含Eu(Ⅲ)和Gd(Ⅲ)共轭高分子配合物发光性质研究(英文)

Fluorescent Properties on Conjugated Polymer Complexes Incorporating Eu(Ⅲ) and Gd(Ⅲ)

线性共轭高分子P-1是由单体1,4-二溴-2,3-二正丁氧基萘（M-2）和5,5′-二乙烯-2,2′-联吡啶（M-3）通过Pd催化Heck偶合反应合成得到,高分子配合物P-2和P-3由高分子P-1和Eu（TTA）3·2H2O和Gd（TTA）3·2H2O反应生成。高分子P-1能发射强蓝绿色荧光。高分子配合物P-2和P-3发光性能测试表明,含有Eu（Ⅲ）的高分子配合物P-2不仅显示高分子荧光,而且还显示了Eu（Ⅲ）（^5D0→^7F2）特征荧光,含Gd（Ⅲ）的高分子配合物P-3仅发射高分子的荧光,其荧光波长相对P-1而言,呈现13nm红移。

Linear conjugated polymer P-1 showing strong blue-green fluorescence was synthesized by the polymerization of 1,4-dibromo-2,3-bisbutoxynaphthalene （M-2） with 5,5＇-divinyl-2,2＇-bipyridine （M-3） via Heck reaction. The polymer complexes P-2 and P-3 were obtained by the bipyridyl coordination of P-1 with Eu（TTA）3·2H2O and Gd （TTA）3·2H2O （TTA=2-thenoyltrifluoroacetonate）. Based on the fluorescent property of the polymer and RE（Ⅲ）-containing polymer complex, Eu（Ⅲ）-containing polymer complex P-2 can not only emit the polymer fluorescence, but also has the characteristic fluorescence of Eu（Ⅲ）（^5D0 → ^7F2） under different excited wavelengths. Gd（Ⅲ）-containing polymer complex P-3 only emits the polymer fluorescence, but fluorescence wavelength has a redshift of about 13 nm with respect to P-1.