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最近研究表明d10金属离子与氰基构成的配合物一般具有良好的发光性能,是一种潜在的光致发光功能材料。选择氰化银和三苯基磷在四氢呋喃溶剂中反应,产物经过N,N′-二甲基甲酰胺萃取后再通过乙醚扩散,成功地合成出了一个氰化银基配合物,分子式为Ag(PPh3)3(CN).(DMF).0.5(H2O)。通过元素分析、红外光谱以及结合配体的结构特点推测出配合物应该是由Ag(PPh3)3(CN)单元、游离的N,N′-二甲基甲酰胺和水溶剂分子组成。在Ag(PPh3)3(CN)单元中银离子处于变形的四面体中心,分别和一个氰基配体的C原子和3个三苯基磷配体的磷原子配位。荧光光谱研究表明配合物经325 nm光的激发后在440 nm处发出较强的蓝紫色荧光。通过分析配合物及其配体的发光行为指出配合物的发光可以归属为受金属离子微扰的配体(三苯基磷)发光。
Recent studies show that d10 metal ions and cyano complexes generally have good luminescence properties, is a potential photoluminescence functional materials. Select silver cyanide and triphenylphosphine in tetrahydrofuran solvent, the product after N, N’-dimethylformamide extraction and then through the ether diffusion, successfully synthesized a silver cyanide complex, the formula is Ag (PPh3) 3 (CN). (DMF) .0.5 (H2O). Through elemental analysis, IR spectra and structural features of the binding ligands, it is inferred that the complex should consist of Ag (PPh3) 3 (CN) units, free N, N’-dimethylformamide and water solvent molecules. In Ag (PPh3) 3 (CN) units, silver ions are in the center of the deformed tetrahedron and coordinate to the C atom of one cyano ligand and the phosphorus atom of three triphenylphosphorus ligands, respectively. Fluorescence spectroscopy studies show that the complexes emit strong blue-purple fluorescence at 440 nm after being excited by 325 nm light. The luminescence of the complex and its ligand indicates that the luminescence of the complex can be attributed to the luminescence of the ligand (triphenylphosphine) perturbed by metal ions.