Bis[4-(2-nitro­benzene­sulfonamido)­pyridinium] hexa­fluoro­silicate

Wang, A.-R.

doi:10.1107/S1600536808038191

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Acta Crystallographica Section E

Structure Reports Online

Volume 64, Part 12 (December 2008)

organic compounds

Acta Cryst. (2008). E64, o2405 [ doi:10.1107/S1600536808038191 ]

Bis[4-(2-nitrobenzenesulfonamido)pyridinium] hexafluorosilicate

A.-R. Wang

Abstract: In the title compound, 2C₁₁H₁₀N₃O₄S⁺·SiF₆^2-, the short C-N distance [1.386 (2) Å] is indicative of a slight conjugation of N with the [pi] electrons of the pyridinium ring, and with those of the sulfonyl group. The dihedral angle between the benzene and pyridinium rings is 77.48 (7)°. The crystal structure is stabilized by N-HF and C-HF hydrogen bonds. The Si atom of the anion lies on a special position.