Unsymmetrical salen nickel (II) complex embracing phenol bridge: X-ray structure, redox investigation, computational calculations, antimicrobial and catalytic activities

Synthesis, Spectral Characterization, and Biological Activities of Some Metal Complexes Bearing an Unsymmetrical Salen-Type Ligand, (Z)-1-(((2-((E)-(2-Hydroxy-6-methoxybenzylidene)amino)phenyl)amino) methylene) Naphthalen-2(1H)-one

“…S5d): 258 (64,000), 374 (26,333), 470 (13,333); µ ef � 4.34 BM. S5f ): 225 (29,000), 272 (15,433), 301 (16,333), 350 (16,667), 433 (8,000); µ ef � 6.08 BM.…”

“…Antimicrobial Activity. In vitro antimicrobial activity of H 2 L and its metal complexes were evaluated using the disk difusion method [15] against a Gram-positive bacterium, Staphylococcus aureus (ATCC 13709), and a Gram-negative bacterium, Escherichia coli (ATCC 25922), which were previously grown in Mueller-Hinton Agar (MHA) medium. Te tested solutions of 1 mg/mL in DMSO were prepared for all the unsymmetrical salen-type Schif base ligands and their metal complexes.…”

“…As usual symmetrical Schif bases of 1,2-and 1,3-diamines, where the same type of simple aldehydes or ketones are condensed on both nitrogen atoms, and their complexes are extensively reported [9][10][11][12][13]. However, unsymmetrical Schif bases of diamines where two diferent carbonyl compounds are conducted on the nitrogen atoms have been paid attention recently [14][15][16]. Besides the electronic properties of unsymmetrical Schif bases using diferent electron donating and/or withdrawing groups at the two imine units [17][18][19], various ions of transition metals coordinated with these unsymmetrical salen ligands were interestingly needed to study as well.…”