Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 4 (April 2013)

organic compounds

Acta Cryst. (2013). E69, o581-o582    [ doi:10.1107/S1600536813007307 ]


D. Haffar, D. Daoud, T. Douadi, L. Bouzidi and S. Chafaa

Abstract: The title Schiff base compound, C34H24N2O3, was prepared by a condensation reaction of bifunctional aromatic diamine (4,4'-diamino­diphenyl ether) with hy­droxy­naphtaldehyde. The asymmetric unit contains two independent mol­ecules with similar conformations. The compound contains a central oxygen bridge and two functionalized [(E)-(phenyl­iminio)meth­yl]naphthalen-2-olate units. The dihedral angles between the benzene rings linking to the central O atom are 74.64 (19) and 69.85 (18)° in the two independent mol­ecules. Intra­molecular O-H...O hydrogen bonding occurs between the protonated imino N atoms and deprotonated hy­droxy O atoms in both mol­ecules. In the crystal, weak C-H...O hydrogen bonds are observed.

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