摘要
测定了６个苯甲酸衍生物与铽Ｔｂ（Ⅲ）二元配合物Ｔｂ（ＲＣ６Ｈ４ＣＯ２）３（Ｒ＝ｏ－ＮＨ２、Ｈ、ｐ－ＮＨ２、ｏ－ＯＨ、ｍ－Ｃｌ、ｏ－ＣＯＯＨ）的红外光谱、紫外吸收光谱和荧光光谱．结果表明，在３５０ｎｍ的紫外光激发下配合物的荧光强弱顺序为Ｒ＝ｏ－ＮＨ２＞Ｈ＞ｐ－ＮＨ２＞ｏ－ＯＨ＞ｍ－Ｃｌ＞ｏ－ＣＯＯＨ．并可看到，邻氨基苯甲酸铽配合物除了在本实验系列中荧光发射最强外，甚至比目前所报道的铽的无机发光材料的发光性能还要好．为进一步探索新型绿色发光材料提供了重要的科学依据．还从影响能量传递效率的因素（光谱匹配和能量匹配）出发，初步探讨了该荧光强弱顺序的成因。
The fluorescence properties of six binary complexes of Tb(Ⅲ)with substituted benzoic acid Tb(RC6H4CO2)3 (R=o-NH2,H,p-NH2,o-OH,m-Cl,o-COOH) are studied by means of fluorescence spectra,IR.Spectra and UV.Spectra etc.The experimental results of the emission spectra excited by 350 nm UV-light show the order of emission intensities of complexes is R=o-NH2>H>p-NH2>o-OH>m-Cl>o-COOH.It depends on the efficiency of the intramolecular energy transfer between the ligands and the rare earth ion.An excellent explanation for the experimental results with energies matching and spectra matching is given.
出处
《湖北大学学报（自然科学版）》
CAS
1998年第2期161-164,共4页
Journal of Hubei University：Natural Science
基金
湖北大学青年基金
关键词
苯甲酸衍生物
铽
能量匹配
配合物
发光性质
Derivatives of benzoic acid
Terbium
Fluorescence emission intensity
Energies matching
Spectra matching
