Compression of glycolide-h4 to 6GPa

Ian B. Hutchison, Craig L. Bull, William G. Marshall, Simon Parsons, Andrew J. Urquhart, Iain D.H. Oswald

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    This study details the structural characterization of glycolide-h4 as a function of pressure to 6GPa using neutron powder diffraction on the PEARL instrument at ISIS Neutron and Muon source. Glycolide-h4, rather than its deuterated isotopologue, was used in this study due to the difficulty of deuteration. The low background afforded by zirconia-toughened alumina anvils nevertheless enabled the collection of data suitable for structural analysis to be obtained to a pressure of 5GPa. Glycolide-h4 undergoes a reconstructive phase transition at 0.15GPa to a previously identified form (II), which is stable to 6GPa. 
    Original languageEnglish
    JournalActa Crystallographica Section B: Structural Science, Crystal Engineering and Materials
    Issue number6
    Pages (from-to)1151-1157
    Number of pages7
    Publication statusPublished - 2017


    • High pressure
    • Polymorphism
    • Phase transition
    • Neutron diffraction
    • Hydrogenated


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