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多氮唑衍生配体构筑的配合物单晶和纳米晶体的结构与性质

发布时间:2019-01-23 12:30
【摘要】:多氮唑类有机配体构筑的过渡金属配合物具有多种新颖的结构和功能性质,在光、磁、含能功能材料和环境应用领域展示出广泛的应用前景。本文合成了一系列具有不同形貌和结构特征的配合物,研究了全部化合物的结构和功能性质。全文共分为三章:第一章为前言,主要介绍了四唑、三唑及其衍生物构筑的配合物的研究进展以及四唑衍生物作为高氮含能材料包括纳米含能材料的合成方法与应用的研究现状。第二章介绍了以5,5'-偶氮四唑(AZT2-)为配体与过渡金属Cr(Ⅲ)盐构筑三种配合物[Cr(H_2O)_6]_2(AZT)_3·6H_2O(1),[Cr(OH)(AZT)(H_2O)_3]·2H_2O(2)和[Cr(OH)(H_2O)_5]AZT·H_2O(3)的纳米晶体的合成、结构表征与性质。使用原位合成法实现了从一种纳米晶体到另一种纳米晶体的转换。通过红外光谱、拉曼光谱、元素分析、光电子能谱(XPS)、热重(TG)和差热分析(DSC)、扫描电镜(SEM)和透射电镜(TEM)等表征了这些含能纳米晶体的形貌结构特征和光谱性质以及形貌相关的热稳定性。同时表征了这些纳米晶体的撞击、摩擦、火焰和电火花感度性质并进行了比较分析。通过对这些纳米晶体的高温(500℃以上)的热分解产物的组成和结构分析,确定其分解产物为Cr(III)金属氧化物,这为过渡金属氧化物的纳米晶体的合成提供了一种新的方法。第三章介绍了以4-(1H-1,2,4-三唑-1-甲基)苯甲酸[H(4-tzbc)]为配体与两种过渡金属盐CoCl_2·6H_2O和CuCl_2·4H_2O构筑了{[Co(4-tzbc)2(H_2O)_2]×2H_2O}_n(4和[Cu(4-tzbc)_2]_n(5)两种配合物。以4-偶氮四唑苯酚(H_2atp)为配体与过渡金属MnCl_2·6H_2O盐构筑了{[Mn(Hatp)_2(H_2O)_4]×3H_2O}(6)和{[Mn_2(atp)_2(H_2O)_6]}(7)两种配合物。培养了四种配合物4-7的单晶并用X-射线单晶衍射技术表征了它们的晶体结构。分析结果表明配合物4和5为一维链结构,6为单核结构,7为双核结构。此外还表征了配合物4和5的荧光性质,发现他们的固体能发出绿色荧光。此外还表征了配合物7的磁学性质。
[Abstract]:The transition metal complexes constructed by polyazolium organic ligands have a variety of novel structure and functional properties. They are widely used in the fields of light, magnetism, energetic functional materials and environmental applications. In this paper, a series of complexes with different morphologies and structural characteristics have been synthesized, and the structure and functional properties of all compounds have been studied. This paper is divided into three chapters: the first chapter is the preface, which mainly introduces tetrazole, The research progress of the complexes constructed by triazole and its derivatives and the research status of synthesis methods and applications of tetrazole derivatives as high-nitrogen energetic materials including nano-energetic materials. In chapter 2, three complexes [Cr (H _ 2O) _ 6] _ 2 (AZT) _ 3 6H_2O (1) were constructed by using AZT2- as ligand and transition metal Cr (鈪,

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