4,4′-Oxybis{N-[(E)-quinolin-2-ylmethylidene]aniline}

Abstract

The title Schiff base compound, C32H22N4O, was prepared by a reaction of 4,4′-diamino­diphenyl ether and 2-quinoline­carboxaldehyde. The mol­ecule consists of two 4-{N-[(E)-quinolin-2-yl­methyl­idene]amino}­phenyl units linked by an oxygen bridge. The dihedral angles between two benzene rings and between the two quinoline ring systems are 53.81 (7) and 42.56 (4)°, respectively. Inter­molecular C—H⋯N hydrogen bonding is present in the crystal structure.

1-{[4-(4-{[(2-Oxidonaphthalen-1-yl)methylidene]azaniumyl}phenoxy)phenyl]iminiumylmethyl}naphthalen-2-olate

“…The bond distances shown in table 3 indicate that the C(1)-N(1) imine (C=N) bond length of 1.306 (4) Å agree with similar double bond usualy observed in related compounds (Girija et al, 2004, Djamel et al, 2011 but much shorter than single C-N 1.418 (4) Å of C(12)-N(1) (Gowda et al, 2007) and for the molecule (2) the bond lengths C=N C(58)-N(4) is 1.295 (4) Å and bond single C(55)-N(4) is 1.410 (4) Å.…”

“…For their application in water treatments, see: Izatt et al (1995); Kalcher et al (1995); Gilmartin & Hart (1995) and as corrosion inhibitors, see: Ahamad et al (2010); Negm et al (2010); Zhenlan et al, (2002). For crystallographic studies of related compounds, see: Girija et al (2004); Djamel et al (2011); Gowda et al (2007). For the synthesis, see: Issaadi et al (2005); Ghames et al (2006).…”