{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T13:01:41Z","timestamp":1791378101416,"version":"4.3.2"},"reference-count":35,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T00:00:00Z","timestamp":1789084800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T00:00:00Z","timestamp":1789084800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/100012818","name":"Comunidad de Madrid","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100012818","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Angew Chem Int Ed"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Being an iconic spherical molecule exclusively composed of\n                    <jats:italic>sp<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    carbon atoms, the development of increasingly efficient synthetic receptors for C\n                    <jats:sub>60<\/jats:sub>\n                    fullerene remains a pressing challenge in supramolecular chemistry. However, as tighter hosts that employ most of their cavity volumes to complementarily encapsulate C\n                    <jats:sub>60<\/jats:sub>\n                    are developed, steric constraints may emerge that mechanically trap this ball\u2010shaped guest within their lumen. Here we explore this unprecedented scenario with a rigid bisporphyrin\n                    <jats:italic>\n                      sp\n                      <jats:sup>2<\/jats:sup>\n                    <\/jats:italic>\n                    \u2010receptor that acts as a \u201cmechanical jail\u201d for C\n                    <jats:sub>60<\/jats:sub>\n                    . This exceptional host presents the tightest 3D cavity reported for this spherical guest, occupying 77% of the internal volume and enabling strong \u03c0\u2013\u03c0 and CH\u22ef\u03c0 interactions, which result in exceptionally high binding affinities (\n                    <jats:italic>\n                      K\n                      <jats:sub>a<\/jats:sub>\n                    <\/jats:italic>\n                    \u00a0&gt;\u00a010\n                    <jats:sup>9<\/jats:sup>\n                    M\n                    <jats:sup>\u2212<\/jats:sup>\n                    <jats:sup>1<\/jats:sup>\n                    ). Unlike related\n                    <jats:italic>cage<\/jats:italic>\n                    and\n                    <jats:italic>basket<\/jats:italic>\n                    analogues, encapsulation in this perfectly fitted host is kinetically hindered, leading to guest release dynamics that are extremely slow above 400 K and essentially suppressed at room temperature.\n                  <\/jats:p>","DOI":"10.1002\/anie.7486858","type":"journal-article","created":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T03:38:13Z","timestamp":1789184293000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Mechanical\n                    <i>sp<\/i>\n                    <sup>2<\/sup>\n                    \u2010\n                    <i>Jail<\/i>\n                    for C\n                    <sub>60<\/sub>\n                    Fullerene"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-3659-5747","authenticated-orcid":false,"given":"A. Priscila","family":"Gia","sequence":"first","affiliation":[{"name":"Nanostructured Molecular Systems and Materials group Organic Chemistry Department Universidad Aut\u00f3noma de Madrid  Madrid Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3311-3717","authenticated-orcid":false,"given":"Fernando G.","family":"Guijarro","sequence":"additional","affiliation":[{"name":"Nanostructured Molecular Systems and Materials group Organic Chemistry Department Universidad Aut\u00f3noma de Madrid  Madrid Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-6377-0819","authenticated-orcid":false,"given":"Pau","family":"Armada","sequence":"additional","affiliation":[{"name":"Institute of Molecular Science Universitat De Val\u00e8ncia  Paterna Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0747-6266","authenticated-orcid":false,"given":"Daniel","family":"Aranda","sequence":"additional","affiliation":[{"name":"Institute of Molecular Science Universitat De Val\u00e8ncia  Paterna Spain"},{"name":"Andaluc\u00eda Tech Science Faculty Department of Physical Chemistry Universidad de M\u00e1laga  M\u00e1laga Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0256-0186","authenticated-orcid":false,"given":"Josefina","family":"Perles","sequence":"additional","affiliation":[{"name":"Single Crystal X\u2010ray Diffraction Laboratory SIdI Universidad Aut\u00f3noma de Madrid Madrid Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9544-8286","authenticated-orcid":false,"given":"Enrique","family":"Ort\u00ed","sequence":"additional","affiliation":[{"name":"Institute of Molecular Science Universitat De Val\u00e8ncia  Paterna Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0415-9946","authenticated-orcid":false,"given":"Juan","family":"Arag\u00f3","sequence":"additional","affiliation":[{"name":"Institute of Molecular Science Universitat De Val\u00e8ncia  Paterna Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2651-4566","authenticated-orcid":false,"given":"David","family":"Gonz\u00e1lez\u2010Rodr\u00edguez","sequence":"additional","affiliation":[{"name":"Nanostructured Molecular Systems and Materials group Organic Chemistry Department Universidad Aut\u00f3noma de Madrid  Madrid Spain"},{"name":"Institute for Advanced Research in Chemical Sciences (IAdChem) Universidad Aut\u00f3noma de Madrid  Madrid Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2275-1775","authenticated-orcid":false,"given":"Alberto","family":"de Juan","sequence":"additional","affiliation":[{"name":"Nanostructured Molecular Systems and Materials group Organic Chemistry Department Universidad Aut\u00f3noma de Madrid  Madrid Spain"},{"name":"Institute for Advanced Research in Chemical Sciences (IAdChem) Universidad Aut\u00f3noma de Madrid  Madrid 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