优秀毕业论文（设计）_苯甲酸调控的单核Mn(II)配合物的设计、合成及结构.docxVIP

摘要本文利用溶液法，在甲醇溶剂下，以N3-苯甲酰吡啶基-2-甲酰胺腙(Hbpad)为配体，与金属盐MnCl2·4H2O反应配位构建了配合物[Mn(bpad)2](1)，并在此基础上引入辅助配体(间硝基苯甲酸)得到配合物[Mn(Hbpad)(mnb)2·(H2O)](2)。利用红外光谱，元素分析和X-射线粉末衍射分析及X-射线单晶衍射对其组成进行表征，解析了配合物的晶体结构。结果表明，配合物(1)中的Mn (II)离子与两个bpad-配体分子配位形成了一个扭曲的八面体六配位构型。属于单斜晶系，P2/n空间群，最小不对称单元为结构本身，通过氢键相互作用参与构筑超分子结构；配合物(2)中Mn (II)离子中心采用六配位的配位模式形成扭曲的八面体几何构型。属于三斜晶系P-1空间群，最小不对称单元为结构本身，Mn (II)离子的八面体几何构型是由一个Hbpad，两个mnb-和一个配位水分子构成。对比分析发现，两种配合物的结构完全不同，说明辅助配体在合成配合物中扮演重要角色。关键词：酰腙类希夫碱辅助配体配合物晶体结构AbstractIn this paper,the use of a solution method,in methanol solvent,N3- benzoyl hydrazone pyridin-2-carboxamide(Hbpad)asligand,with a metal salt complexing reaction MnCl2·4H2O construct complexes[Mn (bpad) 2](1), and on this basis,the introduction of ancillary ligands (nitrobenzoicacid) to give complexes[Mn(Hbpad)(mnb)2·(H2O)](2).IR,elemental analysisand x-ray powder diffraction and X-ray single crystal diffraction on its composition were characterized, resolved the crystal structure of the complex. And the results showed that the complex(1) of Mn(II) ions and two bpad- ligand molecule forms a coordinated six distorted octahedral coordination geometry. It belongs to monoclinic,P2/n space group,the smallest asymmetric unit of the structure itself, through hydrogen bonding interactions involved in constructing supramolecular structure; Complex(2) of the Mn(II)ion center with six-coordinated complex pattern formation distorted octahedral geometry. It belongs to triclinic, P-1 space group, the smallest asymmetric unit of the structure itself. Octahedral geometry Mn(II)ions by a Hbpad, two mnb- and a coordinated water molecules. Comparative analysis showed that two kinds of complex structure is completely different, indicating that ancillary ligands play an important role in the synthesis of complexes.KeyWords: Acylhydrazones Schiff baseancillary ligandscomplexescrystal structure目录1. 绪论11.1 前言11.2 酰腙类希夫碱及其金属配合物的特点、发展及应用11.2.1酰腙类希夫碱配体的特点11.2.2 酰腙类希夫碱及其金属配合物的发展11.2.3 酰腙类希夫碱及其金属配合物的应用21.3 辅助配体对配合物合成及结构的调控效应31.4 选题目的及