Journal
CARBON
Volume 124, Issue -, Pages 499-505Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2017.09.010
Keywords
Solvate fullerene; Polymerization; High pressure; Spectroscopy; Synchrotron XRD
Funding
- National Science Associated Funding (NSAF) [U1530402]
- Science Challenging Program [JCKY2016212A501]
- Postdoctoral Science Foundation [2015M572499]
- U.S. National Science Foundation [EAR-1555388]
- Division Of Earth Sciences
- Directorate For Geosciences [1555388] Funding Source: National Science Foundation
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The polymerization of fullerenes has been an interesting topic for almost three decades. A rich polymeric phase diagram of C-60 has been drawn under a variety of pressure-temperature conditions. However, only linear or perpendicular linkages of C-60 are found in the ordered phases. Here we used a unique bilayer structural solvate, C-60.1,1,2-trichloroethane (C-60.1TCAN),to generate a novel quasi-3D C-60 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 C(60)s 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 C-60, but also facilitate targeted design and synthesis of unique C-60 polymers. (C) 2017 Elsevier Ltd. All rights reserved.
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