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Temperature-dependent X-ray diffraction measurements reveal smooth, continuous and anisotropic thermal expansion without any indication of phase instability or structural phase transition. The anisotropic contraction along the\n                    <jats:italic>a<\/jats:italic>\n                    and\n                    <jats:italic>b<\/jats:italic>\n                    axes leads to progressive shortening of the intermolecular distances and a concomitant reorganization of the short intermolecular contacts, consistent with SAPT2\/jun-cc-pVDZ interaction energies calculated for dimers extracted from the crystal structures. Notably, theoretical conformational searches failed to reproduce the solid-state geometry. Biological assays indicate that Bu(OTf)\n                    <jats:sub>2<\/jats:sub>\n                    does not exhibit cytotoxic properties toward either leukemia cells or healthy cells. Gravimetric measurements further indicate that Bu(OTf)\n                    <jats:sub>2<\/jats:sub>\n                    is poorly soluble in water.\n                  <\/jats:p>","DOI":"10.1107\/s2053229626004250","type":"journal-article","created":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T10:45:02Z","timestamp":1777459502000},"page":"285-293","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":0,"title":["Study of a new fluorinated compound: variable-temperature crystallography, thermal expansion, theoretical calculations and biological assays"],"prefix":"10.1107","volume":"82","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8734-0953","authenticated-orcid":true,"given":"Marta","family":"Hoelm","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7654-3162","authenticated-orcid":true,"given":"Bart\u0142omiej","family":"Kost","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05e4zna08","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Przemys\u0142aw","family":"Nowak","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05e4zna08","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3412-0177","authenticated-orcid":true,"given":"Marta K.","family":"Dudek","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05e4zna08","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0263-7120","authenticated-orcid":true,"given":"Zdzis\u0142aw","family":"Kinart","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3123-8949","authenticated-orcid":true,"given":"Roza","family":"Pawlowska","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05e4zna08","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-4892-3925","authenticated-orcid":true,"given":"Karolina","family":"Kowalska","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05e4zna08","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"329","published-online":{"date-parts":[[2026,5,5]]},"reference":[{"key":"jx3105_bb1","doi-asserted-by":"crossref","first-page":"380","DOI":"10.1107\/S0108768110012048","volume":"66","author":"Allen","year":"2010","journal-title":"Acta Cryst. 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