Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 4 (April 2013)


organic compounds



sj5304 scheme

Acta Cryst. (2013). E69, o604-o605    [ doi:10.1107/S1600536813007770 ]

(Z)-1-(2-Hydroxyethyl)-4-(2-methoxybenzylidene)-2-methyl-1H-imidazol-5(4H)-one

H. Wu, W. Wang, E. H. Walker Jr and F. R. Fronczek

Abstract: In the title compound, C14H16N2O3, an analog of the chromophore in green fluorescent protein, the methoxyphenyl substituent and the imidazole N adopt a Z conformation with respect to the C=C bond. Aside from the hydroxyethyl group, the molecule is approximately planar, with the five- and six-membered ring planes forming a dihedral angle of 9.3 (1)°. An intramolecular C-H...N contact occurs. In the crystal, O-H...N hydrogen bonds link the molecules, forming chains along the b-axis direction. C-H...O hydrogen bonds are also observed.


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