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Peer-reviewedCC BYNature Chemistry

Supramolecular dye polymers for aggregation-induced photocatalysis

  • Marianna Barbieri1,2
  • David Cappelletti1,2
  • Luca Vaccarin1,2
  • Marco Villa3,2
  • Luca Catalano4,5
  • Khai‐Nghi Truong6,7
  • Fabrizio Nestola8,2
  • Elisa Pelorosso1,2
  • Alessandro Aliprandi1,2
  • Andrea Sartorel1,2
  • Paola Ceroni3,2
  • Francesca Arcudi1
1 more authors
  • Luka Đorđević∞9
9 affiliations
  1. 1Department of Chemical Sciences, University of Padova, Padova, Italy
  2. 2University of Padua
  3. 3Department of Chemistry 'Giacomo Ciamician', Alma Mater Studiorum-University of Bologna, Bologna, Italy
  4. 4Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
  5. 5University of Modena and Reggio Emilia
  6. 6Rigaku Europe SE, Neu-Isenburg, Germany
  7. 7Rigaku Europe
  8. 8Department of Geosciences, University of Padova, Padova, Italy
  9. 9Department of Chemical Sciences, University of Padova, Padova, Italy. [email protected]
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Abstract

Aggregation can profoundly alter the excited-state properties of organic chromophores; however, crystalline supramolecular polymers are often targeted for photocatalytic conversion of solar energy due to favourable charge delocalization or exciton transport. Here we exploit aggregation as a strategy for organic chromophore rigidification to activate photocatalysis by stabilizing localized excited states. Using amphiphilic distyrylanthracene derivatives, we show that aggregation in water enhances the availability of excited states, enabling light-driven transformations of solar energy into storable fuels. We found enhanced reactivity to correlate with increased local excited-state population, underlining the role of self-assembly in restricting intramolecular motion and suppressing unproductive non-radiative decay. We observed photocatalysis to be maximized in kinetically trapped aggregates, outperforming their thermodynamic counterparts, to challenge conventional paradigm that favourable activities require extended assemblies. By achieving excited-state confinement and reactivity instead of charge delocalization, this work reports aggregation-induced photocatalysis as a strategy for preparing photostable, emissive and functional organic photocatalysts in water.

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Cite

BibTeXRIS
BibTeX
@article{barbieri2026supramolecular,
  title = {{Supramolecular dye polymers for aggregation-induced photocatalysis}},
  author = {Marianna Barbieri and David Cappelletti and Luca Vaccarin and Marco Villa and Luca Catalano and Khai‐Nghi Truong and Fabrizio Nestola and Elisa Pelorosso and Alessandro Aliprandi and Andrea Sartorel and Paola Ceroni and Francesca Arcudi and Luka Đorđević∞},
  journal = {Nature Chemistry},
  year = {2026},
  month = may,
  doi = {10.1038/s41557-026-02151-4},
  url = {https://doi.org/10.1038/s41557-026-02151-4},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Supramolecular dye polymers for aggregation-induced photocatalysis
AU  - Marianna Barbieri
AU  - David Cappelletti
AU  - Luca Vaccarin
AU  - Marco Villa
AU  - Luca Catalano
AU  - Khai‐Nghi Truong
AU  - Fabrizio Nestola
AU  - Elisa Pelorosso
AU  - Alessandro Aliprandi
AU  - Andrea Sartorel
AU  - Paola Ceroni
AU  - Francesca Arcudi
AU  - Luka Đorđević∞
PY  - 2026
DA  - 2026/05/18
JO  - Nature Chemistry
DO  - 10.1038/s41557-026-02151-4
UR  - https://doi.org/10.1038/s41557-026-02151-4
AB  - Aggregation can profoundly alter the excited-state properties of organic chromophores; however, crystalline supramolecular polymers are often targeted for photocatalytic conversion of solar energy due to favourable charge delocalization or exciton transport. Here we exploit aggregation as a strategy for organic chromophore rigidification to activate photocatalysis by stabilizing localized excited states. Using amphiphilic distyrylanthracene derivatives, we show that aggregation in water enhances the availability of excited states, enabling light-driven transformations of solar energy into storable fuels. We found enhanced reactivity to correlate with increased local excited-state population, underlining the role of self-assembly in restricting intramolecular motion and suppressing unproductive non-radiative decay. We observed photocatalysis to be maximized in kinetically trapped aggregates, outperforming their thermodynamic counterparts, to challenge conventional paradigm that favourable activities require extended assemblies. By achieving excited-state confinement and reactivity instead of charge delocalization, this work reports aggregation-induced photocatalysis as a strategy for preparing photostable, emissive and functional organic photocatalysts in water.
SN  - 1755-4330
SN  - 1755-4349
ER  -