锌铝水滑石的香豆素-3-甲酸和9-蒽甲酸共插层

以层状锌铝水滑石为主体，乙二醇为分散介质，通过离子交换法，成功地将一对具有给体-受体性质的生色团香豆素-3-甲酸(3-CCA)与9-蒽甲酸(9-ACA)共插入到层状锌铝水滑石层间。采用XRD、IR、TG-DTA等测试技术对共插层产物进行了结构表征，采用UV-visible吸收光谱和荧光光谱研究了产物的光谱特性。结果表明，由于给体-受体进入层间，不仅客体与主体层板存在静电力和氢键相互作用，而且在限域空间内存在客体之间的相互作用，从而产生了给体-受体间的能量转移。

Preparation and characterization of materials obtained by co-intercalation of coumarin-3-carboxylic acid and 9-anthracene carboxylic acid into layered double hydroxides

A pair of chromophores with donor-accepter pro perties, coumarin-3-carboxylic acid (3-CCA) and 9-anthrancene carboxylic acid (9-ACA), have been intercalated into the layered double hydroxide(LDH), Zn_0.66Al_0.34(OH)₂](CO₃)_0.17·0.33H₂O by the method of ion-exchange. The resulting co-intercalation compouds were characterized by X-RAY diffraction, infrated spectroscopy and thermogravimetry techniques. The photochemical properties of the compounds were studied by UV-visible absorption and fluorescence spectroscopy. The results indicate that the confiement of the pair of chromophores, 3-CCA/9-ACA, in their anionic forms within the restricted space of the interlayer region of LDHs favor guest-host and guest-guest interactions, and that the pair of chromophores 3-CCA/9-ACA can participate in energy transfer processes because of the characteristics of their excited states.