C. Kavitha, S. Ö. Yıldırım, J. Jasinski
Dec 22, 2012
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Journal
Acta Crystallographica Section E: Structure Reports Online
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.