有机—无机杂化型配位聚合物的合成、结构和磁性质研究

【作者】 董华泽；

【导师】 谢复新；

【作者基本信息】 安徽大学 ， 无机化学， 2003， 硕士

【摘要】 根据大量的文献调研得知，有机—无机杂化型配位聚合物具有广阔的研究空间和潜在的应用价值，是材料领域研究前沿之一。本论文追踪这一前沿展开工作。 在阐述顺磁性金属离子之间的自旋耦合或磁交叉现象时，双核铜配合物具有十分重要的意义。我们设计、合成了两个桥联双核铜配合物：一个是草酰胺桥联的[Cu₂（oxpn）L₂]（ClO₄）₂（oxpn=N，N′，-二（3-氨丙基）草酰胺，L=1，10-氮杂芴酮）；另一个是[Cu（tacn）]₂（C₂O₄）（ClO₄）₂（tacn=1，4，7—三氮杂壬环）。同时，还得到了两个新的单核铜配合物：[Cu（tacn）]（N₃）₂和[Cu（tacn）₂)（ClO₄）₂·2H₂O。通过红外、元素分析、固体紫外电子光谱对它们进行了表征，测定了它们的晶体结构并根据文献推测了两个双核配合物的磁性质。 由于氰基桥联的有机—无机杂化型配位聚合物溶解性好、结构多样，较易培养单晶以便进行磁和结构相关性的研究。我们使用较为简单的原料在温和的反应条件下，合成了五个结构新颖的有机—无机杂化型配位聚合物，测定了它们的晶体结构。对这些聚合物进行了红外、元素分析表征。测定了两个配位聚合物的变温磁化率，结果显示这两个聚合物是反铁磁性的。更多还原

【Abstract】 Based on the investigations of a large number of literatures, We find that organic-inorganic hybrid coordination polymer compounds, which are vital varieties of material science, are fertile field and have attractive applied values. Upon that, this dissertation falls to doing works running after this hot point.The main contents of this dissertation are outlined as follows:(1) In simply explaining the magnetic spin coupling or magnetic exchange between the magnetic metallic ions, the dinuclear copper( ) complexes are very important. So we design and synthesize two dinuclear compounds ,one is oxpn-bridged compound:[Cu2(oxpn)L2](ClO4)2 {thereinto, oxpn is N,N -propylenediamide-bis(3-aminopropyl);L isl,10-N,N -fluorenone) ;the other is oxal-bridged compound: [Cu(tacn)]2(C2O-4)(ClO4)2 {thereinto, tacn is 1,4,7-triazacyclonane }.In addition ,we get two novel mononuclear copper( ) compounds : [Cu(tacn)](N3)2 and [Cu(tacn)2](ClO4)2.2H2O. Meanwhile, these complexes are characterized by IR, Elemental analysis, and their crystal structures are determined by X-ray diffraction. We foretell the magnetic properties of the dinuclear compounds by the ultraviolet spectrum in solid.(2) organic-inorganic hybrid derivatives of Prussian blue bycyanide-bridged ,which have good solubility and a variety of structures and can be reached the connection between the magnetic susceptibility and the structure. Herein, We prepared five novel coordination polymers, which can be obtained by assemlies from organic and inorganic molecular building blocks. These organic-inorganic hybrid coordination polymers were characterized by infrared spectrum, elemental analysis and their crystal structure were determined by single crystal X-ray analysis. We also study the magnetic susceptibility of two polymers, which show antiferromagnetism.更多还原