J-aggregation of N-sulfobutyl oxacarbocyanine in binary mixtures of organic solvents

Чибисов, А. К.; Slavnova, T. D.; Görner, Helmut

doi:10.1016/j.cplett.2010.08.023

Cited by 8 publications

(7 citation statements)

References 27 publications

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“…A simplified mechanistic picture based on Figure provides explanations for additional experimental observations. There are several factors contributing to the changes in RE and effective length R : the prolonged time of aggregation, , increasing the solvent polarity , and the strong interaction of J-aggregates with polymer molecules (in composite structures), semiconducting, and metal surfaces . These factors contribute to a deviation of the resulting structure from electron–nuclear resonance leading to a disappearance of the J-band (broadening and hypsochromic shift) .…”

Section: Results and Discussionmentioning

confidence: 99%

Molecular Reorganization Energy as a Key Determinant of J-Band Formation in J-Aggregates of Polymethine Dyes

Petrenko

Stein

2015

J. Phys. Chem. A

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This work demonstrates the feasibility of the theory of extended multiphonon electron transitions for the description of optical spectra of polymethine dyes and J-aggregates using quantum chemistry. The formation of a strong absorption band in dye monomers and a J-band in their aggregates is uniformly explained from the electron-nuclear resonance condition. The redistribution of optical band intensities among cyanine dyes with the solvent is also explained. The dependence of the possibility of J-band formation in aggregates on the dye structure is successfully predicted. The results presented provide an insight for rational molecular design and application of polymethine dyes.

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Section: Results and Discussionmentioning

confidence: 99%

Molecular Reorganization Energy as a Key Determinant of J-Band Formation in J-Aggregates of Polymethine Dyes

Petrenko

Stein

2015

J. Phys. Chem. A

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“…There is a general tendency for aggregation to decrease their size upon the addition of organic solvent [118]. For some cyanine dyes the J-aggregates may not be formed at concentrations of any alcohol (EtOH, MeOH, etc) higher than 10% [119] whereas the others can be formed in organic solvent mixtures [120]. The presence of anionic groups favors the shift of equilibrium to the aggregated form.…”

Section: Self-assembly Of Dyes To Form J-aggregatesmentioning

confidence: 99%

Fluorescent J-aggregates of cyanine dyes: basic research and applications review

Bricks

Slominskii

Panas

et al. 2017

Methods Appl. Fluoresc.

323

299

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J-aggregates are fascinating fluorescent nanomaterials formed by highly ordered assembly of organic dyes with the spectroscopic properties dramatically different from that of single or disorderly assembled dye molecules. They demonstrate very narrow red-shifted absorption and emission bands, strongly increased absorbance together with the decrease of radiative lifetime, highly polarized emission and other valuable features. The mechanisms of their electronic transitions are understood by formation of delocalized excitons already on the level of several coupled monomers. Cyanine dyes are unique in forming J-aggregates over the broad spectral range, from blue to near-IR. With the aim to inspire further developments, this review is focused on the optical characteristics of J-aggregates in connection with the dye structures and on their diverse already realized and emerging applications.

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“…The incorporation of a fluoroponytail onto a chromophore moiety might, due to its F-F interactions, thus serve as a promising concept in the just recently consciously opened [71] and eventually long overlooked -research field of dye aggregation in organic solvents [72,73].…”

Section: Discussionmentioning

confidence: 99%

Fluoroponytailed Brooker's merocyanines: Studies on solution behavior, solvatochromism and supramolecular aggregation

et al. 2021

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J-aggregation of N-sulfobutyl oxacarbocyanine in binary mixtures of organic solvents

Cited by 8 publications

References 27 publications

Molecular Reorganization Energy as a Key Determinant of J-Band Formation in J-Aggregates of Polymethine Dyes

Molecular Reorganization Energy as a Key Determinant of J-Band Formation in J-Aggregates of Polymethine Dyes

Fluorescent J-aggregates of cyanine dyes: basic research and applications review

Fluoroponytailed Brooker's merocyanines: Studies on solution behavior, solvatochromism and supramolecular aggregation

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