Guanidinium 4-aminobenzoate
A. Matos Beja, J. A. Paixão, M. Ramos Silva and 1 more
Acta Crystallographica Section E · 2010
doi:10.1107/s160053681000396x (opens in a new tab)
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Abstract
In the title compound, CH6N3+·C7H6NO2−, the cation and anion lie on crystallographic mirror planes. The 4-aminobenzoate anion is almost in a planar conformation with a maximum deviation of 0.024 (2) Å for the N atom. The bond length in the deprotonated carboxyl group is intermediate between those of normal single and double Csp2=O bonds, indicating delocalization of the charge over both O atoms of the COO− group. In the crystal, N—H...O hydrogen bonds assemble the ions in layers propagating in the bc plane. This structure is very similar to that of guanidinium benzoate.
Abstract licence: CC BY
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