Neunfeldt, P.D. and Duval, A.R. and Cunico, W. and Wardell, S.M.S.V. and Tiekink, E.R.T. and Wardell, J.L. (2010) (E)-1-(2,4-Dinitrophenyl)-2-pentylidenehydrazine. Acta Crystallographica Section E: Structure Reports Online, 66 (2). O483-U3565. ISSN 1600-5368,

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The title compound, C(11)H(14)N(4)O(4), is essentially planar with an r.m.s. deviation for the 19 non-H atoms of 0.152 angstrom. The conformation about the C=N bond is E, and the molecule has a U-shape as the butyl group folds over towards the aromatic system. An intramolecular C-H center dot center dot center dot N interaction occurs. The crystal packing is dominated by N-H center dot center dot center dot O hydrogen bonding and C-H center dot center dot center dot O contacts, leading to twisted zigzag supra-molecular chains along the c direction. The crystal packing brings two nitro O atoms into an unusually close proximity of 2.686 (4) angstrom. While the nature of this interaction is not obvious, there are several precendents for such short nitro-nitro O center dot center dot center dot O contacts of less than 2.70 angstrom in the crystallographic literature.

Item Type: Article
Subjects: Q Science > QC Physics
Depositing User: MR Faizal II H
Date Deposited: 23 Dec 2015 01:08
Last Modified: 31 Jan 2019 05:07
URI: http://eprints.um.edu.my/id/eprint/15223

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