{
  "abstract": "The structural chemistry of alkali metal alkoxides remains challenging to elucidate because of their high reactivity and tendency to form ill-defined aggregates. Herein, we report two complementary pincer nickel platforms that serve as metalloligands to stabilize well-defined multinuclear aggregates of sodium and potassium alkoxides. The reaction of a POCOP–NiBr pincer complex with MeLi or NaOtBu led to unexpected double C–O bond cleavage of the pincer framework, generating anionic oxygen-rich fragments that assembled into a zwitterionic trinuclear lithium complex {(η3-allyl)Ni}2(μ,κP:κO-iPr2PO)4[Li3(Br)(κO-iPr2P(O)Me)] (1) and a hexanuclear sodium cluster {(η3-allyl)Ni}2(μ,κP:κO-iPr2PO)4[Na6(μ4-OtBu)2(μ-OtBu)2(μ-OtBuH)2] (2). In stark contrast, the unsymmetrical complex (κN,κC,κN′-NCN)NiBr (3) reacts with KOtBu to form a centrosymmetric trinickel species {(κN,κC,κN′-NCN:η4-Ar,η4-Ar)Ni(μ3-O)K2}2Ni(μ3-OtBu)4 (4) bridged by four KOtBu moieties, in which the NCN ligand framework remains intact. In 4, the central Ni adopts a distorted tetrahedral geometry coordinated by four oxygen atoms, while each potassium center completes its coordination sphere through three oxygen atoms and an η4-interaction with a pendant phenyl group, revealing a rare κK,κO bridging mode for KOtBu. Comprehensive single-crystal X-ray diffraction analyses confirm all structures. These results demonstrate the capacity of pincer nickel halides to stabilize otherwise elusive alkali metal alkoxide aggregates and provide new insights into the ligand-directed structural diversity of these important reagents.",
  "abstract_shown": true,
  "affiliations": [
    "Tianjin Normal University , , 393 BinShui West Road , ,",
    "Université de Montréal , , Complexe Des Sciences, 1375 Avenue Thérèse-Lavoie-Roux, Montréal , ,"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Yating Liu"
    },
    {
      "affs": [
        0
      ],
      "name": "Weichao Song"
    },
    {
      "affs": [
        1
      ],
      "name": "Daniel Chartrand"
    },
    {
      "affs": [
        0
      ],
      "name": "Pengchong Xue",
      "orcid": "0000-0002-8335-6138"
    },
    {
      "affs": [
        0
      ],
      "name": "Jingjun Hao",
      "orcid": "0000-0001-6213-8409"
    },
    {
      "affs": [
        1
      ],
      "name": "Davit Zargarian",
      "orcid": "0000-0002-0207-7007"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3fcavhppz07e1.bib",
  "cited_by": 0,
  "doi": "10.1021/acsomega.6c08837",
  "fulltext_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13718217/?tool=EBI",
  "id": "3fcavhppz07e1",
  "issns": [
    "2470-1343"
  ],
  "landing_url": "https://pubs.acs.org/acsodf/article/11/42/65886/5451593/Pincer-Nickel-Metalloligands-for-the-Stabilization",
  "language": "eng",
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Article"
    ],
    [
      "openalex",
      "1605|Coordination Chemistry and Organometallics"
    ]
  ],
  "openalex": "W7222163732",
  "pdf_url": "https://pubs.acs.org/doi/pdf/10.1021/acsomega.6c08837",
  "pmcid": "PMC13718217",
  "pmid": "42959727",
  "published": "2026-10-15",
  "publisher": "American Chemical Society (ACS)",
  "ris": "https://research.draconitic.com/paper/3fcavhppz07e1.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:39Z",
      "native_id": "10.1021/acsomega.6c08837",
      "source": "crossref",
      "url": "https://pubs.acs.org/acsodf/article/11/42/65886/5451593/Pincer-Nickel-Metalloligands-for-the-Stabilization"
    },
    {
      "first_seen": "2026-10-31T00:20:37Z",
      "native_id": "PMC:PMC13718217",
      "source": "europepmc",
      "url": "https://europepmc.org/article/PMC/PMC13718217"
    },
    {
      "first_seen": "2026-11-01T00:20:52Z",
      "native_id": "MED:42959727",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42959727"
    },
    {
      "first_seen": "2026-11-02T12:22:18Z",
      "native_id": "PMC13718217",
      "source": "pmc",
      "url": "https://doi.org/10.1021/acsomega.6c08837"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:1605|Coordination Chemistry and Organometallics",
      "subfield": "organic"
    }
  ],
  "title": "Pincer Nickel Metalloligands for the Stabilization of Alkali Metal Alkoxide Aggregates",
  "title_text": "Pincer Nickel Metalloligands for the Stabilization of Alkali Metal Alkoxide Aggregates",
  "type": "peer-reviewed",
  "updated_at": "2026-11-02T12:22:18Z",
  "url": "https://research.draconitic.com/paper/3fcavhppz07e1",
  "venue": "ACS Omega",
  "versions": []
}