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1-CARBOXYMETHYL-3-HYDROXY-2-METHYL-4(1H)-PYRIDINONE (MONOCLINIC FORM-2)

Title1-CARBOXYMETHYL-3-HYDROXY-2-METHYL-4(1H)-PYRIDINONE (MONOCLINIC FORM-2)
Publication TypeJournal Article
Year of Publication1994
AuthorsOrvig, C, Rettig, SJ, Zhang, ZH
JournalActa Crystallographica Section C-Crystal Structure Communications
Volume50
Pagination1511-1514
Date PublishedSep
Type of ArticleArticle
ISBN Number0108-2701
Abstract

The structure of a second monoclinic polymorph of 1-carboxymethyl-3-hydroxy-2-methyl-4-pyridinone (3-hydroxy-2-methyl-4-oxopyridine-1-acetic acid, C8H9NO4) is reported. The molecule has a delocalized zwitterionic structure much like that reported for form 1 [Zhang, Rettig & Orvig (1992). Can. J. Chem. 70, 763-7701. The structure contains a legitimate intermolecular C-H ... 0 hydrogen bond [H ... 0 = 2.18 (2), C ... 0 = 3.155 (3) angstrom, C-H ... 0 = 165 (2)-degrees]. The two forms differ primarily in the details of the hydrogen bonding

URL<Go to ISI>://A1994PK71000055