Pseudopolymorphism in hydroxybenzophenones: the dihydrate of 2,2′,4,4′-tetrahydroxybenzophenone

Pseudopolymorphism in hydroxybenzophenones: the dihydrate of 2,2′,4,4′-tetrahydroxybenzophenone

A dihydrate pseudopolymorph of bis(2,4‐dihydroxyphenyl)methanone, C13H10O5·2H2O, (I), was obtained during polymorphism screening of hydroxybenzophenone derivatives. This structure, in which the molecule sits on a twofold axis, was compared with the known anhydrous form of (I) [Schlemper (1982). Acta...

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Veröffentlicht in:Acta crystallographica. Section C, Crystal structure communications Crystal structure communications, 2012-04, Vol.68 (4), p.o156-o159
Hauptverfasser: Landre, I. M. R., Martins, F. T., Ellena, J. A., Dos Santos, M. H., Doriguetto, A. C.
Format: Artikel
Sprache:eng
Schlagworte:
Assembly
Benzophenones - chemistry
Crystal structure
Crystallography
Crystals
Derivatives
Hydrogen Bonding
Models, Molecular
Molecular Structure
Polymorphism
Screening
Water - chemistry
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Zusammenfassung:A dihydrate pseudopolymorph of bis(2,4‐dihydroxyphenyl)methanone, C13H10O5·2H2O, (I), was obtained during polymorphism screening of hydroxybenzophenone derivatives. This structure, in which the molecule sits on a twofold axis, was compared with the known anhydrous form of (I) [Schlemper (1982). Acta Cryst. B38, 554–559]. The role of water in the crystal assembly was established on the basis of the known monohydrate pseudopolymorph of 3,4‐dihydroxybenzophenone [Landre, Souza, Corrêa, Martins & Doriguetto (2010). Acta Cryst. C66, o463–o465].
ISSN:0108-2701
1600-5759
DOI:10.1107/S0108270112008748