1-[((E)-{2-[(2-Nitro­benz­yl)(2-{[(E)-(2-oxidonaphthalen-1-yl)methyl­idene]aza­nium­yl}eth­yl)amino]­eth­yl}aza­niumyl­idene)meth­yl]naphthalen-2-olate monohydrate

The title Schiff base compound, C33H30N4O4·H2O, adopts an E configuration with respect to each C=N double bond. In the mol­ecule, there are naphthoxide anions and the protonated imino N atoms. Intra­molecular N—H⋯O hydrogen bonds lead to the formation of approximately planar (maximum deviation 0.029 Å for H atom) six-membered rings.. In the crystal, mol­ecules are linked by O—H⋯O and N—H⋯O hydrogen bonds as well as C—H⋯O contacts, leading to the formation of a three-dimensional network

Methyl 2-{2-[(E)-(2-hy­droxy-3-meth­oxy­benzyl­idene)amino]­ethyl­amino}­cyclo­pentene-1-carbodithio­ate

In the title Schiff base compound, C17H22N2O2S2, which adopts an E configuration with respect to the imine C=N double bond, the C=N and N—C bond distances are 1.2789 (16) and 1.4546 (16) Å, respectively. In the mol­ecule there are intra­molecular O—H⋯N and N—H⋯S hydrogen bonds, and the CH=N—C substituent is almost coplanar with the benzene ring [C—N—C—C torsion angle = −178.80 (11)°]. The crystal packing is stabilized by inter­molecular C—H⋯O and C—H⋯π inter­actions involving the aromatic ring

[(Z)-1-({3-[(3-Amino­prop­yl)(2-nitro­benz­yl)amino]­prop­yl}imino­meth­yl)naphthalen-2-olato]copper(II) perchlorate

In the title compound, [Cu(C24H27N4O3)]ClO4, the CuII atom has a distorted square-planar coordination geometry and is surrounded by an N3O donor set composed of a secondary amine N, a primary amine H, an imino N and a naphthalen-2-olate O atom. An intra­molecular N—H⋯O hydrogen bond occurs. In the crystal, mol­ecules are held together by inter­molecular N—H⋯O hydrogen bonds, leading to the formation of a three-dimensional network