Research Article: 4-[Bis(4-fluoro­phen­yl)meth­yl]piperazin-1-ium bis­(trichloro­acetate) 0.4-hydrate

Date Published: April 01, 2012

Publisher: International Union of Crystallography

Author(s): A. S. Dayananda, H. S. Yathirajan, Ulrich Flörke.


The title compound, C17H20F2N22+·2C2Cl3O2−·0.4H2O, has twofold protonated N atoms. The trichloro­acetate anions each show one disordered Cl atom with site occupation factors of 0.945 (7):0.055 (7) 0.945 (8):0.055 (8). In the crystal, N—H⋯O, O(water)—H⋯O and O(water)—H⋯F inter­actions connect the components into a three-dimensional network.

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For the biological activity of piperazines, see: Bogatcheva et al. (2006 ▶); Brockunier et al. (2004 ▶). For a review pharmacological and toxicological information for piperazine derivatives, see: Elliott, (2011 ▶). For related structures, see: Betz et al. (2011 ▶, 2011a ▶); Perpétuo & Janczak (2006 ▶). For graph-set analysis of hydrogen bonds, see: Bernstein et al. (1995 ▶); Etter et al. (1990 ▶). For puckering analysis, see: Cremer & Pople (1975 ▶).