Synthesis And Spectral Study Of ICT Compounds Containing Pyridine And Carbazole

Chapter 1:The research progress and application of charge transfer were described in detail.The classification, characteristics and application of CTC, the recent development and application of pyridine derivatives, carbazole derivatives were reviewed briefly.Chapter 2:Complex of CuI-Pyridine was synthesized and characterized by IR and fluorescence, and was a new solid fluorescent material.Its solubility was tested, and the luminescence properties of complex were studied. The results showed that CuI-Pyridine is non-water-soluble, which could emit strong and stable yellow fluorescence (Emmax=577nm) in solid state, but its fluorescence disappeared when complex was dissolved.Chapter 3:To improve the physical properties of CuI-Pyridine, inclusion complex of CuI-Pyridine-β-CD was synthesized by solution mixing and characterized by IR,1H NMR and fluorescence, and the preliminary electrode response study between modified electrode and some gas have been done by the method of electrochemical analysis. The results showed that: CuI-Pyridine-β-CD was water-soluble, which could emit strong and stable fluorescence (Emmax=563nm in solid state), and its fluorescence could not disappear.The experiment revealed that there was competitive inclusion between CH4 and CuI-Pyridine-p-CD. With the addition of CH4, the fluorescence intensity of inclusion decrease gradually. Moreover, there was significant response between CH4 and CuI-Pyridine-β-CD modified electrode.Chapter 4:4-Iodopyridine was synthesized by diazotization and iodine substitution with 4-amino-pyridine as the raw material, and then combined with carbazole to synthesize a new light-emitting dyes—N-Pyridyl carbazole. Finally, form complex with Cul.The structure of Complex and the intermediate product have confirmed by IR,1H NMR. We have studied their fluorescence properties and discussed the relations between structure and luminescence properties.Since the functional group of carbazole was introduced to the end of molecular, a red shift occurred from 365nm to 424nm and the fluorescent emission peak intensity was increased strongerly. It provided a theoretical basis of new fluorescent dyes's development and application.Chapter 5:A new ICT compound:Tri(N-ethylycarbazole-3-yl) formolite-2,4,7-triaminofluorenone(TECzFTAF) has been designed and synthesized and confirmed by IR,1H NMR. Carbazole was a strong electron donor and fluorenone was a strong electron acceptor, carbazole group and fluorenone group were introduced into a molecule frame, a new organic charge-transfer compound was synthesized, which has an excellent charge-transfer effect. Its fluorescence properties were researched preliminarily, Exmax was at 294nm, Emmax was at 362nm or 459nm. In the future, the two emission peak of this compounds will be expected a strong application potential in the area of photoelectron integration, detection of biological molecules, diagnosis of medical, three-dimensional optical information storage, dynamics of optical and the conversion of excitation and emission in two-photon.