{
  "abstract": "π‐Extended conjugation offers the opportunity to unveil new frontiers in materials, coupling redox activity with tunable photophysical properties. Here, we report a new family of π‐conjugated salen ligands bearing phenylene bridges and tunable substituents, together with their corresponding boron difluoride complexes. Owing to the extended π‐delocalization, these new compounds show promising results in electrochemical CO2 reduction to CO, achieving a remarkable Faradaic efficiency for an organocatalyst (up to 56%). Electrochemical, spectroscopic, and computational analyses support a ligand‐centered mechanism in which single‐electron reduction activates the framework for CO2 binding at the imine nitrogen, forming an N‐bound CO2H intermediate. Beyond electrocatalysis, coordination to boron rigidifies the π‐framework, producing emissive boron‐salphen complexes with large Stokes shifts (>7000 cm− 1). These complexes function as efficient photosensitizers for singlet‐oxygen generation, enabling mild oxidative cleavage of alkenes under blue‐light irradiation. This work demonstrates that π‐extension transforms the traditional salphen framework into a redox‐active engine for small‐molecule activation, bypassing the need for transition metals in CO2 electroreduction while simultaneously unlocking good photosensitizing capabilities.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Chemical Sciences, University of Naples Federico II University Campus of Monte S. Angelo Naples Italy",
    "Institute of Inorganic Chemistry University of Bonn Bonn Germany",
    "Department of Chemistry–Ångström Laboratory Uppsala University Uppsala Sweden"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 11,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Vincenzo Langellotti",
      "orcid": "0000-0001-9068-3092"
    },
    {
      "affs": [
        1
      ],
      "name": "André Korzun"
    },
    {
      "affs": [
        1
      ],
      "name": "Morgan J. McKee",
      "orcid": "0000-0002-8636-5638"
    },
    {
      "affs": [
        0
      ],
      "name": "Massimo Melchiorre",
      "orcid": "0000-0002-5842-7600"
    },
    {
      "affs": [
        2
      ],
      "name": "Taegeun Jo",
      "orcid": "0000-0001-7112-6186"
    },
    {
      "affs": [
        1
      ],
      "name": "J. Felipe Estrada‐Ruiz",
      "orcid": "0000-0002-7902-3066"
    },
    {
      "affs": [
        1
      ],
      "name": "Gregor Schnakenburg",
      "orcid": "0000-0001-6489-2106"
    },
    {
      "affs": [
        2
      ],
      "name": "Stefano Crespi",
      "orcid": "0000-0002-0279-4903"
    },
    {
      "affs": [
        0
      ],
      "name": "Francesco Ruffo",
      "orcid": "0000-0003-1624-079X"
    },
    {
      "affs": [
        1
      ],
      "name": "Nikolay Kornienko"
    },
    {
      "affs": [
        1
      ],
      "name": "Alessandro Bismuto",
      "orcid": "0000-0002-5840-1144"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/07jaqksqsd4ey.bib",
  "cited_by": 0,
  "doi": "10.1002/chem.71385",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13715447/",
  "id": "07jaqksqsd4ey",
  "issns": [
    "0947-6539",
    "1521-3765"
  ],
  "landing_url": "https://doi.org/10.1002/chem.71385",
  "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": [
    [
      "heading",
      "Research Article"
    ],
    [
      "openalex",
      "2105|CO2 Reduction Techniques and Catalysts"
    ]
  ],
  "openalex": "W7168081834",
  "pdf_url": null,
  "pmcid": "PMC13715447",
  "pmid": "42437437",
  "published": "2026-07-12",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/07jaqksqsd4ey.ris",
  "sources": [
    {
      "first_seen": "2026-11-01T12:22:45Z",
      "native_id": "PMC13715447",
      "source": "pmc",
      "url": "https://doi.org/10.1002/chem.71385"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "journal-openalex:1605|Supramolecular Chemistry and Complexes",
      "subfield": "organic"
    }
  ],
  "title": "π‐Extended Salphen Scaffolds Enable CO2 Electroreduction and Singlet Oxygen Generation",
  "title_text": "π‐Extended Salphen Scaffolds Enable CO2 Electroreduction and Singlet Oxygen Generation",
  "type": "peer-reviewed",
  "updated_at": "2026-11-01T12:22:45Z",
  "url": "https://research.draconitic.com/paper/07jaqksqsd4ey",
  "venue": "Chemistry (Weinheim an Der Bergstrasse, Germany)",
  "versions": []
}