Base complex pdf schiff

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Reynolds, Kingsborough, T. Swager, Shioya and T. Download references. You can also search for this author in PubMed Google Scholar. Correspondence to Mark J. Reprints and Permissions. Leung, A. Schiff Base Complexes in Macromolecules. J Inorg Organomet Polym 17, 57—89 Download citation. Published : 16 February Remember me on this computer. Enter the email address you signed up with and we'll email you a reset link.

Need an account? Click here to sign up. Download Free PDF. Ahmed Hammouda. A short summary of this paper. Download Download PDF. Translate PDF. The reaction of L- phenylalanine with salicylaldehyde leads to the isolation of amino acid Schiff base L. The ligand and its complexes were characterized by physical and spectroscopic measurements. These complexes are coordinated through the ONO donor set derived from the carboxyl, imino and phenoxy groups of the ligand.

Introduction The Salicylaldehyde and L-phenylalanine ligands are bidentate and form several complexes with transition and non-transition metal ions.

Salicylaldehyde compounds have variety of applications in chemistry and medicine. The complexes of Fe SalPnL- - ClO4, L- is 2,2-bipyridyl or, o-phen, H2SlPn or N,N--bis salicylidene propylene- diamine and [Fe SalPn 2L1], L1 is terephthalate or fumarate dianions have been prepared and studied by elemental analysis, infrared and electronic spectroscopies and magnetochemical measurements.

An octahedral arrangement of Fe III complex was suggested. The used physical techniques exhibit one chelation mode through the nitrogen atom of the azomethine and COOH group. The structure of their metal complexes was investigated by elemental analyses, IR, TGA, magnetic susceptibility and mass spectra. Experimental Chemicals and reagents All chemicals used in this work were laboratory pure including salicylaldehyde, L-phenylalanine, MnCl2.

H2O, Cd AcO 2. Preparation of Schiff base The amino acid Schiff base was prepared as follows: sodium hydroxide 10 mmol, 0. The mixture was stirred magnetically at room temperature. When the mixture becomes homogeneous, a 10 mmol, 1. After 2 hours, yellow crystals appeared. The crystals were filtered and washed with ethanol, recrystallized from hot Egypt. Preparation of complexes A methanolic solution 50 cm3 of salicylaldehyde 20 mmol, 2. After 2 minutes, the solids of the metal salts [10 mmol, MnCl2.

H2O 1. The thermogravimetric analysis was achieved using Schimadzu thermal analyzer Japan. The electronic spectra were measured by using a Perkin—Elmer lambda 4B spectrophotometer. Results and Discussion The reaction of salicylaldehyde with L-phenylalanine in methanol yields one amino acid Schiff base compound. The chemical equation concerning the formation of the compound represented as follows: Salicylaldehyde L-phenylalanine Schiff base Microanalysis l.

The empirical formulae of the complexes indicate the formation of a [M: L] ratio and they exist as Na salt.