大环三胺类化合物合成方法的研究进展

大环三胺类化合物是一类非常重要的化合物,但其合成比较困难,存在合成步骤多、产率低等问题。对大环三胺单体及其衍生物的合成方法进行了探讨,为大环三胺类化合物的相关研究提供了参考。     

新型瓜环化合物及其配合物合成的新进展

简要介绍了瓜环化学的概念、定义、结构特征及应用新进展。重点综述了：①新型瓜环超分子聚合物的自组装合成;②新型瓜环化合物在轻重稀土分离中的应用研究;③新型瓜环化合物与碱土金属管状配位聚合物的合成研究。并对瓜环化学的发展进行了展望。     

席夫碱大环聚醚稀土配合物的光谱分析

报道在合成了含羟基功能团Ｓｃｈｉｆｆ碱大环聚醚稀土配合物的基础上,对配合物的紫外光谱和红外光谱分析进行研究的情况。     

席夫碱大环聚醚稀土配合物的光谱分析

报道在合成了含羟基功能团Schiff碱大环聚醚稀土配合物[1]的基础上,对配合物的紫外光谱和红外光谱分析进行研究的情况。     

席夫碱及其金属配合物的研究进展

介绍了席夫碱及其金属配合物的性能及其在可逆固O2、抗菌、催化等研究领域近期的重要应用,为进一步全面了解席夫碱的性质,深入研究席夫碱奠定了基础。     

富勒烯金属配合物的研究进展

综述了近10年富勒烯金属配合物研究的进展,结果表明富勒烯(C60,C70)金属配合物具有潜在的应用前景.     

杂环化合物席夫碱及其配合物的研究进展

概述了杂环化合物席夫碱及其配合物的研究现状,重点介绍了杂环化合物席夫碱及其配合物的合成方法及在生物医药领域中的应用,并对其发展趋势进行了展望。     

金属配合物抗癌活性的研究进展

介绍了铂配合物、Schiff碱金属配合物及稀土金属配合物的抗癌活性研究现状。     

苯乙烯环氧化反应金属配合物催化剂研究进展

介绍了国内外常用于苯乙烯环氧化反应的金属配合物催化剂,并对其研究概况、及对产率和转化率的影响作了简要介绍。     

天然产物黄酮类化合物的提取、纯化及其金属配合物的研究进展

从天然产物黄酮类化合物有效成分(配体)的提取、纯化,黄酮类化合物金属配合物的合成、结构以及药理活性等方面的研究进行了综述。     

Base metal complexes as homogeneous catalysts and enzyme mimics

This article is a short overview of some recent research activity in the Laboratory of Inorganic Synthesis and Catalysis (LSCI) at EPFL-ISIC. It summarizes the work on Ni-catalyzed cross-coupling reactions of non-activated alkyl halides. It then describes and discusses the work on the bio-mimetic chemistry of [Fe]-hydrogenase.     

二维金属有机框架及其衍生物用于电催化分解水的研究进展

氢能是一种具有发展前景的可再生清洁能源,电催化分解水是产生氢气的有效途径,设计高效、经济的分解水电催化剂对促进可再生能源的发展至关重要。二维金属有机框架材料(MOFs)具有独特的二维层状结构和灵活可调的化学组成,近年来被广泛应用于电催化分解水领域。二维金属有机框架材料可进一步衍生形成氧化物、磷化物、硫化物、金属-碳复合物等材料,也表现出良好的电催化分解水性能。通过组分调节和结构调控能有效地优化二维金属有机框架及其衍生的材料的本征活性和反应动力学特性,进而提高其电催化性能。此综述介绍了二维MOFs材料及其衍生物在电催化水分解领域的最新研究进展,并展望了其未来研究方向和发展空间。     

Research progress of two-dimensional metal organic frameworks and their derivatives for electrocatalytic water splitting

Hydrogen is a kind of renewable clean energy with development prospects. Electrocatalytic water splitting is an effective way to produce hydrogen. So it is crucial to design efficient and economical water splitting electrocatalyst. Two-dimensional metal organic frameworks (MOFs) have a unique two-dimensional layered structure and a flexible and adjustable chemical composition. In recent years, they have been widely used in the field of electrocatalytic water decomposition. Two-dimensional metal organic framework materials can be derivatized to form oxides, phosphides, sulfides, metal-carbon composites and other materials, and they also exhibit good electrocatalytic water splitting performance. Simultaneously, the intrinsic activity and reaction kinetics of two-dimensional MOFs and their derivatives can be effectively optimized through component adjustment and structural modification, thereby improving their electrocatalytic performance. This review introduces the latest research progress of two-dimensional MOFs and their derivatives for electrocatalytic water splitting, and provides perspectives on the future development.     

