Karthikeyan S, Sethusankar K, Selvakumar R, Bakthadoss M
Department of Physics, RKM Vivekananda College (Autonomous), Chennai 600 004, India.
Department of Organic Chemistry, University of Madras, Maraimalai Campus, Chennai 600 025, India.
Acta Crystallogr Sect E Struct Rep Online. 2014 May 24;70(Pt 6):o709. doi: 10.1107/S1600536814010617. eCollection 2014 Jun 1.
In the title compound, C11H10O4, the methyl acrylate sub-stituent adopts an extended E conformation with all torsion angles close to 180°. The conformation of the keto group with respect to the olefinic double bond is typically S-trans. In the crystal, mol-ecules are linked via pairs of C-H⋯O hydrogen bonds, forming inversion dimers with an R 2 (2)(8) graph-set motif. The dimers are further linked via C-H⋯O hydrogen bonds, forming chains along [001], which enclose R 3 (2)(16) graph-set ring motifs. The keto group O atomaccepts two C-H⋯O interactions.
在标题化合物C₁₁H₁₀O₄中，丙烯酸甲酯取代基呈伸展的E构象，所有扭转角接近180°。酮基相对于烯烃双键的构象通常为S-反式。在晶体中，分子通过C-H⋯O氢键对相连，形成具有R₂²(8)图集 motif的反演二聚体。这些二聚体通过C-H⋯O氢键进一步相连，沿[001]形成链，其中包含R₃²(16)图集环 motif。酮基O原子接受两个C-H⋯O相互作用。
