2026-04-09T10:46:11Z https://www.eurjchem.com/index.php/eurjchem/oai

oai:ojs.www.eurjchem.com:article/1025 2015-08-29T04:44:18Z eurjchem:ART driver

Physicochemical studies and biological activity of mixed ligand complexes involving bivalent transition metals with a novel Schiff base and glycine as a representative amino acid Karim, Abeer Taha Abedel El-Sherif, Ahmed Abdou Glycine Schiff base Amino acid Electronic spectra Antibacterial activity Mixed-ligand complexes The mixed-ligand complexes of Co(II), Ni(II), Mn(II) and Zn(II) with 2-aminomethyl thiophenyl-4-bromosalicylaldehyde Schiff base (ATS) and glycine as a representative example of amino acids have been achieved. These complexes namely [Ni(ATS)(Gly)] (1), [Co(ATS)(Gly)].H2O (2) [Mn(ATS)(Gly)].2H2O (3), and [Zn(ATS)(Gly)] (4) were characterized by elemental, molar conductance, infrared, magnetic moment, and electronic spectra. ATS behaves as mononegatively charged bidentate ligand with coordination through azomethine nitrogen and phenolate oxygen groups while glycine acts as monobasic bidentate ligand is coordinated via amino and ionized carboxylate group after deprotonation. The low molar conductance values suggest the non-electrolytic nature of these complexes. The magnetic and spectral data indicates a square planar geometry for Ni(II) complex, tetrahedral geometry for Zn(II) and octahedral geometry for both Mn(II) and Co(II) complexes. The isolated chelates have been screened for their antimicrobial activity. Atlanta Publishing House LLC 2014-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://www.eurjchem.com/index.php/eurjchem/article/view/1025 10.5155/eurjchem.5.2.328-333.1025 European Journal of Chemistry; Vol. 5 No. 2 (2014): June 2014; 328-333 2153-2257 2153-2249 eng https://www.eurjchem.com/index.php/eurjchem/article/view/1025/pdf_1025