Abstract
In the title molecular salt, C12H12N2 2+·2C7H5O5S−, the complete dication is generated by crystallographic inversion symmetry. In the anion, the sulfonic acid group is deprotonated and the dihedral angle between the planes of the carboxylic acid group and the benzene ring is 12.41 (11)°. In the crystal, the anions are linked into inversion dimers by pairs of O—H⋯O hydrogen bonds, which generate R 2 2(16) loops. The dications link the anion dimers into [10-2] chains via N—H⋯O hydrogen bonds.
Highlights
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) Tmin = 0.888, Tmax = 0.951 3834 measured reflections 2182 independent reflections 1899 reflections with I > 2(I) Rint = 0.025
H atoms treated by a mixture of independent and constrained refinement Ámax = 0.24 e A À3 Ámin = À0.42 e A À3
In the title molecular salt, C12H12N22+Á2C7H5O5SÀ, the complete dication is generated by crystallographic inversion symmetry
Summary
= 0.28 mmÀ1 T = 170 K 0.43 Â 0.29 Â 0.18 mm Oxford Diffraction Xcalibur (Atlas, Gemini Ultra CCD) diffractometer Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) Tmin = 0.888, Tmax = 0.951 3834 measured reflections 2182 independent reflections 1899 reflections with I > 2(I) Rint = 0.025
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