Research Article: 2-Cyano-1-methyl­pyridinium nitrate

Date Published: June 01, 2012

Publisher: International Union of Crystallography

Author(s): Lynn V. Koplitz, Joel T. Mague, Michael N. Kammer, Cameron A. McCormick, Heather E. Renfro, David J. Vumbaco.

http://doi.org/10.1107/S1600536812019460

Abstract

In the title compound, C7H7N2+·NO3−, all atoms except the methyl H atoms lie on a crystallographic mirror plane. The inter­layer distance, including that between aligned N atoms from alternating cations and anions in adjacent layers, is exceptionally short at 3.055 (1) Å. Two-dimensional C—H⋯O hydrogen-bonded networks link cations to anions, while C—H⋯N inter­actions link cations within each layer. Anion–π inter­actions with the cations assist in binding the layers together.

Partial Text

For the structure of 2-cyano­anilinium nitrate, see: Cui & Wen (2008 ▶). For the structures of other 2- and 3-cyano­anilinium salts, see: Zhang (2009 ▶); Wang (2009a ▶,b ▶); Wen (2008 ▶). For previous work on cyano-N-methyl­pyridinium salts, see: Koplitz et al. (2003 ▶); Mague et al. (2005 ▶). For a discussion of anion–π inter­actions, see: Frontera et al. (2011 ▶).

 

Source:

http://doi.org/10.1107/S1600536812019460

 

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