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6-Methyl-2-pyridone: an elusive structure finally solved

Lookup NU author(s): Gary Nichol, Emeritus Professor Bill CleggORCiD

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Abstract

The title compound, C6H7NO, crystallizes unsolvated from dry toluene after storage for several months at approximately 263 K. Synchrotron radiation was needed in order to carry out data collection because of the small size of the crystals obtained. There are four crystallographically independent molecules in the asymmetric unit. Packing diagrams show that the molecules are linked into infinite chains by hydrogen bonding; two of the four independent molecules link together to form a chain, while the other two molecules form chains involving only their own symmetry equivalents, giving a total of three crystallographically distinct chains in all. The chains are held together by weak - interactions. This structure provides conclusive proof that, in the absence of any other co-crystallized molecule or solvent, the compound exists in the solid state as the pyridone and not the pyridinol tautomer.

Publication metadata

Author(s): Nichol G, Clegg W

Publication type: Article

Publication status: Published

Journal: Acta Crystallographica C: Crystal Structure Communications

Year: 2005

Volume: 61

Issue: 6

Pages: 383-385

Date deposited: 09/10/2007

ISSN (print): 0108-2701

ISSN (electronic): 1600-5759

Publisher: Wiley-Blackwell Munksgaard

URL: http://dx.doi.org/10.1107/S0108270105012485

DOI: 10.1107/S0108270105012485

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