What is it about?
we synthesized a new Schiff base ligand 3-((2-hydroxy-phenyl)imino)-2-(5-methoxy-3,3-dimethylindolin-2-ylidene)– propanal (LOH) from the reaction of 2-hydroxy aniline and 2-(5-methoxy-3,3-dimethylindolin-2-ylidene) malonaldehyde. All information obtained from FTIR, 1H,13C -NMR, UV-Vis, and C.H.N. evidence the formation of the ligand. The new ligand is utilized to synthesize a set of complexes by its reaction with some of the transition elements salts. The ligand LOH behaves as a tridentate ligand through coordination with the nitrogen atom of the azomethane group, nitrogen atoms of the indole ring, and oxygen of the OH group with Ni (II), Co(II), Cu(II), Zn(II) and Mn (II). The measurements of conductivity showed that all the prepared complexes were non-ionic except the Mn (II) complex was ionic with a (2:1) ratio. According to the results obtained from the infrared spectra, electronic spectra, magnetic moment, conductivity measurement, atomic absorption, and elemental analysis, the proposal structures from the coordination of LOH with metal ions were octahedral geometry
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Why is it important?
Schiff bases have played a vital role as chelating ligands in the major group and transition metal coordination chemistry, because of their constancy under a diversity of oxidative and reductive conditions, in addition to the reality that the imine ligands are considered as a borderline between soft and hard Lewis bases.
Perspectives
It was a pleasure working on preparing and writing this article, as the one of co-researcher is a master's degree student, and he was very cooperative. The ligand and its complexes can be used in a wide range of biological activities like anticancer, antihypertensive, antiviral, antitumor, anti-inflammatory, anti-depressant, antimicrobial, and antifungal
Areej ali jarullah
University of Diyala
Read the Original
This page is a summary of: Synthesis a new series of complexes from the ligand (LOH), January 2023, American Institute of Physics,
DOI: 10.1063/5.0105263.
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