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二茂铁的电解合成及应用 总被引:1,自引:0,他引:1
二茂铁(Ferrocene)是一种有着广泛用途的金属有机化合物.自20世纪50年代首次发现以来,由于其特殊的化学结构,引起了众多化学家的兴趣,数百种的二茂铁衍生物被制备出来,并应用到各个领域之中.目前,合成二茂铁的主要方法是化学合成法和电化学合成法两种.阐述了二茂铁的性质、二茂铁及衍生物的应用、二茂铁的电解合成及影响因... 相似文献
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乙烯基二茂铁的合成方法,以往是将二茂铁在磷酸等催化剂作用下与乙酸酐或乙酞氯反应合成单乙酰基二茂铁,分离后用氢化锂铝或硼氢化钠还原成a-二茂铁基乙醇,再经脱水制成乙烯基二茂铁。此方法按原始原料计算乙烯基二茂铁的产率很低。本文提出依据二茂铁在低温浓硫酸溶液中,与醛反应生成a-二茂铁正碳离子的反应机理,不经分离即可脱水,制得乙烯基二茂铁。该方法可使乙烯基二茂铁的产率大大提高。其反应式如下: 相似文献
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The ionic liquid l-butyl-3-methylimidazolium tetrafluoroborate is used as electrolyte in the electrochemical determination of the diffusion coefficient of ferrocene as a function of concentration by cyclic voltammetry and chronoamperometry. An improved synthesis of the room temperature ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate is described, which yields a product of high purity suitable for electrochemical purposes. A qualitative color test is discussed which allows the simple detection of silver ion contaminations. The diffusion coefficient of ferrocene appears to be concentration dependent in the solvent chosen. 相似文献
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综述了国内外聚乙二醇二甲醚的各种合成方法及各自的优缺点 ,详细介绍了聚乙二醇二甲醚在各领域的应用 相似文献
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J ChenA.K Burrell G.E CollisD.L Officer G.F SwiegersC.O Too G.G Wallace 《Electrochimica acta》2002,47(17):2715-2724
Novel ferrocene-substituted thiophene and terthiophene compounds, trans-1-(3′-thienyl)-2-(ferrocenyl)ethene and trans-1-((2′,2″:5″,2?-terthiophen)-3″-yl)-2-(ferrocenyl)ethene, have been used to produce homopolymer and copolymer materials. The copolymer of trans-1-(3′-thienyl)-2-(ferrocenyl)ethene with pyrrole and the homopolymer of trans-1-((2′,2″:5″,2?-terthiophen)-3″-yl)-2-(ferrocenyl)ethene were characterised using cyclic voltammetry (CV), UV-visible spectroscopy, scanning electron microscopy (SEM) and four point probe conductivity measurements. Results obtained suggest that the ferrocene moiety plays a catalytic role in the electropolymerisation process. Both the copolymer and homopolymer displayed cyclic voltammograms with redox peaks that can be assigned to the ferrocene moiety and the polymer backbone. The UV-visible spectra and morphology of the copolymer of trans-1-(3′-thienyl)-2-(ferrocenyl)ethene with pyrrole were similar to those of polypyrrole, but the spectra and morphology of the homopolymer of trans-1-((2′,2″:5″,2?-terthiophen)-3″-yl)-2-(ferrocenyl)ethene were different from those of polyterthiophene. The conductivity of the copolymer was determined to be 0.13 S cm−1 whereas that of the homopolymer of trans-1-((2′,2″:5″,2?-terthiophen)-3″-yl)-2-(ferrocenyl)ethene was 82.6 μS cm−1. The copolymer or homopolymer modified Pt disk electrodes facilitated access to the redox centre within Cytochrome C during CV, and their potential use as biosensors has been demonstrated. 相似文献
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This communication describes the formation of high index of refraction polymer thin films using a novel plasma polymerization deposition process. A flowing afterglow plasma reactor was modified to enable sublimation of solid samples into the gas phase for subsequent plasma polymerization. Thin films of plasma polymerized ferrocene were deposited on substrates and subsequently characterized. The refractive index as a function of processing conditions was obtained. Relatively high values of n (∼1.73 at 589 nm) were obtained. The chemical nature of the polymer thin films was characterized using FTIR and XPS spectroscopy. This work demonstrates that plasma polymerization is an enabling technology for the fabrication of photonic thin films that utilize solid state precursors. 相似文献