3-(4-Hydroxy-3-methoxyphenyl)acrylic acid #8211;2,3,5,6-tetramethylpyrazine (2/1)

The asymmetric unit of the title compound, C8H12N2·2C10H10O4, contains a tetramethylpyrazine molecule, situated about an inversion center, and two substituted acrylic acid derivatives. The dihedral angle between the phenyl and pyrazine rings is 69.45 (9)°. In the crystal,...

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Bibliographic Details
Published inActa crystallographica. Section E, Structure reports online Vol. 67; no. 2; p. o424
Main Authors Zaiyou Tan, Erjia Zhu, Lin Luo, Zhuohui Lin, Ruisi Yan
Format Journal Article
LanguageEnglish
Published International Union of Crystallography 01.02.2011
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Summary:The asymmetric unit of the title compound, C8H12N2·2C10H10O4, contains a tetramethylpyrazine molecule, situated about an inversion center, and two substituted acrylic acid derivatives. The dihedral angle between the phenyl and pyrazine rings is 69.45 (9)°. In the crystal, intermolecular O—H...O, O—H...N hydrogen bonds and weak C—H...O interactions lead to the formation of a supramolecular network. The acrylic acid side chain is positionally disordered [occupancy ratio 0.852 (7):0.148 (7)].
ISSN:1600-5368
1600-5368
DOI:10.1107/S1600536811000961