着研究的深入，近年来关于MOFs传感器的应用越来越多，主要在检测挥发性有机物、金属离子、DNA、蛋白质及其他重要生物分子的应用。89502

本文通过设计将两个羧酸配位基团嫁接在具有AIE效应的四苯乙烯上，得到有机配体(H2L)，再将此配体与Zn(II)配位组装得到一个强发光三维金属有机骨架多孔配合物[Zn4O(L1)3](I)。得到配合物后对配合物I进行了X-射线单晶衍射、热稳定性、气体吸脱附和荧光传感性能等研究。结果表明配合物I具有较好的热稳定性，在温度低于440℃时不会分解，并且具有微孔结构，用布厄特法 (BET) 和朗缪尔法 (Langmuir) 计算出表面积分别是530。7m2/g和682。6m2/g。固体绝对荧光量子产率为30。0%，相比于配体荧光量子产率22。0%略高。荧光传感显示甲苯、间二甲苯、均三甲苯和苯胺等挥发性有机物对配合物I具有荧光增强效果，而硝基苯对配合物I具有荧光猝灭效果，猝灭率高达95%以上。

Abstract：MOFs is a kind of organic-inorganic hybrid materials, which has large specific surface area, good thermal stability, chemical stability and advantages of aperture can be regulated and controlled。 The rigid inorganic material has the characteristics of flexible and organic material。 These advantages make it has a good application prospect in chemical sensing and with the research。 Further, in recent years, more and more applications on the MOFs sensor, mainly in the detection of volatile organic compounds, metal ions, DNA,protein and other important biological molecules。

In this paper, through the design of the two carboxylic acid ligands grafted with AIE effect in four styrene, organic ligand (H2L), then the ligands with Zn (II) coordination assembly has a strong light porous three-dimensional metal organic complexes [Zn4O(L1)3] (I) complexes of。 I complexes were analyzed by X- ray diffraction, thermal stability, gas adsorption studies with fluorescence sensing properties。 The results show that I complexes have good thermal stability, does not decompose at temperatures below 440 DEG C, and has a microporous structure, cloth heutte method (BET) and Langmuir (Langmuir) to calculate the surface area of 530。7m2/g and 682。6m2/g。 respectively is its solid absolute fluorescence quantum yield of 30%, slightly higher than the ligand fluorescence quantum yield of 22%。 The fluorescence sensing show that toluene, xylene, toluene and aniline were three volatile organic compounds on complexes of I with fluorescence enhancement effect, and nitrobenzene on complexes of I with fluorescence the effect of quenching, quenching rate as high as 95%。源Q于W优E尔A论S文R网wwW.yOueRw.com 原文+QQ75201,8766

毕业论文关键词：金属有机框架； 四苯乙烯； 金属配合物；荧光量子产率

Keyword: Metal-Organic Frameworks; Tetraphenylethylene; metal complex; quantum yield

目    录

摘要3

Abstract 4

目录5

1。 引言6

 1。1研究背景6

 1。2研究现状6

 1。3研究意义9

2。 实验部分10

 2。1实验仪器10

 2。2配体的合成10

 2。3配合物I的合成 13

 2。4 配合物I表征15

 2。4。1晶体结构分析15

 2。4。2 X-单晶衍射表征15

 2。4。3热稳定性来自优Y尔L论W文Q网wWw.YouERw.com 加QQ7520~18766 分析16

 2。4。4气体吸脱附性能分析17

 2。4。5荧光性能探究17