Supramolecular polymerization of biphenyl-cyanostilbenes. Triggering circularly polarized luminescence by self-assembly

We report on the synthesis of a series of cyano-luminogens with cyanostilbene fragments, benzamide units, and a nonplanar biphenyl core. Benzamide units drive supramolecular polymerization, forming helical H aggregates via kinetically controlled self-assembly. A sergeants-and-soldiers experiment rev...

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Authors: Fernández, Miguel; López-Gandul, Lucía; Gómez Aspe, Rafael; Sánchez Martín, Luis
Format: Article
Publication date:2025
Country:España
Institution:Universidad Complutense de Madrid (UCM)
Repository:Docta Complutense
Language:English
OAI Identifier:oai:docta.ucm.es:20.500.14352/122597
Online Access:https://hdl.handle.net/20.500.14352/122597
Access Level:Open access
Keyword:547
Química orgánica (Química)
2306 Química Orgánica
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author Fernández, Miguel
author2 López-Gandul, Lucía
Gómez Aspe, Rafael
Sánchez Martín, Luis
author2_role author
author
author
author_browse Fernández, Miguel
Gómez Aspe, Rafael
López-Gandul, Lucía
Sánchez Martín, Luis
author_facet Fernández, Miguel
López-Gandul, Lucía
Gómez Aspe, Rafael
Sánchez Martín, Luis
author_role author
collection Docta Complutense
description We report on the synthesis of a series of cyano-luminogens with cyanostilbene fragments, benzamide units, and a nonplanar biphenyl core. Benzamide units drive supramolecular polymerization, forming helical H aggregates via kinetically controlled self-assembly. A sergeants-and-soldiers experiment revealed frustrated asymmetry amplification due to the contamination of linear dichroism. The planarization of the central π-conjugated systems enhances aggregation-induced emission affording circularly polarized luminescence-active helical aggregates.
eu_rights_str_mv openAccess
format article
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institution Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
language eng
network_acronym_str ES
network_name_str España
oai_identifier_str oai:docta.ucm.es:20.500.14352/122597
publishDate 2025
publishDateSort 2025
reponame_str Docta Complutense
spelling Supramolecular polymerization of biphenyl-cyanostilbenes. Triggering circularly polarized luminescence by self-assembly Fernández, Miguel López-Gandul, Lucía Gómez Aspe, Rafael Sánchez Martín, Luis 547 Química orgánica (Química) 2306 Química Orgánica We report on the synthesis of a series of cyano-luminogens with cyanostilbene fragments, benzamide units, and a nonplanar biphenyl core. Benzamide units drive supramolecular polymerization, forming helical H aggregates via kinetically controlled self-assembly. A sergeants-and-soldiers experiment revealed frustrated asymmetry amplification due to the contamination of linear dichroism. The planarization of the central π-conjugated systems enhances aggregation-induced emission affording circularly polarized luminescence-active helical aggregates. https://hdl.handle.net/20.500.14352/122597
spellingShingle Supramolecular polymerization of biphenyl-cyanostilbenes. Triggering circularly polarized luminescence by self-assembly
Fernández, Miguel
547
Química orgánica (Química)
2306 Química Orgánica
title Supramolecular polymerization of biphenyl-cyanostilbenes. Triggering circularly polarized luminescence by self-assembly
title_full Supramolecular polymerization of biphenyl-cyanostilbenes. Triggering circularly polarized luminescence by self-assembly
title_fullStr Supramolecular polymerization of biphenyl-cyanostilbenes. Triggering circularly polarized luminescence by self-assembly
title_full_unstemmed Supramolecular polymerization of biphenyl-cyanostilbenes. Triggering circularly polarized luminescence by self-assembly
title_short Supramolecular polymerization of biphenyl-cyanostilbenes. Triggering circularly polarized luminescence by self-assembly
title_sort Supramolecular polymerization of biphenyl-cyanostilbenes. Triggering circularly polarized luminescence by self-assembly
topic 547
Química orgánica (Química)
2306 Química Orgánica
topic_facet 547
Química orgánica (Química)
2306 Química Orgánica
url https://hdl.handle.net/20.500.14352/122597