{
  "abstract": "Dyes incorporating 1,4-dihydropyrrolo [ 3,2-b ]pyrrole (DHPP) units are attractive platforms for organic optoelectronics because of their tunable electronic structures and intense fluorescence. Herein, we report a modular synthetic route to a diverse family of π-expanded DHPPs. The approach relies on double intramolecular direct arylation. This strategy provides efficient access to structurally complex dyes, including helically twisted and highly fused π-systems containing up to 20 conjugated aromatic rings and a unique combination of optical properties. Several of the obtained dyes display pronounced solvatochromism, red emission, and circularly polarized luminescence (CPL). In particular, chiral resolution of a helicene-type derivative enabled detailed chiroptical studies and revealed configurationally stable enantiomers with a good luminescence dissymmetry factor. A combination of experimental and computational analyses provided insight into the structure-property relationships governing their photophysical behavior, with particular emphasis on molecular symmetry and the substituent-dependent influence of nitro groups.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 11,
  "authors": [
    {
      "name": "Damian Kusy"
    },
    {
      "name": "Krzysztof Górski"
    },
    {
      "name": "Carmelo Naim"
    },
    {
      "name": "Francesco Bertocchi"
    },
    {
      "name": "Nicolas Vanthuyne"
    },
    {
      "name": "Krzysztof Noworyta"
    },
    {
      "name": "Bartosz Szymański"
    },
    {
      "name": "Radosław Kamiński"
    },
    {
      "name": "Francesca Terenziani"
    },
    {
      "name": "Denis Jacquemin"
    },
    {
      "name": "Daniel T Gryko"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dn1h37mn5wqfk.bib",
  "cited_by": 0,
  "doi": "10.1002/adom.71894",
  "fulltext_url": null,
  "id": "dn1h37mn5wqfk",
  "issns": [
    "2195-1071"
  ],
  "landing_url": "https://nantes-universite.hal.science/hal-05853516v1",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.sdv"
    ],
    [
      "openalex",
      "1605|Synthesis and Properties of Aromatic Compounds"
    ]
  ],
  "openalex": "W7220848975",
  "pdf_url": "https://nantes-universite.hal.science/hal-05853516/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-05",
  "publisher": "Wiley",
  "ris": "https://research.draconitic.com/paper/dn1h37mn5wqfk.ris",
  "sources": [
    {
      "first_seen": "2026-11-07T12:20:25Z",
      "native_id": "hal-05853516",
      "source": "hal",
      "url": "https://nantes-universite.hal.science/hal-05853516v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:1605|Synthesis and Properties of Aromatic Compounds",
      "subfield": "organic"
    }
  ],
  "title": "Intramolecular Direct Arylation Enables Access to Diverse Photophysical Properties for π‐Expanded 1,4‐Dihydropyrrolo[3,2‐ b ]pyrroles",
  "title_text": "Intramolecular Direct Arylation Enables Access to Diverse Photophysical Properties for π‐Expanded 1,4‐Dihydropyrrolo[3,2‐ b ]pyrroles",
  "type": "peer-reviewed",
  "updated_at": "2026-11-07T12:20:25Z",
  "url": "https://research.draconitic.com/paper/dn1h37mn5wqfk",
  "venue": "Advanced Optical Materials",
  "versions": []
}