系列M配合物(M=Cr～(3+),Al～(3+),Ni～(2+))的合成、结构及发光性能对比

【作者】 陈丁娜；

【导师】 牛淑云；

【作者基本信息】 辽宁师范大学 ， 无机化学， 2005， 硕士

【摘要】 采用常规法和非常规法,合成了6种（1-6）具有荧光及延迟荧光的金属配合物,部分配合物（1-4）得到了单晶. 经X-光单晶衍射测定,确定了它们的结构,得到的粉末及微晶配合物（5-6）依据多种测试手段也推测出了组成. 研究了各化合物的FP,UV-VIS, IR,等光谱性质. 其分子式如下: （1）Cr（acac）₃（Hacac=acetylacetone） （2）Cr（oxinate）₃·CH3OH （3）Cr（bacac）₃（Hbacac=benzoyl acetone） （4）Al（acac）₃（Hacac=acetylacetone） （5） Al（o-hobz）₃（o-hobz=o-hydroxybenzoic） （6） Al（p-abz）₃（p-abz=p-aminobenzoic） （7）{[Ni（imH）₄（H₂O）₂][Ni（imH）₄（TCB）（H₂O）₂]}n（imH=imidazole,H4TCB=1,2,4,5-benzenetetracarboxylic acid） （8） [Ni（phen）（H₂O）（o-tpha）]·H₂O（o-tpha=phthalic,phen=1,10-phenanthroline） （9）[Ni（H₂O）₃（phen）（C₆H₅COO）] ·（C₆H₅COO） 本文着重对合成的6种（1-6）和已有的3种配合物（7-9）进行了荧光光谱及激发光谱的研究. 发现9 种配合物在室温下不仅具有荧光性质,而且还表现出很好的延迟荧光性质.对它们的发光原理及发光过程进行了讨论. 通过与基准物（相应原料化合物）荧光强度比较,发现9 种配合物的荧光性质较基准物都有不同程度的变化. 其中明显的三方面是:1. 配合物发光位置较基准物比较略有位移;2. 大部分配合物与配体比较,发光强度有所更多还原

【Abstract】 Taking the regular and irregular methods, six novel luminescent and delayed luminescent complexes （1-6） have been synthesized. Their structure （1-4） have been confirmed by Single-Crystal X-ray four-circle diffraction. And the composition of complex five and complex six have been decided by multimeasure. The FP, UV-VIS and IR properties were investigated. Their formulas are presented as following: （1）Cr（acac）₃（Hacac=acetylacetone） （2）Cr（oxinate）₃·CH₃OH （3）Cr（bacac）₃（Hbacac=benzoyl acetone） （4）Al（acac）₃（Hacac=acetylacetone） （5） Al（o-hobz）₃（o-hobz=o-hydroxybenzoic） （6） Al（p-abz）₃（p-abz=p-aminobenzoic） （7）{[Ni（imH）₄（H₂O）₂][Ni（imH）₄（TCB）（H₂O）₂]}n （imH=imidazole,H4TCB=1,2,4,5-ben-zenetetracarboxylic acid） （8） [Ni（phen）（H₂O）（o-tpha）]·H₂O（o-tpha=phthalic,phen=1,10-phenanthroline） （9）[Ni（H₂O）3（phen）（C₆H₅COO）] ·（C₆H₅COO） The excitation and emission spectra of six novel and other three complexes were mainly studied. It was founded that the nine complexes are luminescent at room temperature. Especially, the nine complexes represent delayed luminescent property. The emitting principle and process were also discussed. Comparing with the reference （appropriate raw materials）,the fluorescence intensity of these nine complexes varied to some extent :the fluorescence intensity increase sharply in the condition of fixedλmax; the fluorescence intensity increased andλmax changed at the same time. The relationships between the fluorescence intensity and organic ligands, metal ions as well as molecular structures was analyzed, and the major factors the affect fluorescence properties were obtained. In addition, the delayed fluorescence of these nine complexes has also been done, and the rule of changes between delayed fluorescence intensity and delaytime has been founded. And what we have done , perhaps, will be beneficial to further investigate luminous complexes and materials.更多还原