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International Union of Crystallography, Acta Crystallographica Section E: Structure Reports Online, 4(69), p. o594-o595, 2013

DOI: 10.1107/s1600536813007678

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

Journal article published in 2013 by V. Susindran, S. Athimoolam, S. Asath Bahadur, S. Asath Bahadur, R. Manikannan, S. Muthusubramanian
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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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 R 2 2(26) and R 2 2(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 C 2 2(15) chains and R 2 2(18) rings.