Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 1 (January 2013)

organic compounds

Acta Cryst. (2013). E69, o142-o143    [ doi:10.1107/S1600536812051239 ]

Cinnarizinium fumarate

C. N. Kavitha, S. O. Yildirim, J. P. Jasinski, H. S. Yathirajan and R. J. Butcher

Abstract: In the title salt {systematic name: 4-diphenyl­methyl-1-[(E)-3-phenyl­prop-2-en-1-yl]piperazin-1-ium (2Z)-3-carb­oxy­prop-2-enoate}, C26H29N2+·C4H3O4-, the piperazine ring in the cation adopts a distorted chair conformation and contains a positively charged N atom with quaternary character. The dihedral angle between the mean planes of the phenyl rings of the diphenyl­methyl group is 74.2 (7)° and those between these rings and the phenyl ring of the 3-phenyl­prop-2-en-1-yl group are 12.7 (9) and 80.6 (8)°. In the crystal, N-H...O and O-H...O hydrogen bonds form chains along [001]. Weak C-H...O inter­actions connect parallel chains along [010], forming layers perpendicular to the a-axis direction.

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