多核陽(yáng)離子型金屬銥配合物的設(shè)計(jì)合成及其性質(zhì)研究
[Abstract]:Organic electrophosphorescent materials have been the focus of research. Among the many materials, the metal iridium complexes have attracted much attention because of their many advantages. However, the aggregation induced quenching of (ACQ) in iridium phosphorescent materials has been restricting the development of the materials. In recent years, a new method has been developed to suppress the ACQ phenomenon, that is, the synthesis of polynuclear iridium phosphorescent materials. For the metal iridium complexes, the central metal iridium plays an important role in its luminescent properties. It is well known that the strong spin-coupling effect caused by heavy metal atoms is the cause of phosphorescence emitted by the metal iridium complexes. Increasing the number of the central metal iridium may increase the spin-coupling effect. Therefore, the introduction of two or more central metals into a luminescent is a method to influence the properties of the complexes. Therefore, the design and synthesis of polynuclear iridium phosphorescent materials can not only enrich the variety of metal iridium complexes, but also have great significance in practical applications. Based on the above ideas, the polynuclear cationic iridium complexes with good properties have been designed and successfully synthesized, and their applications in chemical sensing and optical devices have been explored. The main works are as follows: (1) the binuclear and trinuclear cationic iridium complexes DC-Ir and TC-Ir. were synthesized by using triazole-pyridine group modified with flexible chain as bridged ligands. Combined with the experimental phenomena, the effect and quenching principle in explosive detection are discussed in detail. (2) two binuclear cationic iridium complexes DI-1 and DI-2. were synthesized using the same bridged ligand L containing flexible chain. Based on its excellent photophysical properties, a monolayer undoped optical device was designed and synthesized, and the properties of the device were studied, and good results were obtained.
【學(xué)位授予單位】:東北師范大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:O641.4
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