On the Mechano‐Chiral Effect of Vortical Flows on the Dichroic Spectra of 5‐Phenyl‐10,15,20‐tris(4‐sulfonatophenyl)porphyrin J‐Aggregates
Abstract
Phase‐modulated ellipsometry of the J‐aggregates of the title porphyrin shows that the material gives a true CD signal. This confirms that there is a real chiral transfer by mechanical forces, mediated by shear gradient flows, from the macroscopic to the electronic transition level. Dislocations in the structure of the aggregate could justify the formation of chirality at the level of the electronic transitions once the mesophases can be sculptured by hydrodynamic gradient flows.
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Vortices, being induced by stirring, microfluidics or temperature gradients, are capable of controlling the handedness of supramolecular helical assemblies.
“It has been indeed found that vortices, being induced by stirring, microfluidics or temperature gradients, are capable of controlling the handedness of supramolecular helical assemblies.60,[145][146][147][148][149][150][151][152][153][154][155][156][157][158][159]”
From Possible chemical and physical scenarios towards biological homochirality (2022) · cites this paper as [146]
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- Authors
- El‐Hachemi, Z., Arteaga, O., Canillas, A., Crusats, J., Escudero, C., Kuroda, R., Harada, T., Rosa, M., & Ribó, J. M.
- Affiliations
- Universitat de Barcelona (ES)
- The University of Tokyo (JP)
- Corresponding author
- Canillas, Adolf
- ORCID
- Venue
- Chemistry – A European Journal
- Publisher
- Wiley
- Published
- 2008-07-10
- Volume
- 14
- Issue
- 21
- Pages
- 6438-6443
- ISSN
- 0947-6539 (ISSN-L)
- 1521-3765
- OpenAlex
- W1994898525
- Cited by
- 63
- References
- 29
- Citations by year
- 2026: 1 · 2025: 4 · 2024: 1 · 2023: 1 · 2022: 3 · 2021: 1 · 2020: 3 · 2019: 1 · 2018: 4 · 2016: 5 · 2014: 6 · 2013: 6 · 2012: 3
- FWCI
- 4.08
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Chemistry - A European Journal (publishedVersion)
- PubMed (publishedVersion)
- Dipòsit Digital de la Universitat de Barcelona (Universitat de Barcelona) (submittedVersion, public-domain)
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › Porphyrin and Phthalocyanine Chemistry
- Physical Sciences › Chemistry › Spectroscopy › Molecular spectroscopy and chirality
- Physical Sciences › Chemistry › Organic Chemistry › Synthesis and Properties of Aromatic Compounds
- Keywords
- J-aggregates, porphyrins, dichroism, shear flow, vortex flow, chiral transfer, dislocations, mesophase structure, electronic transitions
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