含噻吩羧酸配体的金属有机骨架材料的合成及性能研究
发布时间：2018-11-08 20:01
【摘要】：金属有机骨架材料(MOFs)作为一种多孔材料在众多领域中得到了广泛应用,它的结构具有多样性,高度可调性和可裁剪性,使其无论是在学术界还是工业领域都引起了极大的关注。这不仅仅是因为他们的美学结构特性,而且它们在很多领域展现出卓越的应用性能,尤其对催化领域的研究引起了人们注意。MOFs中存在均匀分布的活性位点,以及含有大的孔道,保证了每个活性位点的可接触性,因此,MOFs是很好的异相催化剂。设计合成含有功能化的金属有机骨架材料引起了人们的兴趣,有机配体设计合成对修筑功能性金属有机骨架材料扮演着至关重要的角色。设计含有功能位点的有机配体,为金属有机骨架材料提供了杰出的应用价值。本文中,我们在金属有机骨架材料中引入S或噻吩,利用噻吩线性配体合成的金属有机骨架中裸露的S位点,用来选择识别金属离子,并且能够与金属离子形成配位键,进而能够选择吸附金属离子。因此本文设计合成两个含有噻吩的有机配体与稀土盐合成了一系列的金属有机骨架材料。对其合成方法、结构、表征以及并应用该材料对金属离子检验与吸附以及其它性质进行了详细的研究。第一章,阐述了近几年来金属有机骨架材料的在催化、荧光、吸附领域中的具体应用以及所取得的进展情况,并且介绍本文的选题意义。第二章,我们设计合成了含有噻吩官能团的有机配体,[2,3-b]并二噻吩基-2,6-二酸,用其分别于与稀土金属离子通过溶剂法合成出四个配位聚合物{[Ln2L6DMF4]?1.5H2O}n(1)(Ln=Eu(Ⅲ)(1),Y(Ⅲ)(2),Dy(Ⅲ)(3),Yb(Ⅲ)(4)),该配位聚合物含有三角形的孔道,并对这四个配合物的结构做了的研究,研究结果表明四个配合物为同构型的,还详细的研究和讨论配合物1的对爆炸物硝基苯以及对Al3+的荧光识别性质。第三章,我们同样选用含有噻吩官能团的有机配体,[2,3-b]苯并二噻吩基-2,6-酸,利用该配体与稀土Er(Ⅲ)合成了金属有机骨架材料,该配合物含有菱形的孔道及不饱和位点,用该配合物来催化硅腈化反应,因为该配合物孔道中含有裸露的S位点,应用该位点对金属离子进行选择吸附性质研究。第四章,最后对文中所提到的五种金属有机骨架材料的结构特征,功能性质进行归纳,为以后金属有机骨架材料的发展应用提供了新的方向。最后,对MOFs的应用前景做了展望。
[Abstract]:As a porous material, (MOFs) has been widely used in many fields. It has aroused great concern in both academic and industrial fields. This is not only because of their aesthetic structural properties, but also because of their excellent application performance in many fields, especially in the field of catalysis. The existence of uniformly distributed active sites in MOFs. MOFs is a good heterogeneous catalyst because it contains large pore channels to ensure the accessibility of each active site. The design and synthesis of organometallic skeleton materials with functionalization has attracted much attention. The design and synthesis of organic ligands plays an important role in the construction of functional organometallic skeleton materials. The design of organic ligands with functional sites provides an excellent application value for organometallic skeleton materials. In this paper, we introduce S or thiophene into the organometallic skeleton, and use the exposed S site in the organometallic skeleton synthesized by the thiophene linear ligand to select and recognize metal ions and form coordination bonds with metal ions. In turn, it is possible to choose to adsorb metal ions. Therefore, two organic ligands containing thiophene and rare earth salts were designed to synthesize a series of metal organic skeleton materials. The synthesis method, structure, characterization and application of this material to metal ions were studied in detail. In the first chapter, the applications of organometallic skeleton materials in catalysis, fluorescence and adsorption fields and their progress in recent years are described, and the significance of this paper is introduced. In chapter 2, we have designed and synthesized organic ligands containing thiophene functional groups, [2o _ 3-b] and dithiophene -2o _ 6-dicarboxylic acid, Four coordination polymers {[Ln2L6DMF4]? 1.5H2O} n (1) (Ln=Eu (鈪，
本文编号：2319508
[Abstract]:As a porous material, (MOFs) has been widely used in many fields. It has aroused great concern in both academic and industrial fields. This is not only because of their aesthetic structural properties, but also because of their excellent application performance in many fields, especially in the field of catalysis. The existence of uniformly distributed active sites in MOFs. MOFs is a good heterogeneous catalyst because it contains large pore channels to ensure the accessibility of each active site. The design and synthesis of organometallic skeleton materials with functionalization has attracted much attention. The design and synthesis of organic ligands plays an important role in the construction of functional organometallic skeleton materials. The design of organic ligands with functional sites provides an excellent application value for organometallic skeleton materials. In this paper, we introduce S or thiophene into the organometallic skeleton, and use the exposed S site in the organometallic skeleton synthesized by the thiophene linear ligand to select and recognize metal ions and form coordination bonds with metal ions. In turn, it is possible to choose to adsorb metal ions. Therefore, two organic ligands containing thiophene and rare earth salts were designed to synthesize a series of metal organic skeleton materials. The synthesis method, structure, characterization and application of this material to metal ions were studied in detail. In the first chapter, the applications of organometallic skeleton materials in catalysis, fluorescence and adsorption fields and their progress in recent years are described, and the significance of this paper is introduced. In chapter 2, we have designed and synthesized organic ligands containing thiophene functional groups, [2o _ 3-b] and dithiophene -2o _ 6-dicarboxylic acid, Four coordination polymers {[Ln2L6DMF4]? 1.5H2O} n (1) (Ln=Eu (鈪，
本文编号：2319508
本文链接：https://www.wllwen.com/kejilunwen/huaxue/2319508.html
教材专著
