J. N. Low, Luís M. N. B. F. Santos, C. Lima
Jun 15, 2010
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0
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17
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Journal
European Journal of Chemistry
Abstract
The crystal structure of 1,3-diphenyl-propan-2-one oxime, C 15 H 15 NO, is described. The compound crystallises in the monoclinic space group C 2/ c . Centrosymmetrically related molecules are linked to form R 2 2 (6) dimers. An update, since 2003, of a systematic analysis of the hydrogen bonding patterns in oxime structures with and without competitive O-H...A type acceptors (an acceptor other than the nitrogen of the oxime) functional group is made, taking into account their moieties. The majority of these oximes form dimeric, R 2 2 (6), structures but R 3 3 (8) and R 4 4 (12) were also found. C3 chains which were classically claimed as the usual oxime H-bond pattern were rarely observed. They are mostly found in aldoxime structures.