Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 2 (February 2013)


organic compounds



gk2534 scheme

Acta Cryst. (2013). E69, o260-o261    [ doi:10.1107/S1600536813000706 ]

4-[Bis(4-fluorophenyl)methyl]-1-[(2E)-3-phenylprop-2-en-1-yl]piperazin-1-ium 3-carboxypropanoate

C. N. Kavitha, H. S. Yathirajan, B. Narayana, T. Gerber, B. van Brecht and R. Betz

Abstract: In the title salt, C26H27F2N2+·C4H5O4-, the piperazine N atom bearing the vinylic substituent is protonated. The piperazine ring adopts a chair conformation. In ther crystal, the succinate monoanions are connected via short O-H...O hydrogen bonds between the carboxylic acid and carboxylate groups into undulating chains extending along [001] and the flunarizinium monocations are attached to these chains via N+-H...O- hydrogen bonds. C-H...O interactions connect these chains into a three-dimensional network. The shortest centroid-centroid distance of 3.7256 (10) Å was found between one of the fluorinated benzene rings and the non-fluorinated phenyl ring in the neighbouring molecule related by a glide plane.


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