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用富硫dmit的镉配合物与HgI2反应合成一了富硫异核的镉汞配合物{[Me4N2[Cd(dmit)SPh)2(HgI2)}2,并通过元素分析、红外光谱、紫外可见光谱及傅里叶拉曼光谱进行表征。 相似文献
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稀土与β-二酮及2-(2-吡啶)苯并咪唑三元配合物的研究 总被引:2,自引:0,他引:2
As useful fluorescent reagent, rare earth complexes with β-diketones have been extensively studied. Four new rare earth (La, Eu) ternary complexes with β-diketones, (benzoylacetone (Hbza), 2-thenoyltrifluoroacetone, (HTTA)) and organic base (2-(2-pyridyl) benzimidazole, (Hpbi)) have been synthesized and characterized by elemental analysis, IR, NMR. The general formulae of these complexes are [Ln(bza)3(Hpbi)] and[Ln(TTA)3(Hpbi)]. The effects of coordinated base on UV, especially on fluorescent properties of the complexes were discussed. The results showed that the dehydro-Hpbi, pbi-, strongly enhances the fluorescence of the complexes. 相似文献
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剖析了新一代智能手机平台Android的系统架构,应用Struts、Spring和Hibernate构架技术,并在分析校园用户需求的基础上进行了校园一卡通系统设计,探究相关模块的关键技术,实现了基于Android手机平台的校园一卡通系统的基本功能,使系统后期升级与维护变得方便. 相似文献
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二硫代乙二酰胺合镍在硫化镉纳米晶表面的逐层配位组装 总被引:1,自引:0,他引:1
CdS nanocrystals, which were surface modified by poly (nickel dithioxamide) [Ni(DTO)]n, were prepared and characterized. TEM image showed that the shape and the outward aspect of the modified CdS sample were essentially the same as those of the original material and no impurities were found. The characteristic IR peaks at 1 513cm-1 and 870 cm-1 confirmed the success in assembling [Ni(DTO)]n on the surface of CdS. For XPS spectra, the characteristic bands of Ni2p3/2 and Ni2p1/2 appeared at 856 eV and 877 eV indicating the nickel in Ni(Ⅱ) oxidation state. The solid state electronic spectra showed the improvement in surface energy gap, which was changed from 2.38 eV to below 1.91 eV. 相似文献
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在光合作用中,叶绿素的光系统II经一系列氧化还原反应的协同作用,可利用光能来分解水和放出氧气,现已证实系统II(PSII)中的水分解中心(WOC)与高价锰有关,一个由氧架桥的四核簇状锰的活化中心模型已被广泛地接受。本文主要介绍于WOC和模型配合物研究的最近进展。. 相似文献
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以[Me4N]2[M4(SPh)10]和[Me4N]4[S4M10(SPh)16](M=Cd,Zn)为前驱体,采用簇合物裂解法合成了配合物(Bu4N)2[Cd(mnt)2]、(Bu4N)2[M(dmit)2](M=Cd,Zn)以及双核配合物(Me4N)2[Zn2(Sph)2·(S2TTF(SCH2)2)2].运用PM3计算方法得到了各种二硫纶盐配体中硫负离子的静电荷大小关系:mnt2->SPh->dmit2->[(MeS)2TTFS2]2-≈[(CH2S)2TTFS2]2-.在理论计算及实验结果的基础上,探讨了配体上硫负离子的静电荷大小与反应产物间的关系. 相似文献