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    Investigation of calix[4]arene-orphyrin and its Palladium(II) and Zinc(II) complexes at air/water interface and in Langmuir-Blodgett film

    Year: 2002

    Journal: Thin Solid Films 413 (2002) 224-230, 20111221

    Authors: Lin Zhang, Yu Zhang, Hanbing Tao, Xiaojuan Sun, Zijian Guo, Longgen Zhu

    Organizations: State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, Nanjing University, Nanjing 210093, China

    Calix[4]arene-orphyrin and its Palladium(II) and Zinc(II) complexes are synthesized and studied at airywater interface and in Langmuir-Blodgett film.Their properties are measured by pressure-area isotherm, UV-visible and Fourier transform infrared spectroscopy. Molecular geometry of the calix[4]arene-orphyrin compound is optimized at ab initio RHF/STO-3G level.UV-Visible spectra of the three compounds confirm that the π-π interaction of porphyrin moieties induces H-aggregation of the calix[4]arene-orphyrin and its Palladium complex and J-aggregation of its Zinc complex in Langmuir-Blodgett film.The ordering of alkyl chain for the three compounds is discussed based on infrared data, which is confirmed by their pressure-area isotherms at aqueous subphase.