{
  "abstract": "This study investigates the formation of the hydroxyl anion (OH$^-$) via dissociative electron attachment in 2-propanol as a model system for studying both organic and inorganic molecules. Using high-level CAP-EOM-EA-CCSD calculations and advanced ToF mass spectrometry, we demonstrate that OH$^-$ formation at electron energies between 7 and 11 eV is dominated by two-particle-one-hole (2p-1h) Feshbach resonances. The potential-energy curves reveal a dense manifold of anionic states coupled through numerous avoided crossings, facilitating nonadiabatic population transfer during C-OH bond dissociation. Survival-probability analysis identifies a subset of six long-lived resonances that persist long enough to drive fragmentation, with states 25 and 28 acting as primary drivers by funneling the attached electron into the localized $σ^*(\\mathrm{C{-}OH})$ antibonding orbital. These theoretical predictions are confirmed by experimental observations of a prominent OH$^-$ yield peaking at 8.6 eV, supporting a site-specific fragmentation mechanism that generalizes to the broader class of molecules.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.07324",
  "author_total": 6,
  "authors": [
    {
      "name": "Siddique Ali"
    },
    {
      "name": "Meenakshi Rana"
    },
    {
      "name": "Soumya Ghosh"
    },
    {
      "name": "Narayan Kundu"
    },
    {
      "name": "Aryya Ghosh"
    },
    {
      "name": "Dhananjay Nandi"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/a4qgr0ra1efca.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.07324",
  "fulltext_url": null,
  "id": "a4qgr0ra1efca",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.07324",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.atm-clus"
    ],
    [
      "arxiv",
      "physics.atom-ph"
    ],
    [
      "arxiv",
      "physics.chem-ph"
    ],
    [
      "openalex",
      "3107|Atomic and Molecular Physics"
    ]
  ],
  "openalex": "W7212037355",
  "pdf_url": "https://arxiv.org/pdf/2609.07324",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-07",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/a4qgr0ra1efca.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:48Z",
      "native_id": "2609.07324",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.07324"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "arxiv:physics.chem-ph",
      "subfield": "physical"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.atm-clus",
      "subfield": "amo"
    }
  ],
  "title": "Strong Evidence for Formation of Hydroxyl Anion via 2-Particle-1-Hole Feshbach Resonances",
  "title_text": "Strong Evidence for Formation of Hydroxyl Anion via 2-Particle-1-Hole Feshbach Resonances",
  "type": "preprint",
  "updated_at": "2026-10-30T12:19:48Z",
  "url": "https://research.draconitic.com/paper/a4qgr0ra1efca",
  "venue": "arXiv",
  "versions": []
}