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Information × Registration Number 2112U001380, Article popup.category Thesis Title popup.author popup.publication 01-01-2012 popup.source_user Сумський державний університет popup.source http://essuir.sumdu.edu.ua/handle/123456789/34890 popup.publisher Sumy State University Description Molecular layers of polymethine dye long conjugation chain on glass contain several types of molecular nanocomponents. The number and type of the components depend on the thickness of a layer. In thin layers, only monomolecular components (all-trans-stereoisomers and cis-isomers) are present. We studied a series of four dicarbocyanines and determined the steric structure of the nanocomponents of the layers. The layers of less than 1 monolayer thick contain up to 4 monomeric components. For monocis- and dicisisomers of the dyes studied, which are obtained from the all-trans form upon rotation of fragments of a molecule around different bonds in the conjugated chain, the steric models were constructed. It was shown that in the series of polymethine molecules differing in the substituents and their positions in the chain there is a correlation between the intensity of the absorption bands of the certain components and the steric hindrance of molecular isomers. The above correlation may be used for the determination of the steric structure of monomeric components of the layer. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/34890 popup.nrat_date 2025-05-12 Close