{
  "abstract": "A series of zirconium (IV) complexes with a bis(N,N-Dimethylethylenediamino)-p-tert-butylcalix[4]arene, (L2H2), and (1S,2S)-N1,N1-Dimethyl-1,2-cyclohexanediamino -p-tert-butylcalix[4]arene, (L3H2), were synthetized and structurally characterized via single crystal X-ray diffraction and NMR. Comparing them with L1 complexes,1 slight increase in the stability towards protic substrates was observed as well as formal HCl elimination and formation of an anilino-anilido complex was observed for L3. Rac-lactide polymerization was attempted as well as intermolecular hydroamination of alkynes. The effect of the coordinating and basic side chains modifies the reactivity of the complexes but still do not show remarkable improvements in the catalytic applications.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 3,
  "authors": [
    {
      "name": "Matteo Cardoso"
    },
    {
      "name": "Jacques Beauchemin-Ratté"
    },
    {
      "name": "Frank Schaper",
      "orcid": "0000-0002-3621-8920"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/60qcenaxhjm78.bib",
  "cited_by": 0,
  "doi": "10.26434/chemrxiv.15010934/v1",
  "fulltext_url": null,
  "id": "60qcenaxhjm78",
  "issns": [],
  "landing_url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010934/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|Supramolecular Chemistry and Complexes"
    ]
  ],
  "openalex": "W7223260146",
  "pdf_url": "https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15010934/v1",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-23",
  "publisher": "American Chemical Society (ACS)",
  "ris": "https://research.draconitic.com/paper/60qcenaxhjm78.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:26Z",
      "native_id": "10.26434/chemrxiv.15010934",
      "source": "chemrxiv",
      "url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010934/v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:1605|Supramolecular Chemistry and Complexes",
      "subfield": "organic"
    }
  ],
  "title": "“NONO” calix[4]arene zirconium complexes with functionalized side chains",
  "title_text": "“NONO” calix[4]arene zirconium complexes with functionalized side chains",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:26Z",
  "url": "https://research.draconitic.com/paper/60qcenaxhjm78",
  "venue": "ChemRxiv",
  "versions": []
}