双Salamo金属配合物的合成、结构、性质及锌（Ⅱ）配合物荧光传感器的研究

发布时间：2018-07-04 21:10

  本文选题：Salamo + 型四肟配合物　； 参考：《兰州交通大学》2017年硕士论文

【摘要】：在科学研究和工农业生产、环境保护等很多领域,化学量的检测与控制技术正在得到越来越广泛的应用,而化学传感器是这个过程的首要环节。近几十年化学传感器的研究和发展表明,化学传感器的应用已深入人们现代生活的各个方面,环境保护和监控,预防灾难和疾病的发生,仍然是当前乃至今后相当长时期化学传感器应用的主要领域。Salen型和Salamo型化合物是一种多功能的螯合配体,其金属配合物在结构化学、立体化学、磁学、立体异构、配位化学、光谱学、分析化学、催化、光电显示、摄影、农业以及光致变色等领域都有重要的作用。在本文中通过一个基于萘环的长链Salamo型配体超分子结构和性质的研究,尤其超分子配体和配合物作为荧光化学传感器的性质进行了深入研究,得到了两个具有应用前景的荧光化学传感器。全文分为四个章节进行讨论:一、本章节主要介绍了研究背景。重点介绍了超分子领域的发展概况,包括Salen型和Salamo型化合物的研究近况,荧光化学传感器的研究近况,传感器主体识别客体的机理以及具有代表性的实例。另外对论文的选题的意义进行了阐述。二、我们设计并合成了一个萘环基的双边四肟型配体,同时我们得到了配体与锌(Ⅱ)、铜(Ⅱ)和钴(Ⅱ)的醋酸盐反应得到的三核金属配合物,并通过单晶衍射仪测得了相应的晶体结构。然后分别用核磁氢谱仪、熔点测定仪、紫外-可见光谱仪、荧光光谱仪等表征手段,测定了配体和三种金属配合物的结构和性质。我们对金属配合物结构进行了分析讨论,研究了分子内和分子间的作用力,以及分子间一维和二维的构型;通过紫外滴定实验确定了配体和金属离子的配比。三、研究了配体可以作为继荧光传感器识别含水有机体系中的锌(Ⅱ)离子和苦味酸根离子。我们研究了继电传感器H4L的稳定性和灵敏性,发现其符合传感器的要求。通过以上结论,我们认为继电传感器有三个优点:pH适应范围大;稳定性好;以及响应灵敏,可以用于实际应用中用于检测自然水中的Pic-离子。四、我们探索了配体和锌(Ⅱ)配合物作为pH荧光化学传感器的可能性。在荧光光谱中锌(Ⅱ)配合物以及其Pic-离子的聚合物荧光化学传感器对H+/OH-的荧光光谱响应变化就像开关一样,因此得到了继电传感器H4L的两条荧光响应链:加入(①Zn2+,H+和OH-,②Zn2+,Pic,OH-和H+)离子后溶液的荧光发生“①关-开-关-开”和“②关-开-关-开-关”的变化。
[Abstract]:In many fields, such as scientific research, industrial and agricultural production, environmental protection and so on, the chemical quantity detection and control technology is more and more widely used, and the chemical sensor is the primary link in this process. The research and development of chemical sensors in recent decades show that the application of chemical sensors has penetrated into all aspects of modern life, environmental protection and monitoring, prevention of disasters and diseases. Salen type and Salamo type compounds are multifunctional chelating ligands, their metal complexes are structural chemistry, stereochemistry, magnetics, stereoisomerism, coordination chemistry, etc. Spectroscopy, analytical chemistry, catalysis, optoelectronic display, photography, agriculture, and photochromism play an important role. In this paper, the structure and properties of a long chain Salamo ligand based on naphthalene ring were studied, especially the properties of supramolecular ligands and complexes as fluorescent chemical sensors. Two fluorescent chemical sensors with promising applications have been obtained. The full text is divided into four chapters to discuss: first, this chapter mainly introduces the research background. The development of supramolecular field, including Salen type and Salamo type compounds, fluorescent chemical sensors, the mechanism of host recognition and guest recognition, and representative examples are introduced in this paper. In addition, the significance of the topic is expounded. Secondly, we have designed and synthesized a naphthalene ring bilateral tetraoxime ligand. At the same time, we have obtained the trinuclear metal complexes which react with zinc (鈪，

本文编号：2097437