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Quasi 3D polymerization in C60 bilayers in a fullerene solvate
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2017 (English)In: Carbon, ISSN 0008-6223, E-ISSN 1873-3891, Vol. 124, p. 499-505Article in journal (Refereed) Published
Abstract [en]

The polymerization of fullerenes has been an interesting topic for almost three decades. A rich polymeric phase diagram of C60 has been drawn under a variety of pressure-temperature conditions. However, only linear or perpendicular linkages of C60 are found in the ordered phases. Here we used a unique bilayer structural solvate, C60∙1,1,2-trichloroethane (C60∙1TCAN), to generate a novel quasi-3D C60 polymer under high pressure and/or high temperature. Using Raman, IR spectroscopy and X-ray diffraction, we observe that the solvent molecules play a crucial role in confining the [2+2] cycloaddition bonds of C60s forming in the upper and lower layers alternately. The relatively long distance between the two bilayers restricts the covalent linkage extended in a single individual bilayer. Our studies not only enrich the phase diagram of polymeric C60, but also facilitate targeted design and synthesis of unique C60 polymers.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 124, p. 499-505
Keyword [en]
Fullerenes, C60, high pressure, high temperature, polymerization, 3D polymer, intermolecular bonds, Raman scattering, Raman spectroscopy, infra-red spectroscopy, IR spectroscopy, X-ray diffraction
National Category
Condensed Matter Physics
Research subject
Physics
Identifiers
URN: urn:nbn:se:umu:diva-141429DOI: 10.1016/j.carbon.2017.09.010ISI: 000412118200054OAI: oai:DiVA.org:umu-141429DiVA, id: diva2:1154599
Available from: 2017-11-03 Created: 2017-11-03 Last updated: 2018-06-09Bibliographically approved

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The full text will be freely available from 2019-11-04 09:09
Available from 2019-11-04 09:09

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Sundqvist, Bertil

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