Coordination compounds of carbonyl oxygen polychelate ligand; synthesis, physicochemical characterization and biological evaluation

The work covers the formation of bisaldehyde ligand 2,2'-[ethane-1,2diylbis(oxy)] dibenzaldehyde (M) and its metal complexes. synthesis M was achieved via two steps in which equivalents salicylaldehyde were reacted with KOH an ethanolic medium. Subsequently, resulting compound dissolved DMF one equivalent 1,2-dibromoethane added. Adding solution chloride a range ions to 1:1 (M:L) mole ratio resulted preparing new five monomeric entity isolated structure for prepared compounds confirmed using physicochemical methods (FT-IR, electronic spectroscopy, mass 1H, 13C-NMR spectra, elemental microanalysis, magnetic susceptibility molar conductance). characterization data indicated isolation six four-coordinate complexes general formula; [Cr(M)(Cl)2(H2O)2]Cl, [M(M)(Cl)2].H2O (where M= Fe(II), Co(II) Cu(II)) [Ni(M)]Cl2.H2O. anti-microbiological activity title (ligand complexes) tested against various bacterial fungal microorganisms. acquired revealed that became potentially more active than M. Keywords: Bisaldehyde ligand; Novel complexes; Structural study; Antimicrobial activity.