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Issue 9, 2019
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The PO13 crystal structure of ROY

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A novel polymorph of ROY was found by thermal methods. The crystal structure was solved by matching calculated powder X-ray diffraction patterns from a previously published crystal structure prediction to the experimental data. The structure was further refined by the Rietveld method. The new polymorph is pumpkin-orange in color and was therefore designated as PO13. At room temperature PO13 is less stable than form Y. After 5 years, a sample of 99% pure form PO13 converted to a mixture of 45% PO13/55% form Y.

Graphical abstract: The PO13 crystal structure of ROY

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The article was received on 11 Nov 2018, accepted on 20 Dec 2018 and first published on 21 Dec 2018

Article type: Paper
DOI: 10.1039/C8CE01930D
Citation: CrystEngComm, 2019,21, 1363-1368

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    The PO13 crystal structure of ROY

    K. S. Gushurst, J. Nyman and S. X. M. Boerrigter, CrystEngComm, 2019, 21, 1363
    DOI: 10.1039/C8CE01930D

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