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International Union of Crystallography, Acta Crystallographica Section E: Structure Reports Online, 2(68), p. o453-o453, 2012

DOI: 10.1107/s1600536812001043

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A triclinic polymorph of (E)-2-(1-hy­droxy-3-phenyl­prop-2-en-1-yl­idene)-4,5-dimeth­oxy­cyclo­pent-4-ene-1,3-dione

Journal article published in 2012 by Masoumeh Hosseinzadeh, Mat Ropi Mukhtar, Mohammad Ali Khalilzadeh ORCID, Hamid Khaledi
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

The title compound, C(16)H(14)O(5), is a triclinic polymorph of a previously reported monoclinic structure [Hosseinzadeh et al. (2011 ▶). Acta Cryst. E67, o1544]. The mol-ecule is roughly planar, the r.m.s. deviation from the least-squares plane of all non-H atoms being 0.092 Å. In the crystal, adjacent mol-ecules are linked through C-H⋯O hydrogen bonds into an infinite two-dimensional network parallel to (011). The layers are further connected via C-H⋯π inter-actions, forming a three-dimensional structure. Intra-molecular O-H⋯O and C-H⋯O hydrogen bonds are also observed.