论文标题:对羧基苯氧羧酸金属配位聚合物的合成与结构化学研究
论文作者
论文导师 高山,论文学位 硕士,论文专业 无机化学
论文单位 黑龙江大学,点击次数 756,论文页数 86页File Size4445K
2006-11-10论文网 http://www.lw23.com/lunwen_208517/
coordination polymer;; carboxylphenoxyl carboxylic acid;; syntheses;; crystal structure
配位聚合物已成为当前配位化学、超分子化学及材料和生命科学等领域中的热点之一。目前羧酸配位聚合物的研究主要集中在如苯二甲酸，均苯三甲酸等刚性芳香多羧酸配体。本论文设计合成了3个对羧基苯氧羧酸有机桥配体，采用自组装和水热法建构出18个具有单核、双核大环、一维链和层状的羧基苯氧羧酸金属配合物，并对其进行了元素分析、IR和晶体结构表征。结果表明：对羧基苯氧羧酸呈现出单齿、双齿、三齿、四齿桥联配位方式，且具有较好的刚柔特性。此外，探究了反应体系的pH值、溶剂、不同金属盐和氮杂环等条件因素对配合物的合成与拓扑结构的影响。
Currently, the construction of the coordination polymers has becomeone of the particularly important and topical subjects in the fields ofcoordination chemistry, supramolecular chemistry, material and biologicalscience et al. The current topical research focus on the rigid aromaticmulticarboxylate ligands, such as benzene dicarboxylic acid and benzenetricarboxylic acid et al. In this thesis, three organic bridging carboxylateligands, carboxylphenoxyi carboxylic acids, were designed and synthesized,and were used to construct eighteen coordination complexes with a greatvariety of topological structures, including mononuclear, binuclearmacrocyclic, 1-D chain, as well as 2-D layer structure, which werecharacterized by elemental analysis, IR and X-ray single crystal diffraction.In these complexes, the ligands, which are excellent bridging characteristicwith both rigid and flexible parts, show multiple coordination modesthrough carboxylate O atoms. In addition, the effects of pH value, solvents.metal salts and nitrogen heterocycle molecules on the synthesis andtopological structures of the coordination complexes have also been studied.
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