{
  "abstract": "Luminescent 3d3 chromium(III) complexes are emerging as highly attractive, earth-abundant alternatives to precious 4d or 5d metal complexes in photophysical and photochemical applications. However, the Laporte-forbidden nature of their d-d transitions in the visible region severely hampers the light-harvesting efficiency of conventional photoactive CrIII complexes. To overcome this fundamental bottleneck, we anchored two anthracene-based antennas to the polypyridine ligands in a dinuclear CrIII complex, yielding the complex Cr2-An. The resulting energetically low-lying π-π* transition in the anthracene antenna enhances visible light absorption at 450 nm by a factor of 30 relative to the anthracene-free reference complex, Cr2-ref Both dimers exhibit ferromagnetic ground-state exchange interactions and display room temperature luminescence, albeit originating from different excited states. Specifically, Cr2-An exhibits anthracene-based phosphorescence with a lifetime of ∼150 ns in solution at room temperature, which is likely accessible via two pathways: direct intersystem crossing from the singlet excited state of the anthracene fragment, or intramolecular doublet-triplet energy transfer from the spin-flip excited states of the CrIII centers. These exceptional photophysical properties render Cr2-An an attractive photosensitizer for triplet-triplet annihilation upconversion (TTA-UC) and singlet oxygen-mediated oxidation reactions, delivering photocatalytic performance that surpasses the benchmark [Ru(bpy)3]Cl2 under visible-light irradiation. These findings offer a powerful molecular design strategy for bypassing the intrinsic optical limitations of first-row transition metals, opening new avenues for sustainable and efficient light energy conversion.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Chemistry, University of Konstanz, Universitätsstraße 10, 78464Konstanz, Germany.",
    "Leibniz Institute of Photonic Technology, e. V. Jena, Albert-Einstein-Straße 9, 07745Jena, Germany.",
    "Institute of Inorganic Chemistry, University of Göttingen, Tammannstraße 4, 37077Göttingen, Germany.",
    "Leibniz Institute of Surface Engineering (IOM), Permoserstraße 15, 04318Leipzig, Germany."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 10,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Dennis Fritzler",
      "orcid": "0009-0005-9234-2669"
    },
    {
      "affs": [
        0
      ],
      "name": "Katharina L Deuter"
    },
    {
      "affs": [
        1
      ],
      "name": "Nikita Vashistha"
    },
    {
      "affs": [
        2
      ],
      "name": "Serhiy Demeshko"
    },
    {
      "affs": [
        0
      ],
      "name": "Michael Linseis"
    },
    {
      "affs": [
        0
      ],
      "name": "Pengyue Jin",
      "orcid": "0000-0002-3891-9384"
    },
    {
      "affs": [
        2
      ],
      "name": "Franc Meyer",
      "orcid": "0000-0002-8613-7862"
    },
    {
      "affs": [
        1,
        3
      ],
      "name": "Benjamin Dietzek-Ivanšić",
      "orcid": "0000-0002-2842-3537"
    },
    {
      "affs": [
        0
      ],
      "name": "Rainer F Winter",
      "orcid": "0000-0001-8381-0647"
    },
    {
      "affs": [
        0
      ],
      "name": "Cui Wang",
      "orcid": "0000-0002-7446-6685"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3k7wpd5qbj910.bib",
  "cited_by": 0,
  "doi": "10.1021/jacs.6c13239",
  "fulltext_url": "https://europepmc.org/articles/PMC13674269",
  "id": "3k7wpd5qbj910",
  "issns": [
    "0002-7863",
    "1520-5126"
  ],
  "landing_url": "https://europepmc.org/article/MED/42913597",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2505|Lanthanide and Transition Metal Complexes"
    ]
  ],
  "openalex": "W7215866450",
  "pdf_url": "https://europepmc.org/articles/PMC13674269?pdf=render",
  "pmcid": "PMC13674269",
  "pmid": "42913597",
  "published": "2026-10-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3k7wpd5qbj910.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:20:14Z",
      "native_id": "MED:42913597",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42913597"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2505|Lanthanide and Transition Metal Complexes",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Visible Light-Harvesting Dinuclear Chromium(III) Complex with Anthracene-Based Phosphorescence for Photon Upconversion and Photocatalysis.",
  "title_text": "Visible Light-Harvesting Dinuclear Chromium(III) Complex with Anthracene-Based Phosphorescence for Photon Upconversion and Photocatalysis.",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:20:14Z",
  "url": "https://research.draconitic.com/paper/3k7wpd5qbj910",
  "venue": "Journal of the American Chemical Society",
  "versions": []
}