Characterization of Ni(II) and Cd(II) Metal Complexes using Schiff Base Ligand derived from 2-Thiophenecarboxyldehyde and 2 Aminothiophenol
Open Access
- 14 February 2021
- journal article
- Published by Earthline Publishers in Earthline Journal of Chemical Sciences
- Vol. 5 (2), 275-294
- https://doi.org/10.34198/ejcs.5221.275294
Abstract
Schiff base ligand derived from condensation of 2-aminothiophenol and 2‑thiophenecarboxyldehyde was synthesized and used for the preparation of Ni(II) and Cd(II) complexes. The synthesized ligand and complexes were analyzed by decomposition temperature, solubility, magnetic susceptibility, molar conductance and infrared spectra. The decomposition temperatures of the complexes are 212 and 221°C. Molar conductance values are 16.12 and 12.60 ohm-1cm2mol-1 respectively. New bands appeared in the IR spectra of the complexes in the range of 519 - 475 cm-1 and 462 - 448 cm-1 which indicate υ (M - N) and υ (M - S) vibrations respectively. Magnetic susceptibility measurement indicated that Ni (II) complex is paramagnetic whileCd(II) complex is diamagnetic. The solubility test revealed that all complexes and ligand are soluble in DMSO. The analytical data show the formation of 2:1 metal to ligand ratio for all complexes and suggested the formula [ML2].nH2O. The ligand and metal chelates have been studied for microbial activity using well diffusion method against selected bacteria and fungi. The results signify that Ni(II) and Cd(II) metal complexes inhibit more compared with Schiff base ligand against the same test organisms.Keywords
This publication has 9 references indexed in Scilit:
- Synthesis, Characterization and Antimicrobial Activity of Some Transition Complexes with New Schiff Base Derived from SaccharineInternational Research Journal of Pure and Applied Chemistry, 2016
- Green synthesis, antibacterial activity and computational study of pyrazoline and pyrimidine derivatives from 3-(3,4-dimethoxy-phenyl-1-(2,5-dimethyl-thiophen-3-yl)-propenoneEuropean Journal of Chemistry, 2014
- Synthesis and Characterization of New Amino Acid-Schiff Bases and Studies their Effects on the Activity of ACP, PAP and NPA Enzymes (In Vitro)E-Journal of Chemistry, 2012
- Synthesis and characterization of N-(I-Morphlinobenzyl) semicarbazide Manganese (II) and Iron (II) complexesBayero Journal of Pure and Applied Sciences, 2011
- Studies of mn (ii) and ni (ii) complexes with schiff base derived from 2-amino benzoic acid and salicylaldehydeBayero Journal of Pure and Applied Sciences, 2010
- Synthesis¸ Characterization and Biological Activity of a Schiff Base Derived from 3-Ethoxy Salicylaldehyde and 2-Amino Benzoic acid and its Transition Metal ComplexesJournal of Scientific Research, 2010
- Carbonylation of four-membered ruthenium and osmium metallacycles incorporating an orthometallated phenolic function: New acylruthenium and arylosmium complexesJournal of Organometallic Chemistry, 2005
- In vitro antiplasmodial activity of medicinal plants native to or naturalised in South AfricaJournal of Ethnopharmacology, 2004
- Brine Shrimp: A Convenient General Bioassay for Active Plant ConstituentsPlanta Medica, 1982