Acta Cryst. (2005). E61, o1836-o1838  [ doi:10.1107/S1600536805015199 ]

Diethylaminium 3,5-dinitrosalicylate at 130 K

G. Smith, U. D. Wermuth and J. M. White

Abstract: The low-temperature (130 K) crystal structure of the 1:1 proton-transfer compound of 3,5-dinitrosalicylic acid (DNSA) with diethylamine, viz. diethylaminium 3,5-dinitrosalicylate, C₄H₁₂N⁺·C₇H₃N₂O₇^-, shows the presence of conformationally extended diethylaminium cations in which both H atoms of the aminium centres participate in three-centre hydrogen-bonding associations [one R₁²(4) and the other R₁²(6)] with carboxyl, phenol and nitro O-atom acceptors of two separate DNSA anion species [NO = 2.813 (3)-3.320 (3) Å]. These result in 12-membered cyclic R₆⁴(12) associations linking the two sets of hetero-species into discrete centrosymmetric tetramers which have no significant peripheral extensions.

Online 21 May 2005

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