Influence of Substituent in Conjugated Chain of Molecules on Nanocomponents Composition of Polymethine Dye Films
Electronic Archive of Sumy State University
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Influence of Substituent in Conjugated Chain of Molecules on Nanocomponents Composition of Polymethine Dye Films
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| Creator |
Starovoytov, A.A.
Kaliteevskaya, E.N. Krutyakova, V.P. Razumova, T.K. |
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| Subject |
Polymethine
Cyanine Isomer Film |
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| 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. |
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| Publisher |
Sumy State University
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| Date |
2014-05-23T09:45:15Z
2014-05-23T09:45:15Z 2012 |
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| Type |
Article
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| Identifier |
Influence of Substituent in Conjugated Chain of Molecules on Nanocomponents Composition of Polymethine Dye Films / A. A. Starovoytov, E. N. Kaliteevskaya, V. P. Krutyakova, T. K. Razumova
// Nanomaterials: Applications & Properties (NAP-2012) : 2-nd International conference, Alushta, the Crimea, September 17-22, 2012 / Edited by: A. Pogrebnjak. - Sumy : Sumy State University, 2012. - V. 1, No2. - 02NFC20-02NFC20
http://essuir.sumdu.edu.ua/handle/123456789/34890 |
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| Language |
en
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