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采用溶剂热法合成出一例具有双核结构的铜(Ⅰ)配合物[Cu2(μ-Ⅰ)2(phen)2].CH3CN(1)(phen=1,10-邻菲咯啉)。采用元素分析、IR和单晶X-射线衍射表征其结构,同时分别测试了配合物1在DMSO溶液中和固态时的荧光光谱及荧光寿命。在室温条件下,配合物1的DMSO溶液在369和380nm有最大发射峰,在460nm处有一个肩峰,呈现蓝紫色荧光;在室温固体状态下,配合物1在650～678nm处有一宽谱带的强发射峰,呈现强的红色荧光,这均是基于配体中心激发单重态到基态单重态(π*→π)的跃迁发射。配合物1荧光衰减过程包含双组分,在DMSO溶液中的荧光寿命τ1和τ2分别为1.36和5.98μs,对应的衰减因子分别为50.21%和49.79%;固态时的荧光寿命τ1和τ2分别是1.42和8.85μs,对应的衰减因子分别为51.15%和48.85%。
An example of Cu (Ⅰ) complex [Cu2 (μ-Ⅰ) 2 (phen) 2] .CH3CN (1) (phen = 1,10-phenanthroline) with a binuclear structure was synthesized by solvothermal method. The structure of the complex 1 was characterized by elemental analysis, IR and single crystal X-ray diffraction. The fluorescence spectra and fluorescence lifetime of complex 1 in DMSO solution and in solid state were tested respectively. At room temperature, the DMSO solution of complex 1 has the maximum emission peak at 369 and 380 nm, and a shoulder peak at 460 nm, showing blue-violet fluorescence. Under the solid state at room temperature, complex 1 has a broad spectrum at 650-678 nm The strong emission bands of the bands show a strong red fluorescence, which are all based on the transition from the excited singlet state to the ground state singlet state (π * → π) at the ligand center. Fluorescence decay of complex 1 contained two components, the fluorescence lifetime τ1 and τ2 in DMSO solution were 1.36 and 5.98μs, respectively, and the corresponding attenuation factors were 50.21% and 49.79% respectively. The fluorescence lifetime τ1 and τ2 in solid state were 1.42 and 8.85μs, the corresponding attenuation factors were 51.15% and 48.85% respectively.