Synthesis and Crystal Structure of 4-Nitro-2- [（2-diethylaminoethylimino）methyl]phenol

1 INTRODUCTION Schiff base ligands have played an important role in the development of coordination chemistry as they readily form stable complexes with most metal ions[1～4]. These complexes are very interesting in many fields, such as catalysis and enzymatic reac- tions[5, 6], magnetism and molecular architectures[7～9]. The complexes derived from the similar tridentate Schiff base ligand 2-[(2-dimethylaminoethylimino)- methyl]phenol[10, 11] and its derivatives[12～14] have been widely …

Synthesis and Crystal Structure of 4-Nitro-2-[(2-diethylaminoethylimino)methyl]phenol

The title Schiff base compound C13H19N3O3 synthesized by the condensation ofequimolar 5-nitrosalicylaldehyde and N,N-diethylethane-1,2-diamine consists of two independentmolecules. The compound was characterized by elemental analysis, IR spectra and single-crystalX-ray diffraction. The crystal belongs to the orthorhombic system, space group Pbca with a =13.151 (3), b = 20.609(4), c = 20.991 (4) (A), Z = 16, V = 5689(2) (A)3, Dc = 1.239 g/cm3, Mr = 265.31,λ(MoKa) = 0.71073 (A), μ = 0.089 mm-1, F(000) = 2272, R = 0.0732 and wR = 0.1454. A total of5264 unique reflections were collected, of which 2023 with l ＞ 2σ(I) were observed. As expected,the molecule adopts trans configuration about the C=N double bond. The molecules in the crystal arelinked through intermolecular hydrogen bonds and π-π interactions, forming a 3-D network.