Synthesis, designing, characterization and anti-microbial studies of N, N'- Bis (2 hydroxyacetophenone) Ethylenediamine metal (II) complexes

Nkeruwem Udo Nyah *, Etiowo George Ukpong, Okon Effiong Okon and Ekemini Johnson Obosi 

Department of Science Technology, Akwa Ibom State Polytechnic, Ikot Osurua, Ikot Ekpene, Akwa Ibom State, Nigeria.
 
Research Article
Global Journal of Engineering and Technology Advances, 2021, 09(02), 057–064.
Article DOI: 10.30574/gjeta.2021.9.2.0149
Publication history: 
Received on 07 October 2021; revised on 18 November 2021; accepted on 20 November 2021
 
Abstract: 
Tetra dentate Schiff base N, N’-bis [2-hydroxyacetophenone] ethylendiamine (OAcPh-en) were formed by the 2:1 molar condensation of 2-hydroxyacetophenone with ethylenediamine. Their Ni(II), Cu(II), Co(II), Mn(II), Fe(II) and Zn(II) diaquo complexes (I) were synthesized. The neutral bidentate ligand derived from benzaldehyde and ethylenediamine or o-phenylenediamine in 1:1 molar ratio in alcoholic solution yield bis[benzylidene] ethylenediamine (Ben-en) or bis [benzylidene] o-phenylinediamine (Ben-opd) (II). Further reaction between (I) and (II) in alcohol yielded mixed ligand complexes. The characterization of these newly synthesized mixed-ligand complexes were done by elemental analysis, magnetic measurements, infrared spectra and uv-visible spectra, thermo gravimetric analysis, anti-microbial studies have also been under taken 
 
Keywords: 
Shiff Bases; Mixed ligand complexes; Antimicrobial Activity; Synthesis; Characterization
 
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