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Compression of glycolide-h4 to 6 GPa


ABSTRACT: Fully hydrogenated glycolide (C4H4O4) has been studied as a function of pressure on the high-pressure beamline, PEARL, at ISIS Neutron and Muon Source. It undergoes a phase transition but remains monomeric to 6?GPa. This study details the structural characterization of glycolide-h4 as a function of pressure to 6?GPa 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 5?GPa. Glycolide-h4 undergoes a reconstructive phase transition at 0.15?GPa to a previously identified form (II), which is stable to 6?GPa.

SUBMITTER: Hutchison I 

PROVIDER: S-EPMC5744416 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature

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