{
  "abstract": "Converting carbon dioxide (CO2) into carbonates is a promising strategy for mitigating carbon emissions. In this study, a series of phosphonium salts/hexafluoroisopropanol (HFIP) catalysts were synthesized and employed in the cycloaddition of CO2 to epoxides to produce cyclic carbonates under mild reaction conditions. The experimental results demonstrated that, at 25 °C and 1 atm CO2 pressure, the catalyst methyltriphenylphosphonium bromide/hexafluoroisopropanol 1/2 (Ph3MePBr/HFIP 1/2) achieved very high yields for monosubstituted (86–96%) as well as 1,1- and 1,2-disubstituted epoxides (66–88%). Density functional theory (DFT) calculations and NMR experiments were employed to elucidate the structure of the Ph3MePBr/HFIP 1/2 catalyst as well as the underlying reaction mechanism. The DFT mechanistic analysis indicated a hydrogen-bond-assisted SN2 pathway, in which the HFIP···Br– pair activates the epoxide and enables efficient CO2 fixation under mild conditions.",
  "abstract_shown": true,
  "affiliations": [
    "Universidad de Alicante , , P.O. Box 99, ,",
    "University of Almería , , Ctra. Sacramento s/n , ,",
    "Università di Salerno , , Via Ponte don Melillo , ,",
    "University of Camerino , , via Madonna delle Carceri , , ,"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 9,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Jose A. Ñíguez"
    },
    {
      "affs": [
        1
      ],
      "name": "Arantxa Forte-Castro"
    },
    {
      "affs": [
        2
      ],
      "name": "Michele Tomasini",
      "orcid": "0000-0002-1366-1401"
    },
    {
      "affs": [
        1
      ],
      "name": "Juana M. Pérez",
      "orcid": "0000-0002-6495-2591"
    },
    {
      "affs": [
        0
      ],
      "name": "Rafael Chinchilla",
      "orcid": "0000-0002-9894-1671"
    },
    {
      "affs": [
        3
      ],
      "name": "Matteo Tiecco"
    },
    {
      "affs": [
        1
      ],
      "name": "Ignacio Fernández",
      "orcid": "0000-0001-8355-580X"
    },
    {
      "affs": [
        2
      ],
      "name": "Laura Falivene",
      "orcid": "0000-0003-1509-6191"
    },
    {
      "affs": [
        0
      ],
      "name": "Diego A. Alonso",
      "orcid": "0000-0002-9069-1188"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5mrhh0f184yha.bib",
  "cited_by": 0,
  "doi": "10.1021/acsomega.6c07310",
  "fulltext_url": null,
  "id": "5mrhh0f184yha",
  "issns": [
    "2470-1343"
  ],
  "landing_url": "https://pubs.acs.org/acsodf/article/doi/10.1021/acsomega.6c07310/5465186/A-Hydrogen-Bonding-Phosphonium-HFIP-Catalyst-for",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [],
  "openalex": null,
  "pdf_url": "https://pubs.acs.org/doi/pdf/10.1021/acsomega.6c07310",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-05",
  "publisher": "American Chemical Society (ACS)",
  "ris": "https://research.draconitic.com/paper/5mrhh0f184yha.ris",
  "sources": [
    {
      "first_seen": "2026-11-06T00:21:08Z",
      "native_id": "10.1021/acsomega.6c07310",
      "source": "crossref",
      "url": "https://pubs.acs.org/acsodf/article/doi/10.1021/acsomega.6c07310/5465186/A-Hydrogen-Bonding-Phosphonium-HFIP-Catalyst-for"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "issn:2470-1343",
      "subfield": "general"
    }
  ],
  "title": "A Hydrogen-Bonding Phosphonium/HFIP Catalyst for Efficient CO2 Conversion into Cyclic Carbonates",
  "title_text": "A Hydrogen-Bonding Phosphonium/HFIP Catalyst for Efficient CO2 Conversion into Cyclic Carbonates",
  "type": "peer-reviewed",
  "updated_at": "2026-11-07T00:21:06Z",
  "url": "https://research.draconitic.com/paper/5mrhh0f184yha",
  "venue": "ACS Omega",
  "versions": []
}