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设计合成了一种D-π-A型(Donor-π-Accept)氰基羧酸二茂铁配体,它与有机锡化合物二丁基氧化锡(n-Bu2SnO)反应,得到了一种新型二茂铁有机锡羧酸酯配合物。通过1H NMR、119Sn NMR、IR、FT-IR、UV-Vis和元素分析等对配体及其配合物进行了全面的表征,利用X-射线单晶衍射测定了配合物的晶体结构,运用CV和Z-scan测试方法系统地研究了它们的电化学和双光子吸收性质。结果表明:与配体相比较,配合物更难被氧化,且具有更大的双光子吸收截面。 相似文献
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Two new ligands, S-benzyl-β-N-[10-ethylphenothiazine-3-methylene] dithiocarbazate (HL1), S-methyl-β-N-[10-ethylphenothiazine-3-methylene] dithiocarbazate (HL2), and their complexes which exhibit intensive two-photon excited (TPE) fluorescence at 800 nm laser pulses in the femtosecond regime, are synthesized and fully characterized. The measured power dependence of the fluorescence signals provides a direct evidence for TPE. All of them exhibit a large two-photon absorptive crosssection. The two-photon-excited fluorescence spectra of them are compared and contrasted with the corresponding results obtained from the one-photon excitation. Emission peaks of the ligands and their complexes are observed mostly at the region 550-595 nm in the TPE fluorescence spectra. 相似文献
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IntroductionDimericcopper(II)carboxylatescontainingavarietyofoxygenandnitrogen donorligandshavebeenextensivelyinvestigatedandtheirpreparations ,magneticandspectralpropertieshavebeenreviewed .1 5Differentkindsofcopper(II)carboxylateadductshavebeensynthesizedandalsodinuclearcopper(II)complexeshavebeenearlystud iedasusefulmodelstoestablishmagneto structuralcorre lationsforspinexchangebetweenmetalions .Inparticu lar,theoccurrenceofdicopperionsattheactivesiteofthevariousformsoftheoxygencarrierpro… 相似文献
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1 Introduction Two photonabsorption (TPA )isanimportantnonlinearabsorptionprocessinbothbasicandappliedresearches.Formanyyears,duetotherelativelysmallTPAcross sectionsofmostmaterials,two photonprocesseswerefoundlimitedapplications.Lately ,greatprogresseshav… 相似文献
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