Guanidinium 4-amino­benzoate

In the title compound, CH(6)N(3) (+)·C(7)H(6)NO(2) (−), 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 inter­mediat...

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Detalles Bibliográficos
Autores principales: Pereira Silva, P. S., Ramos Silva, M., Paixão, J. A., Matos Beja, A.
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2010
Materias:
Organic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2983752/
https://www.ncbi.nlm.nih.gov/pubmed/21580297
http://dx.doi.org/10.1107/S160053681000396X
Descripción
Sumario:In the title compound, CH(6)N(3) (+)·C(7)H(6)NO(2) (−), 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 Csp(2)=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.

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