Room Temperature Phosphorescence Induced By Cyclodextrin Of Carbaryl,α-Bromonaphthalene In The Presence Of Small Organic Molecule And Its Application

The dissertation mainly comprises of four parts.The first part of the dissertation is the introduction. This part describes the definition and characteristic of phosphorescence spectroscopy and states the deficiency of low temperature phosphorescence. Then the development of room temperature phosphorescence spectroscopy(RTP) is introduced, including solid-substrate RTP, micelle-stabilized RTP, microemulsion stabilized RTP, sensitized and quenched RTP, mixed organized media RTP, non-protected RTP and cyclodextrin induced RTP(CD-RTP). At the same time, the structure, characteristic and application of cyclodextrin and the academic study of cyclodextrin inclusion are introduced. Then the development in mechanism of cyclodextrin-induced RTP is introduced detailedly, including the heavy atom perturber, deoxygenization and the rigidity of the phosphor, especially the action of the third component. The application of CD-RTP in the determination of pesticide is introduced too. At the end of this part, the proposals of dissertation are illuminated.The second, third and fourth part are the main segments of the dissertation.Part two is RTP of carbaryl induced byβ-Cyclodextrin in the presence of 1,2-dibromopropane (DBP). A strong and stable RTP signal can be observed due to the formation ofβ–CD/CBL/DBP inclosing complex and the influence of the DBP. The effects of temperature, pH values and the variation of concentrations of each component on RTP have been investigated. Under the optimal conditions, the analytical curve of CBL gives a liner dynamic range with the RTP intensity. The method is applied to the determination of synthetic samples, a satisfied experimental result is obtained.The third part of the dissertation is RTP ofα-bromonaphthalene(α-BrN) induced byβ-cyclodextrin in the presence of hexahydropyridine(HHP). The research firstly introduces the non-halogenated, heterocyclic small molecule with lone electron HHP into the system ofβ–CD/α-BrN, and a strong and stable RTP signal also can be observed due to the formation ofβ–CD/α-BrN/HHP without deoxygenization. Then...