ArticleActa crystallographica. Section E, Structure reports online2014
Crystal structure of ethyl 2-({[(4Z)-3,5-dioxo-1-phenyl-pyrazolidin-4-yl-idene]meth-yl}amino)-acetate.
Article in Acta crystallographica. Section E, Structure reports online, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The title compound, C14H15N3O4, is nearly planar, the dihedral angle between the planes of the phenyl and pyrazolidine rings being 1.13 (7) Å, and that between the plane of the pyrazolidine ring and the mean plane of the side chain [C-N-C-C(=O)-O; r.m.s. deviation = 0.024 Å] being 2.52 (7)°. This is due in large part to the presence of the intra-molecular N-H⋯O and C-H⋯O hydrogen bonds. In the crystal, pairwise N-H⋯O hydrogen bonds form inversion dimers, which are further associated into layers, lying very close to plane (-120), via pairwise C-H⋯O hydrogen bonds. The layers are then weakly connected through C-H⋯O hydrogen bonds, forming a three-dimensional structure.
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