| In this thesis, two pairs of chromophores with donor-acceptor properties, coumarin-3-carboxylic acid (3-CCA) and 9-anthracene carboxylic acid (9-ACA), 4-methoxyphenylacetic acid (4-MAA) and 2-naphthalenesulfonic acid (2-NSA) have been intercalated and into the layered double hydroxide by the method of ion-exchange procedures, respectively. The obtained mono-intercalation and co-intercalation compounds were characterized by X-ray diffraction, infrared and thermogravimetry techniques. The guest molecular structures were investigated utilizing ab initio (HF/6-31G) method by G98w. From the X-ray diffraction data, the guest size and the charge density of the oxygens of the guest, and the orientation of these anions between the layers were determined and the photochemical properties of the obtained compounds were studied by UV-Vis absorption and fluorescence spectroscopy. These results indicate that the confinement of the pairs of chromophores, 3-CCA-9-ACA and 4-MAA-2-NSA in their anionic forms within the restricted space of the interlayer region of hydrotalcites are in favor of guest-host interaction and guest-guest interaction, and that the pairs of chromophores, 3-CCA-9-ACA and 4-MAA-2-NSA can give rise to energy transfer processes because of the characteristics of their excited states. The co-intercalation compounds could be developed for a novel class of layered light energy storage and conversion materials. |
