{
  "abstract": "Conductive metal-organic frameworks and conjugated coordination polymers (CCPs) are promising platforms for low-power electronics and sustainable energy technologies, yet charge-transport design rules remain elusive. In diamine-based frameworks, Cu-coordinated motifs exhibit electrical conductivities several orders of magnitude lower than those of their Ni analogs, but the origin of this disparity has remained unclear, complicating rational selection of earth-abundant metal nodes for multifunctional materials. Here, we report the synthesis and atomic-resolution characterization of Cu-TABQ, a diamine-based CCP grown as single-crystals from tetraamino-p-benzoquinone and copper ions. Microcrystal electron diffraction reveals a distorted pseudosquare-planar Cu-coordination with asymmetric imine bonding, electron localization, and a structural model consistent with possible local protonation/hydrogen bonding. In contrast, Ni-TABQ adopts a planar, symmetric coordination environment that supports charge delocalization and near-metallic transport. Density functional theory suggests that protonation stabilizes the distorted Cu-TABQ structure and suppresses charge transport. Together, these results support an atomic-level explanation for metal-dependent transport in diamine-based frameworks and establish the metal-ligand coordination environment and protonation as tunable handles for designing conductive frameworks.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Chemistry, Burke Laboratory, Dartmouth College, Hanover, New Hampshire03755, United States.",
    "Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon97403, United States.",
    "Rigaku Americas , The Woodlands, Texas77381, United States."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Hyuk-Jun Noh",
      "orcid": "0000-0001-6324-3219"
    },
    {
      "affs": [
        1
      ],
      "name": "Doran L Pennington"
    },
    {
      "affs": [
        2
      ],
      "name": "Mark Del Campo",
      "orcid": "0009-0003-0819-2481"
    },
    {
      "affs": [
        1
      ],
      "name": "Christopher H Hendon",
      "orcid": "0000-0002-7132-768X"
    },
    {
      "affs": [
        0
      ],
      "name": "Katherine A Mirica",
      "orcid": "0000-0002-1779-7568"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/bn7ymrhq471kn.bib",
  "cited_by": 0,
  "doi": "10.1021/jacs.6c06561",
  "fulltext_url": "https://europepmc.org/articles/PMC13632550",
  "id": "bn7ymrhq471kn",
  "issns": [
    "0002-7863",
    "1520-5126"
  ],
  "landing_url": "https://europepmc.org/article/MED/42937847",
  "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",
      "1604|Metal-Organic Frameworks: Synthesis and Applications"
    ]
  ],
  "openalex": "W7213290016",
  "pdf_url": "https://europepmc.org/articles/PMC13632550?pdf=render",
  "pmcid": "PMC13632550",
  "pmid": "42937847",
  "published": "2026-09-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/bn7ymrhq471kn.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:24Z",
      "native_id": "MED:42937847",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42937847"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:1604|Metal-Organic Frameworks: Synthesis and Applications",
      "subfield": "inorganic"
    }
  ],
  "title": "Modulating the Electronic Properties of Conductive Conjugated Coordination Polymers with Atomic-Level Precision.",
  "title_text": "Modulating the Electronic Properties of Conductive Conjugated Coordination Polymers with Atomic-Level Precision.",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:22:24Z",
  "url": "https://research.draconitic.com/paper/bn7ymrhq471kn",
  "venue": "Journal of the American Chemical Society",
  "versions": []
}