Chemistry Journal of Moldova

SYNTHESIS, CHARACTERIZATION AND CRYSTAL STRUCTURE OF BIS-(2-HYDROXYBENZALDEHYDE)DIAMINOGUANIZONE

Author(s):

Diana Dragancea, Vladimir B. Arion, Sergiu Shova


Field: Inorganic and coordination chemistry
Type: Short communication
Issue: 2008 Volume 3, no.2
Pages: 119-121
Keywords:

Schiff base, guanidine, X-ray diffraction.


Full Text (PDF): Download

DOI:
dx.doi.org/10.19261/cjm.2008.03(2).13

Graphical Abstract:
 The new ligand, bis(2-hydroxybenzaldehyde)diaminoguanizone (1) has been synthesized and characterized by elemental analysis, IR and 1H NMR spectroscopies. The crystal structure of the compound was determined by X-ray diffraction. The ligand C15H15N5O2·C2H5OH crystallizes in the monoclinic space group P21/c with unit cell parameters a = 8.9102(3), b = 10.0357(3), c = 19.7618(6) Å, β = 98.385(2)°, Z = 4, V = 1748.21(9) Å3, R1 = 0.040. The amino form of the ligand adopts a planar conformation stabilized by two intramolecular hydrogen bonds of the type O–H···N, in which the H atoms of the central amino group are directed to the lone-pair regions of the azomethine nitrogen atoms.


Downloads: 24