title: [The study on the structure of 5,10,15,20-tetra-(4-hexadecylpyridiniumyl)porphyrin LB films].
abstract: The film-forming properties of 5,10,15,20-tetra-(4-hexadecylpyridiniumyl)porphyrin bromide (TC16PyP) on the air/water interface were studied. LB films of the amphiphilic porphyrin were prepared on the glass, quartz and SnO2 OTE substrates. The morphology and structure of TC16PyP LB films were characterized by scanning tunnelling microscope, UV-Vis absorption spectra, fluorescence spectra and low-angle X-ray diffraction. The experimental results indicated that the amphiphilic porphyrin TC16PyP has good film-forming properties on the air/water interface, its LB films are stable, in TC16PyP monolayer or LB films the long alkyl chains are not straight and the porphyrin macroring is lying nearly parallel to the substrate surface.
authors.affiliation: The Institute of Photographic Chemistry, Chinese Academy of Sciences, 100101 Beijing.
authors.forename: X
authors.initials: X
authors.lastname: He
authors.forename: Y
authors.initials: Y
authors.lastname: Zhou
authors.forename: T
authors.initials: T
authors.lastname: Li
authors.forename: M
authors.initials: M
authors.lastname: Zhang
authors.forename: T
authors.initials: T
authors.lastname: Shen
mesh_terms: D015394:Molecular Structure; D011166:Porphyrins / Q000737:chemistry*; D011726:Pyridinium Compounds / Q000737:chemistry*; D013057:Spectrum Analysis
chemical_list: D011166:Porphyrins; D011726:Pyridinium Compounds; C492642:tetra-(N-hexadecylpyridiniumyl) porphyrin