Acta Cryst. (2006). E62, o1863-o1865  [ doi:10.1107/S160053680601227X ]

A dianionic 5-sulfonatosalicylate species in the proton-transfer compound bis(benzylaminium) 3-carboxylato-4-hydroxybenzenesulfonate

G. Smith, U. D. Wermuth and P. C. Healy

Abstract: The crystal structure of anhydrous bis(benzylaminium) 5-sulfonatosalicylate, 2C₇H₁₀N⁺·C₇H₄O₆S^2-, from the reaction of benzylamine with 5-sulfosalicylic acid, shows the presence of a dianionic 5-sulfonatosalicylate species, uncommon among proton-transfer compounds of this acid with organic Lewis bases. Hydrogen-bonding interactions between both aminium N⁺-H groups of the two cations and both the sulfonate and carboxylate O-atom acceptors of the anions give a layered two-dimensional network structure.

Online 13 April 2006

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