Polymorphic Single-Layer and Fibrillar Nanostructures of J-Aggregates of a Carbocyanine Dye
- Authors: Prokhorov V.V.1, Pozin S.I.1, Perelygina O.M.1, Mal’tsev E.I.1
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Affiliations:
- Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
- Issue: Vol 10, No 4 (2019)
- Pages: 912-917
- Section: Article
- URL: https://journals.rcsi.science/2075-1133/article/view/208008
- DOI: https://doi.org/10.1134/S207511331904035X
- ID: 208008
Cite item
Abstract
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.
About the authors
V. V. Prokhorov
Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Author for correspondence.
Email: vprokh@phyche.ac.ru
Russian Federation, Moscow
S. I. Pozin
Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: vprokh@phyche.ac.ru
Russian Federation, Moscow
O. M. Perelygina
Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: vprokh@phyche.ac.ru
Russian Federation, Moscow
E. I. Mal’tsev
Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: vprokh@phyche.ac.ru
Russian Federation, Moscow