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2-Hydroxy-2-trifluoromethyl-3,4-dihydro-2H-1-benzopyran-4-one

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Author(s): Abdullah M. Asiri | Hassan M. Faidallah | Khalid A. Alamry | Seik Weng Ng | Edward R. T. Tiekink

Journal: Acta Crystallographica Section E
ISSN 1600-5368

Volume: 68;
Issue: 7;
Start page: o2299;
Date: 2012;
Original page

ABSTRACT
The heterocyclic ring in the title compound, C10H7F3O3, has a half-boat conformation with the hydroxy-bearing C atom lying 0.595 (3) Å out of the plane of the five remaining atoms (r.m.s. deviation = 0.022 Å) in the direction of the hydroxy O atom. Linear supramolecular chains along the a axis, sustained by O—H...O hydrogen bonds between the hydroxy H and ketone O atoms, feature in the crystal packing. These chains are connected into a three-dimensional architecture by C—H...O and C—H...F contacts.
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