Adsorption and intercalation of +2 charged cationic [3-(trimethylammonio)propoxo(methoxo)(tetraphenylporphyrinato)-antimony(V)](2+) (1a) into an artificially synthesized smectite clay were studied. The red shift of Soret band in UV-spectra for la in an aqueous colloidal clay solution and analyses of X-ray diffraction of the obtained complex between 1a and the clay indicate the intercalation of la into the clay interlayer. Ammonium cationic part on an axial ligand led to the effective nonaggregated intercalation of la into the clay.