title: 2-{1-[2-((2-Ammonio-ethyl){2-[1-(5-chloro-2-hydroxy-phen-yl)ethyl-idene-amino]eth-yl}amino)ethyl-iminio]eth-yl}-4-chloro-phenolate trifluoro-acetate.
abstract: In the title ion-pair, C(22)H(29)Cl(2)N(4)O(2) (+)·C(2)F(3)O(2) (-), ammonium-carboxyl-ate N-H⋯O 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 chloro-phenyl ring. The other imino N atom acts as a hydrogen-bond acceptor from a phenolate O atom.
authors.affiliation: Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: See Mun
authors.initials: SM
authors.lastname: Lee
authors.forename: Hapipah Mohd
authors.initials: HM
authors.lastname: Ali
authors.forename: Kong Mun
authors.initials: KM
authors.lastname: Lo
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng