Analysis of charge distribution on organic cations adsorbed clay surface

层状材料具有有序的结构，层间环境具有多样性。讨论了阳离子染料在阴离子粘土、水滑石、水滑石等表面上的吸附行为。粘土和水滑石表面平整，水滑石表面凹凸不平，层间结构复杂。不同材料的电荷位置、大小、范围和物理性质不同，我们建立了晶体结构模型，并通过分子轨道计算进行了研究。卟啉/合成粘土复合物的形成与卟啉分子在粘土表面上的电荷位置之间的距离大小匹配（“大小匹配规则”）有关，但当以中间层作为化学反应场时，由于分散性，很难作为溶液使用，即光吸收率低。为了减少色散，我们制作了光学透明的纳米层薄膜。以甲基紫精为前体，通过两步主客体交换法，将多氟阳离子偶氮苯衍生物引入到层状层状介孔化合物I层间，首次成功合成了光响应性多层螺旋纳米管。通过光照射，我们观察到反式到顺式以及顺式到反式的转化。

The layerd material has a ordered structure and environment of the interlayer is variety. We discussed about the adsorption behavior of the cation dye to the anion clay surface, niobate, LDH etc. The clay and the LDH have the flat surfaces, niobate has ruggedness and complex interlayer structures. The charge position, size, extent and physical properties are different with each materials.We made the models of the crystal structure and studied by the molecular orbital calculations. The formation of in di-, tri-, tetra-catioic charged porphyrin/synthetic clay complexes was rationalized by a size-matching of distances between the charged sites in the porphyrin molecule on the clay surface ('size-matching rule').When using the interlayer as a chemical reaction field, it is difficult to use as the solution, that is low adsorption rate of light, because of the dispersion. To decrease the dispersion, we made the optically transparent nanolayered thin films. The first successful synthesis of photo-responsive multilayer spiral nanotubes by the introduction of polyfluorinate cationic azobenzene derivative into layered niobate interlayer I by a two-step guest-guest exchange method using the intercalation compound methyl viologen as precursor. By the light irradiation, we observed the trans to cis and the cis to trans conversion.