Acta Cryst. (2009). E65, o410  [ doi:10.1107/S1600536809002943 ]

2-{1-[2-((2-Ammonioethyl){2-[1-(5-chloro-2-hydroxyphenyl)ethylideneamino]ethyl}amino)ethyliminio]ethyl}-4-chlorophenolate trifluoroacetate

S. M. Lee, H. M. Ali, K. M. Lo and S. W. Ng

Abstract: In the title ion-pair, C₂₂H₂₉Cl₂N₄O₂⁺·C₂F₃O₂^-, ammonium-carboxylate N-HO hydrogen bonds link two cations and two anions about a centre of inversion to generate a hydrogen-bonded tetramer. In the cation, one of the imino N atoms is protonated and donates a hydrogen bond to the O atom of the adjacent chlorophenyl ring. The other imino N atom acts as a hydrogen-bond acceptor from a phenolate O atom.

Online 28 January 2009

Copyright © International Union of Crystallography
IUCr Webmaster