Crystal structure of (3E)-3-[(4-nitrophenoxy)methyl]-4-phenylbut-3-en-2-one

Autor: Julio Zukerman-Schpector, Stella H. Maganhi, Paulo J. S. Moran, Bruno R. S. de Paula, Paulo R. Nucci Jr, Edward R. T. Tiekink
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Acta Crystallographica Section E, Vol 70, Iss 9, Pp o1020-o1021 (2014)
Druh dokumentu: article
ISSN: 1600-5368
16005368
DOI: 10.1107/S1600536814018327
Popis: In the title compound, C17H15NO4, the conformation about the C=C double bond [1.348 (2) Å] is E with the ketone group almost co-planar [C—C—C—C torsion angle = 7.2 (2)°] but the phenyl group twisted away [C—C—C—C = 160.93 (17)°]. The terminal aromatic rings are almost perpendicular to each other [dihedral angle = 81.61 (9)°] giving the molecule an overall U-shape. The crystal packing feature benzene-C—H...O(ketone) contacts that lead to supramolecular helical chains along the b axis. These are connected by π–π interactions between benzene and phenyl rings [inter-centroid distance = 3.6648 (14) Å], resulting in the formation of a supramolecular layer in the bc plane.
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