共查询到19条相似文献,搜索用时 62 毫秒
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含磺酸基有机配体的配合物种类繁多,其中主要包括简单磺酸配合物、芳香环磺酸配合物、杂环芳香磺酸配合物和Schiff碱磺酸配合物等。其空间结构多种多样,比如一维链状结构、二维层状结构和三维网状结构。该类配合物具有优异的物理和化学性质,在众多领域里显示出广阔的应用前景。合成结构新颖、组成多样的新型磺酸基配合物及其应用研究已经成为配位化学领域的研究前沿和热点之一。综述了含磺酸基有机配体配合物的分类以及结构研究进展,探讨了该研究领域亟待解决的问题以及今后可能的发展前景。 相似文献
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本文用乙酰基二茂铁合成了α-二茂铁基乙叉富烯,将其锂化后分别与四氯化钛、三氯一茂钛、三氯(甲基茂)钛、二氯二茂钛反应,合成了四种含二茂铁基的有机钛化合物,并对这些化合物作了物理及化学性质的研究、元素分析、红外光谱和核磁共振谱的分析。 相似文献
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二氯二茂钛是一种具有抗肿瘤活性的金属有机化合物。通过二氯二茂钛和水杨酸或甲硫氨酸反应合成了两种二茂钛配合物,经元素分析、红外光谱、核磁共振氢谱和紫外-可见吸收光谱等方法表征了它们的结构。其结果表明:水杨酸配合物为单分子双齿配位的二茂钛配合物,而甲硫氨酸配合物为双分子单齿配位的二茂钛配合物。甲硫氨酸配合物的离子性结构使其具有很好的水溶性,有利于其在生物体系和临床上的使用,同时甲硫氨酸配合物的两个亲脂性的茂环对其渗透进入细胞膜也具有重要作用,因而,它具有较好的临床应用前景。 相似文献
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《化学推进剂与高分子材料》2017,(3):72-75
采用有机元素分析、X射线荧光光谱(XRF)和傅里叶变换红外光谱(FTIR)对合成的含能配合物Co(ANPyO)_3进行了结构表征。用差示扫描量热(DSC)对配合物的热分解动力学进行了研究,得到了动力学参数及分解方程,并研究了配合物含量对黑索今(RDX)热分解的影响。 相似文献
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以聚苯醚高分子为载体,采用“一锅法”合成了新的聚苯醚键联的二氯二茂钛衍生物。对合成的配合物进行了元素及光谱分析。研究了配合物对烯丙基苯类化合物异构化反应的催化性能,并讨论了不同条件对反应的影响。ESR 谱证实上述含钛高分子配合物所形成的钛氢配合物具有“位置分离效应”,主要处于非聚合的单分子态。 相似文献
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在无水甲醇体系合成水杨醛缩邻氦基苯酚席夫碱配体及两种含Cu(Ⅱ)席夫碱配合物,由元素分析初步确定各物质的组成,配合物的结构通过紫外光谱、红外光谱和热分析等手段进行表征。实验结果表明,席夫碱配体以亚胺基氮原子和酚基氧原子与金属离子配位,水分子则是以配位水的形式存在。 相似文献
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The synthesis and characterization of Ru complexes of the type [L2X2RuCHR] (L=PPh3, PCy3, N‐heterocyclic carbenes or their derivates; X=Cl) grafted on mesoporous SBA‐15 material are described. In this heterogeneous catalyst the Ru complexes are anchored in the pore channels of mesoporous silica material SBA‐15 to prevent the decomposition of the catalytic species. Compared with formal organic‐supported heterogeneous catalysts, this heterogeneous catalyst shows relatively high catalytic activity in olefin metathesis reactions and can be used several times without any decrease in catalytic activities. 相似文献
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Daniela I. Bezuidenhout Belinda van der Westhuizen Nina A. van Jaarsveld Simon Lotz 《Journal of Inorganic and Organometallic Polymers and Materials》2014,24(1):39-57
The preparation and the features of the ring activation in π-arene metal (chromium, manganese) complexes are discussed. The bottom-up approach to the synthesis of σ, π-bi- and multimetal complexes, and the synthesis of cyclometallated and multicyclic complexes from a variety of selected routes are also reviewed. The stereochemical features of such complexes, and their applications in carbon–carbon coupling reactions and metal insertion reactions are highlighted. The redox reactivities and selected applications of (multi)metal π-arene complexes in catalysis and organic synthesis are included. Finally, the extension of the multimetal π-arene complexes to larger assemblies is shown. The importance of arene ring substituents in the basic mononuclear units and their use as bidentate metalloligands, with bidentate amines as linkers, in the construction of polymers, metal organic frameworks, networks (also on nanoparticles or silica supports), is highlighted. 相似文献
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有机镍化合物作为重要的催化剂,在有机合发反应中有着广泛的应用.近年来有机镍化学发展十分迅速.本文全面综述了有机镍化合物在有机合成中的应用. 相似文献
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综述了含硫金属有机配合物的研究进展,总结了巯基氮杂环配体的配位结构。表现在成键方式和分子结构上,极具丰富多样性。对于开展金属含硫配体配合物的合成与表征工作意义重大而深远。 相似文献
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综述了近年来钛化合物在有机合成中的应用,包括氧化反应、还原反应、偶联反应等,其中着重介绍了钛化合物在有机不对称合成中的应用。 相似文献
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The synthesis, characterization and voltammetric and spectroelectrochemical properties of newly synthesized lead phthalocyanines bearing tetra-(1,1-(dicarbpenthoxy)-2-(4-biphenyl)-ethyl), tetra-(1,1-(dicarbpenthoxy)-2-(1-naphthyl)-ethyl and tetra-((1,1,2-(tricarbopentoxyethyl)) substituents have been presented in this work for the first time. The characterization of the complexes was made by elemental analysis, 1H NMR, FT-IR, UV-vis and Maldi-TOF. The solution redox properties and spectroelectrochemical investigation of the complexes are studied using various electrochemical techniques in DCM on a platinum electrode. Cyclic voltammetry and differential pulse voltammetry studies show that the complexes give three one-electron ligand-based reductions and two one-electron oxidation couples having diffusion-controlled mass transfer character. Assignments of the redox couples were confirmed by spectroelectrochemical measurements. Spectroelectrochemical studies reveal that all complexes are demetallized during the spectroelectrochemical measurement under the applied potentials at the first reduction and oxidation potentials of the complexes. Different ring substituents of the complexes affect the easy demetallization processes of the complexes. 相似文献