Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 4 (April 2013)


organic compounds



sj5307 scheme

Acta Cryst. (2013). E69, o594-o595    [ doi:10.1107/S1600536813007678 ]

(E)-3-(4-Methoxyphenyl)-3-[3-(4-methoxyphenyl)-1H-pyrazol-1-yl]prop-2-enal

V. Susindran, S. Athimoolam, S. A. Bahadur, R. Manikannan and S. Muthusubramanian

Abstract: In the title molecule, C20H18N2O3, the pyrazole ring forms a dihedral angle of 2.2 (1)° with its methoxyphenyl substituent and a dihedral angle of 67.2 (1)° with the benzene substituent on the propenal unit. In the crystal, molecules are connected by weak C-H...O hydrogen bonds, forming R22(26) and R22(28) cyclic dimers that lie about crystallographic inversion centres. These dimers are further linked through C-H...O and C-H...N hydrogen bonds, forming C(8), C(9), C(10) and C(16) chain motifs. These primary motifs are further linked to form secondary C22(15) chains and R22(18) rings.


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