title: Influence of meso-substituted tetraphenylporphyrin derivatives structure on their supramolecular organization in floating layers and Langmuir-Blodgett films.
abstract: To study the influence of structure peculiarities of porphyrin derivatives on their supramolecular organization in thin films, 15 new meso-substituted tetraphenylporphyrin derivatives and their metal complexes with substituents (-OC(4)H(9) or -OC(16)H(33)) in para or ortho positions were studied. The films of the studied compounds were obtained by the Langmuir-Schaefer method. The behavior of porphyrin derivatives at the water-air interface was analyzed, and the conformity of the influence of molecular structure on supramolecular organization in floating layers and Langmuir-Blodgett films was defined. The absorption of these films over a wide spectral range was analyzed. The supramolecular organization of meso-substituted tetraphenylporphyrin derivatives was modeled and specified with the help of X-ray diffraction analysis. It was determined that the formation of monomolecular layers is typical for the compounds with short lateral substituents or without substituents. Tetraphenylporphyrins with extensive substituents can form a monolayer only when zinc is included in the molecular structure.
authors.affiliation: Nanomaterials Research Institute, Ivanovo State University, Ermak str. 39, 153025 Ivanovo, Russia. alexkazak86@gmail.com
authors.forename: Alexandr V
authors.initials: AV
authors.lastname: Kazak
authors.forename: Nadezhda V
authors.initials: NV
authors.lastname: Usol'tseva
authors.forename: Sergey G
authors.initials: SG
authors.lastname: Yudin
authors.forename: Valentin V
authors.initials: VV
authors.lastname: Sotsky
authors.forename: Alexandr S
authors.initials: AS
authors.lastname: Semeikin