新型酰基吡唑啉酮钬(Ⅲ)、钕(Ⅲ)配合物的合成与表征

Synthesis and Characterization of the Novel Acylpyrazolone Holmium(Ⅲ)and Neodymium(Ⅲ)Complexes

酰基吡唑啉酮配合物在分析化学、金属侵蚀、催化,生物,发光材料等领域具有广泛的应用。研究了酰基吡唑啉酮钬(Ⅲ)、钕(Ⅲ)配合物的各种性质。利用1-苯基-3-甲基-吡唑啉酮-5为母体设计合成出了1-苯基-3-甲基-4-己酰基吡唑啉酮-5(HL),再将HL与金属钬和钕的三价盐发生化合反应制备这两种金属的酰基吡唑啉酮配合物,并使用部分光学仪器对化合物进行表征。通过红外光谱分析发现钬(Ⅲ)配合物在476cm^(-1)处有O-Ho键生成、钕(Ⅲ)配合物在469cm-1处有O-Nd键生成;通过差热-热重分析测试可以看出这两种配合物的分解温度较高;通过荧光性能测试得到钬(Ⅲ)配合物,钕(Ⅲ)配合物的最大激发波长和最大发射波长,且发现它们的荧光强度较大。

The acylpyrazolone complexes are widely used in analytical chemistry,metal corrosion,catalysis,biology,luminescent materials and other fields.The properties of acylpyrazolone holmium(Ⅲ)and acylpyrazolone neodymium(Ⅲ)complexes are studied.The 1-phenyl-3-methyl-pyrazolone-5 is used as the matrix to synthesize the 1-phenyl-3-methyl-4-hexanoylpyrazolinone-5(HL),and then the HL is used to react with the trivalent salts of metal holmium and neodymium to prepare the acylpyrazolone complexes of these two metals,and their properties are characterized through some optical instruments.Through the infrared spectroscopy,it is found that the holmium(Ⅲ)complex has an O-Ho bond formed at 476 cm-1,and the neodymium(Ⅲ)complex has an O-Nd bond formed at 469 cm-1;The differential thermogravimetric analysis indicates that the decomposition temperature of these two complexes is relatively high;Through the fluorescence performance test,the maximum excitation wavelength and maximum emis-sion wavelength of holmium(Ⅲ)complex and the neodymium(Ⅲ)complex is obtained,and it is also found that they have a high fluorescence intensity.