Selective transformation pathways between crystalline forms of an organic material established from powder X-ray diffraction analysis

The methanol solvate crystalline phase (M) of benzene-1,2,4,5-tetracarboxylic acid transforms selectively to a hydrate phase (H) or a non-solvate phase (N) depending on the presence of atmospheric water vapour; knowledge of the crystal structures of M and N, determined here using single-crystal and...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2010-01, Vol.46 (24), p.4264-4266
Main Authors: Fujii, Kotaro, Ashida, Yasunari, Uekusa, Hidehiro, Guo, Fang, Harris, Kenneth D M
Format: Article
Language:English
Subjects:
Crystal structure
Diffraction
Hydrates
Methyl alcohol
Phase transformations
Transformations
Vapour
X-rays
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Summary:The methanol solvate crystalline phase (M) of benzene-1,2,4,5-tetracarboxylic acid transforms selectively to a hydrate phase (H) or a non-solvate phase (N) depending on the presence of atmospheric water vapour; knowledge of the crystal structures of M and N, determined here using single-crystal and powder X-ray diffraction, respectively, yields insights into mechanistic aspects of the solid-state transformations.
ISSN:1359-7345
1364-548X
DOI:10.1039/c0cc00233j