{
  "abstract": "The isolobal relationship between imidazolin-2-iminato and cyclopentadienyl ligands makes the iron bis(imidazolin-2-iminato) complex (Im R N) 2 Fe an attractive target as a potential ferrocene analog, yet reported efforts toward its isolation have been unsuccessful. Herein, we report the synthesis of (Im Dipp N) 2 Fe ( 1 ) by protonolysis of Fe 2 Mes 4 with Im Dipp NH, affording a linear, two-coordinate, high-spin Fe(II) complex (S = 2). Its coordinative unsaturation permits binding of THF, an aryl isocyanide, and TEMPO, affording complexes with varied geometries. Unlike ferrocene, the electrochemical properties of 1 depend strongly on its ancillary ligands. Oxidation with AgPF 6 affords a Ag-bound Fe(II) intermediate 1-Ag that undergoes photochemical conversion to the Fe(III) complex [(Im Dipp N) 2 Fe(Solv) 2 ][PF 6 ] ( 2 ). These results establish 1 as a distinct low-coordinate iron complex whose coordination and redox chemistry extend beyond its proposed ferrocene analogy.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Chemistry and Biochemistry",
    "University of Texas at El Paso",
    "New Mexico State University"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 7,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Manuel Saucedo"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Alejandra Gomez-Torres"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Iván E. Arvizo"
    },
    {
      "affs": [
        0,
        2
      ],
      "name": "Bayler G. Barnes"
    },
    {
      "affs": [
        0,
        2
      ],
      "name": "Cory J. Windorff"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Alejandro Metta-Magaña"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Skye Fortier",
      "orcid": "0000-0002-0502-5229"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cvr3s6647gf4a.bib",
  "cited_by": 0,
  "doi": "10.26434/chemrxiv.15010611/v1",
  "fulltext_url": null,
  "id": "cvr3s6647gf4a",
  "issns": [],
  "landing_url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010611/v1",
  "language": null,
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "1605|Organometallic Complex Synthesis and Catalysis"
    ]
  ],
  "openalex": "W7222664776",
  "pdf_url": "https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15010611/v1",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-16",
  "publisher": "American Chemical Society (ACS)",
  "ris": "https://research.draconitic.com/paper/cvr3s6647gf4a.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:24Z",
      "native_id": "10.26434/chemrxiv.15010611",
      "source": "chemrxiv",
      "url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010611/v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:1605|Organometallic Complex Synthesis and Catalysis",
      "subfield": "organic"
    }
  ],
  "title": "(ImRN)2Fe: An Elusive Complex and the Limits of Its Ferrocene Analogy",
  "title_text": "(ImRN)2Fe: An Elusive Complex and the Limits of Its Ferrocene Analogy",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:24Z",
  "url": "https://research.draconitic.com/paper/cvr3s6647gf4a",
  "venue": "ChemRxiv",
  "versions": []
}