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K. S. Nikitin¹, Yu. V. Polenov¹, A. V. Kazak^2,3, E. V. Egorova¹

Author affiliations
¹Ivanovo State University of Chemistry and Technology,
7 Sheremetevsky Ave., Ivanovo, 153000, Russia
E-mail: nikitin_kost@mail.ru
²Nanomaterials Research Institute, Ivanovo State University,
39 Ermak St., Ivanovo, 153025, Russia
³Moscow Region State University,
24 Very Voloshinoy St., Mytishchi, 141014, Russia

Abstract
Floating layers of N,N'-di(3,5-dimethylphenyl)diimide of 1,1'-binaphthyl-4,4',5,5',8,8'-hexacarboxylic acid (bis(3,5-(CH₃)₂Ph)Cub) and Langmuir-Schaefer films of this compound on quartz and silicon substrates were obtained. By means of electron absorption spectroscopy it was found that only H-type aggregates contained in the film structure. The average size of the aggregates was determined using atomic force microscopy. It is shown that thiourea dioxide does not change the structure of the studied film, in contrast to its previously studied effect on the film formed by N,N'-di(4-chlorophenyl)diimide of 1,1'-binaphthyl-4,4',5,5',8,8'-hexacarboxylic acid containing aggregates of two types: J and H.

Keywords: cubogen, thiourea dioxide, Langmuir-Schaefer films, UV-Vis spectrum, atomic force microscopy