title: Selective transformation pathways between crystalline forms of an organic material established from powder X-ray diffraction analysis.
abstract: 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.
authors.affiliation: Department of Chemistry and Materials Science, Tokyo Institute of Technology, Ookayama 2-12-1, Meguro-ku, Tokyo, 152-8551, Japan.
authors.forename: Kotaro
authors.initials: K
authors.lastname: Fujii
authors.forename: Yasunari
authors.initials: Y
authors.lastname: Ashida
authors.forename: Hidehiro
authors.initials: H
authors.lastname: Uekusa
authors.forename: Fang
authors.initials: F
authors.lastname: Guo
authors.forename: Kenneth D M
authors.initials: KD
authors.lastname: Harris