毕业设计（论文）-基于二乙醇胺的钴镝金属配合物合成及磁性研究精选.doc

基于二乙醇胺的钴镝金属配合物合成及磁性研究 摘要 I Abstract II 引 言 1 第1章 绪论 2 第2章 配合物的合成 8 2.实验仪器 8 2.2 实验试剂 8 2.3 9 2.4 X-射线衍射法测定单晶物质结构 10 2.5 实验结果与讨论 11 第3章 配合物的结构分析及磁性研究 12 3.1分子结构的测定与描述 12 3.2 分子磁性的测定与描述 21 结 论 23 致 谢 24 参考文献 25 基于二乙醇胺的钴镝金属配合物合成及磁性研究 ：配位化合物是由可以给出孤电子对或多个不定域电子的离子或分子，以一定的组成和空间构型所组成的化合物，简称配合物。金属配合物是以金属为中心的配合物，金属离子或原子与配体结合而成。稀土金属配合物由于其新颖的结构，以及在发光、催化、等方面的应用而引起了科学家们的广泛关注。 本课题是以钴镝为金属源，以二乙醇胺为配体通过挥发法反应得到的钴镝金属配合物晶体，实验过程通过控制变量来研究不同的实验条件对金属配合物合成的影响，例如：反应时间、反应温度、配体与金属盐配比的不同比例、实验试剂添加顺序的不同，通过分析对比验证得到了合成该配合物的最优条件，最后得到了一种新型的钴镝金属配合物[Dy2Co8(L)4(HL)4(HCOO)4(OH)2(Cl)2 (CH3OH)2]2Cl-·4CH3 OH·2H2O，进行了晶体的结构分析和磁性研究。该金属配合物结构新颖，未见文献报道。： 配位化合物 钴镝配合物 磁性 晶体结构 Study on Synthesis and Magnetic Properties of Cobalt Dysprosium Metal Complexes with Diethanolamine Abstract： The coordination compound is a compound consisting of an ion or a molecule which can give a pair of electrons or a plurality of indefinite electrons, and a compoundof a certain composition and a spatial configuration, referred to as a complex. Metal complexes are metal centered complexes, metal ions or atoms combined with ligands. Rareearth metal complexes have attracted the attention of scientists, because of their novel structure, as well as in the application of light, catalysis and so on. In this paper, the cobalt dichroic metal complex crystals obtained by the volatilization reaction with diethanolamine as ligand were studied. The experimental process was used to study the effect of different experimental conditions on the synthesis of metal complexes by controlling variables. For example, reaction time, reaction temperature, different ratio of ligand to metal salt, and the order of addition of experimental reagents. The optimum conditions for synthesizing the complex were obtained by analysis and comparison. Finally, a new type of cobalt dysprosium [Dy2Co8(L)4(HL)4(HCOO)4(OH)2(Cl)2(CH3OH)2]2Cl-·4CH3OH·2H2O is synthesized, the structure analysis and magnetic properties of the crystals were studied. The metal complex has nove