Platinum-group metal cyclodextrin complexes and their use as command-cure catalysts in silicones

The Command-Cure concept is defined for a curable formulation as one with long work-like at ambient temperature and rapid cure time at elevated temperature. This concept is explored for a curable silicone system, cured via hydrosilylation. CODMCl₂ complexes (COD=1.5-cyclo-octadiene:M=Pt. Pd) are reacted with beta-cyclodextrin (-CD) to make 11 inclusion compounds,M=Pd.2;M=Pt.4. Compounds2 and4 were analyzed by¹H NMR and X-ray powder diffraction. Their catalytic ability was evaluated in a model system as well as a polymeric system that gels upon cure. Surprisingly, the Pd analog2 was a good command-cure catalyst whereas the guest compound CODPdCl₂,1, was not active in the hydrosilylation reaction. The Pt analog,4, was an effective command-cure catalyst while the corresponding guest. CODPtCl₂,3, was too active at low temperature in the hydrosilylation reaction. Additional Pt compounds and one Rh inclusion compound were evaluated as command cure catalysts. These inclusion compounds were: 11 -CD:[CODRhCl]₂,5: 11 -CD:CpPtMe₃,6 (Cp=cyclopentadienyl): 12 -CD:MeCpPtMe₃,7; 12 -CO:CODPtMe₂,8. The effectiveness of4 8 was evaluated in a number of silicone systems.     

Synthesis of heterocyclic metal complexes and their evaluation as marine antifoulants

4-Amino-3-thio-1,24-triazolidine (L₁) and 4-amino-5-thio-1,3,4-thiadiazole (L_II) as well as their metal complexes of the general formulae ML_I·2H₂O and ML_IICl (M; Pb(II), Cd(II) and Zn(II)) were prepared. With Sn(II), we obtained Sn(L_I)₂·2H₂O and SnL_IICl, respectively. The structures of the compounds were identified through elemental analysis, and IR and UV spectra measurements, in addition to thermal analysis in case of the metal complexes. The antifouling properties of the compounds were tested by their incorporation into paint formulations which were applied to PVC substrates and tested in water from Alexandria western harbour. When the compounds were added at 17·5% by volume, the coated panels were fouled after 3 months of immersion. The addition of 6·7% by volume of tributyltin oxide to 15·8% of the prepared compounds in one formulation elevated the paint efficiency and prevented fouling for 11 months. Paint containing solely tributyltin oxide at the same concentration was inactive against algae.     

Study of transition metal complexes as curing accelerators for anaerobic adhesives

Reported are the results of studying the influence of the composition of the complexes of transition metal salts with crown ethers on the kinetics of the curing of anaerobic adhesives developed in Kargin Research Institute of Polymer Chemistry and Technology. It is established that the use of copper salts makes it possible to substantially decrease the setting time on zinc-coated surfaces; however, in this case, the working life of adhesive decreases abruptly. It is shown that the activity of salts can be decreased by their complexation with various chelating agents. It is revealed that transition metal salts in the form of complexes with some crown ethers not only increase the rate of curing of anaerobic adhesives, but also considerably enhance the thermal stability of cured products that is explained by the ability of organic salts of metals to the inhibition of thermal-oxidative degradation of polymers.     

纳米MOFs及其衍生物在超级电容器中的研究进展

金属有机框架（MOFs）材料因其大的比表面积、可调控的孔道结构和丰富的活性位点引起了国内外学者们的广泛关注。近年来MOFs基材料广泛应用于能量储存与转化领域,但大多数MOFs基材料的低稳定性和低导电性等缺陷限制了其实际应用。通过对MOFs基材料进行改性,如采用共轭度高的有机配体以增加MOFs材料的稳定性,或MOFs衍生物以提高其氧化还原活性位点和导电性,从而达到提高MOFs基电极材料的电化学性能。主要介绍了原始MOFs及其衍生材料如碳材料、金属氧化物、金属硫化物、金属氢氧化物和金属磷化物等在超级电容器电极材料中的最新研究进展。研究表明,多金属MOFs材料或多金属MOFs衍生物有利于提高电极材料的电化学性能,而导电MOFs材料或MOFs衍生物中的碳材料有利于提高电极材料的导电性。最后对MOFs基电极材料在电化学储能领域中的研究做出了展望,指出MOFs基材料的形貌、组分和导电性是未来研究的发展方向。     

Hydroxynaphthoquinone metal complexes as antitumor agents x: synthesis, structure, spectroscopy and in vitro antitumor activity of 3-methyl-phenylazo lawsone derivatives and their metal complexes against human breast cancer cell line mcf-7

The C-3 substituted phenylazo derivatives of lawsone (2-hydroxy-l,4 p-naphthoquinone, III) were synthesized and characterized. The X-ray crystal structure was determined for the ligand 3-(3'-methyl phenylazo) lawsone. The copper complexes of these derivatives were found to possess 1:2 metal stoichiometry and square planar geometries with intermolecular stackings, resulting in antiferromagnetic exchange interactions. The in vitro activity of all the synthesized compounds was examined against human breast cancer cell-line, MCF-7, which revealed enhanced activities for the metal complexes, the highest activity being observed for the copper compound of 3-(3'-methyl phenylazo) lawsone.     

环烷烃及其衍生物的开环催化剂研究进展

综述了国内外在单环及多环化合物选择性开环催化剂的研究进展情况,重点介绍了甲基环戊烷,四氢萘,八氢菲等环烷烃或芳烃化合物的选择性开环反应,总结了不同化合物的选择性开环所需的催化剂,并对选择性开环催化剂的发展前景进行了展望。     

环烷烃及其衍生物的开环催化剂研究进展

综述了国内外在单环及多环化合物选择性开环催化剂的研究进展情况,重点介绍了甲基环戊烷,四氢萘,八氢菲等环烷烃或芳烃化合物的选择性开环反应,总结了不同化合物的选择性开环所需的催化剂,并对选择性开环催化剂的发展前景进行了展望。