Simple chains in methyl 3,5-dinitrobenzoate, isolated molecules in isopropyl 3,5-dinitrobenzoate and a three-dimensional framework containing double and sextuple helices in benzyl 3,5-dinitrobenzoate

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Abstract

Mol­ecules of methyl 3,5-dinitro­benzoate, C₈H₆N₂O₆, are linked into C(7) chains by a single nearly linear C-HO hydrogen bond, but there are no direction-specific inter­actions in the structure of isopropyl 3,5-dinitro­benzoate, C₁₀H₁₀N₂O₆. In benzyl 3,5-dinitro­benzoate, C₁₄H₁₀N₂O₆, the mol­ecules are linked by four independent C-HO hydrogen bonds into a complex three-dimensional framework structure, in which it is possible to identify simple substructures in the form of cyclic centrosymmetric dimers, double helices and sextuple helices.

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Keywords: None Document Type: Research Article DOI: http://dx.doi.org/10.1107/S0108270105038631 Publication date: 1 de Janeiro de 2006