High-pressure structural studies of energetic compounds

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Oswald, Iain D. H. and Millar, David I. A. and Davidson, Alistair J. and Francis, Duncan J. and Marshall, William G. and Pulham, Colin R. and Cumming, Adam and Lennie, Alistair R. and Warren, John E. (2010) High-pressure structural studies of energetic compounds. High Pressure Research, 30 (2). pp. 280-291. ISSN 0895-7959 (https://doi.org/10.1080/08957951003757903)

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Abstract

The phase diagram of the energetic material hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) has been explored using X-ray and neutron diffraction from ambient pressure to 8GPa. Two phases of RDX have been structurally characterized. The high-pressure -polymorph exists above 4GPa while the metastable -polymorph has been isolated from the high boiling point solvent nitrobenzene. Interestingly, neutron diffraction measurements at high pressures and high temperatures show that the -polymorph isolated under ambient conditions is not the same polymorph as can be accessed at high pressures and temperatures.

ORCID iDs

Oswald, Iain D. H. ORCID logoORCID: https://orcid.org/0000-0003-4339-9392, Millar, David I. A., Davidson, Alistair J., Francis, Duncan J., Marshall, William G., Pulham, Colin R., Cumming, Adam, Lennie, Alistair R. and Warren, John E.;
CORE (COnnecting REpositories)