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Acta Cryst. (2013). E69, o1344  [ doi:10.1107/S1600536813020291 ]

Flunarizinium hydrogen maleate

C. N. Kavitha, J. P. Jasinski, S. M. Matar, H. S. Yathirajan and A. R. Ramesha

Abstract: In the cation of the title salt {systematic name: 4-[bis(4-fluorophenyl)methyl]-1-[(2E)-3-phenylprop-2-en-1-yl]piperazin-1-ium hydrogen maleate}, C26H27F2N2+·C4H3O4-, the protonated piperazine ring is in a chair conformation. The dihedral angle between the 4-fluorophenyl rings is 68.2 (2)°. An intramolecular O-H...O hydrogen bond occurs in the anion. In the crystal, N-H...O, C-H...O and C-H...F interactions are observed, which link the ions into [001] chains.

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