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本文合成了2种第三主族金属铝和镓咔咯配合物Al(tpfc)、Ga(tpfc)、Al(tpfc)(Py)2、Ga(tpfc)(Py)。测定了在甲苯溶液中,铝和镓咔咯的电子光谱、荧光光谱、荧光量子产率及荧光寿命。在不同溶剂作用下,铝和镓咔咯的电子吸收光谱和荧光光谱的峰位置和强度存在差异。在二氯甲烷溶液中,轴向配体吡啶能促进铝和镓咔咯的π-π堆积。不同轴向配体与金属咔咯的结合能力为:咪唑>4-甲基咪唑>吡啶,铝比镓的咔咯配合物有更强的结合轴向配体的能力。
In this paper, two kinds of aluminum and gallium carbazole complexes Al (tpfc), Ga (tpfc), Al (tpfc) (Py) 2 and Ga (tpfc) (Py) were synthesized. The electronic spectra, fluorescence spectra, fluorescence quantum yields and fluorescence lifetime of aluminum and gallium carbazole in toluene solution were determined. Under different solvents, there are differences between the peak positions and the intensities of the electron absorption spectra and the fluorescence spectra of aluminum and gallium carbazole. In dichloromethane solution, the axial ligand pyridine can promote π-π deposition of aluminum and gallium carbazole. The binding capacities of different axial ligands to metal chelate are: imidazole> 4-methylimidazole> pyridine, which has a stronger ability to bind axial ligands than the gallium chelate complex.