Polymorphic Single-Layer and Fibrillar Nanostructures of J-Aggregates of a Carbocyanine Dye
- Autores: Prokhorov V.1, Pozin S.1, Perelygina O.1, Mal’tsev E.1
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Afiliações:
- Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
- Edição: Volume 10, Nº 4 (2019)
- Páginas: 912-917
- Seção: Article
- URL: https://journals.rcsi.science/2075-1133/article/view/208008
- DOI: https://doi.org/10.1134/S207511331904035X
- ID: 208008
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Resumo
Abstract—J-aggregates of a carbocyanine dye (pyridinium salt of 3,3'-di-(γ-sulfopropyl)-4,5,4',5'-di(tieno-3'',2'')-9‑ethyl-tiatrimethine cyanine betaine) (CC) were studied via the high-resolution AFM method at the mesoscale and nanoscale. They were found to exist in two structurally different polymorphic forms of single layers and fibrils. The class of single-layer J-aggregates consists of irregular micron sheets and giant submicron tubes, whose structure is identical to tubular J-aggregates of other cyanine dyes. The fibrillar J-aggregates are composed of 3-nm-high fibrils forming the networks owing to merging and branching, as well as of “elementary” fibrils with a height close to the molecular sizes of dye. Structural models of elementary fibril with molecular “staircase” and “ladder” stacking types were proposed as well.
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Sobre autores
V. Prokhorov
Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Autor responsável pela correspondência
Email: vprokh@phyche.ac.ru
Rússia, Moscow
S. Pozin
Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: vprokh@phyche.ac.ru
Rússia, Moscow
O. Perelygina
Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: vprokh@phyche.ac.ru
Rússia, Moscow
E. Mal’tsev
Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: vprokh@phyche.ac.ru
Rússia, Moscow