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Multiple glass transitions in vapor-deposited orientational glasses of the most fragile plastic crystal Freon 113
Grup de Nanomaterials i Microsistemes, Departament de Física, Universitat Autònoma de Barcelona, Bellaterra, 08193, Spain.ORCID iD: 0000-0003-1256-149x
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2019 (English)In: Physical Chemistry, Chemical Physics - PCCP, ISSN 1463-9076, E-ISSN 1463-9084, Vol. 21, no 20, p. 10436-10441Article in journal (Refereed) Published
Abstract [en]

We investigate by fast-scanning nanocalorimetry the formation of Freon 113 films from the vapor phase at deposition temperatures ranging from 50 to 120 K, that is, spanning above and below the transition temperature of the glassy crystal to the plastic crystal (T-gc = 72 K). Analysis of the heat capacity curves indicates that vapor deposition at T < T-gc of the highly fragile Freon 113 yields structural and orientational glasses in the as-deposited state depending on the temperature range of deposition. Interestingly, growing above T-gc produces plastic crystals with a conformational ratio C-1/C-s that changes with T-dep above and below 110-120 K, the temperature at which previous works have identified the arrest of the transformations between the C-1 and C-s conformers.

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2019. Vol. 21, no 20, p. 10436-10441
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Physical Chemistry
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URN: urn:nbn:se:umu:diva-178470DOI: 10.1039/c9cp00976kISI: 000476561000018PubMedID: 31066394Scopus ID: 2-s2.0-85066124382OAI: oai:DiVA.org:umu-178470DiVA, id: diva2:1516952
Available from: 2021-01-13 Created: 2021-01-13 Last updated: 2022-02-21Bibliographically approved

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Ràfols-Ribé, Joan

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