Open Access
Spectral and potentiometric Studies on Manganese (II) and Cobalt (II) Complexes With Schiff Base Derived from 2-thiophenecarboxylaldehyde and 2-Aminobenzoic Acid
Aliyu H N,Danlami A +1 more
- 09 Sep 2013
Vol. 18, Iss: 1
1
TL;DR: In this article, the melting point of the Schiff base and decomposition temperature of the complexes determined are high and the molar conductance of the complex compounds are nonelectrolytes.
read more
Abstract: Reaction of ethanolic solutions of 2-aminobenzoic acid and 2-thiophenecarboxyldehyde gave a Schiff base. The reaction of the ethanolic solutions of the Schiff base with metal (II) chlorides formed complex compounds. Their solubility, melting point/decomposition temperature, molar conductance, and IR were carried out. The melting point of the Schiff base and the decomposition temperature of the complexes determined are high. The Schiff base and its metal complexes are soluble in common organic solvent but insoluble in water. The molar conductance of the complexes determined suggested that the complex compounds are non-electrolytes. The empirical formula calculation of the complex compounds indicated the formula [ML 2 ].H 2 O. The infrared spectral data of the Schiff base and its metal complexes showed bands at 1600 cm -1 and 1610 cm -1 , which are assigned to v(C=N) stretching frequencies. The bands at 500 – 515 cm -1 and 490 – 495 cm -1 are attributable to v(M-O) and v(M-N) stretching vibrations. The spectral bands in the range 3092 – 3298 cm-1 are assigned to v(O-H) stretching frequencies. The dissociation constant of the Schiff base is 6.8, indicating a weak acid. The stability constants of the complexes are high
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
In vitro antimicrobial and antioxidant studies on N-(2- hydroxylbenzylidene) pyridine -2-amine and its M(II) complexes
TL;DR: A tridentate ligand N−(2−hydroxybenzylidene)pyridine-2−amine has been prepared by condensation of salicylaldehyde and 2−aminopyridine in absolute ethanol as discussed by the authors.
References
Metal-Based Antibacterial and Antifungal Agents: Synthesis, Characterization, and In Vitro Biological Evaluation of Co(II), Cu(II), Ni(II), and Zn(II) Complexes with Amino Acid-Derived Compounds
TL;DR: The results of these studies show the metal(II) complexes to be more antibacterial/antifungal against one or more species as compared to the uncomplexed ligands.
Synthesis, characterization and biological activity of some transition metals with Schiff base derived from 2-thiophene carboxaldehyde and aminobenzoic acid.
TL;DR: The activity data show that the metal complexes to be more potent/antibacterial than the parent Schiff base ligand against one or more bacterial species.
230
Studies on Some Schiff Base Complexes of CoII, NiII and CuII Derived from Salicylaldehyde and O-Nitrobenzaldehyde
TL;DR: In this paper, a condensation of 2-aminobenzothiazole with salicylaldehyde and o-nitrobenzaldehyde was used to obtain 1:1 and 1:2 complexes.
70
•Journal Article
Synthesis and characterization of Cu(II), Co(II), Ni(II) and Zn(II) Schiff base complexes from 1-amino-5-benzoyl-4-phenyl-1H-pyrimidine-2-one with salicylaldehyde
Mehmet Sönmez,Memet Şekerci +1 more
TL;DR: In this paper, a newheterocyclic Schiff base derived from 1-amino-5-benzoyl-4-phenyl-1H-pyrimidine-2-one with salicylaldehyde has been synthesized and characterized by elemental analyses, mass, electronic, IR and 1 H NMR spectra.
38
Synthesis of Some Transition Metal Complexes of a Novel Schiff Base Ligand Derived from 2,2'-bis(p-Methoxyphenylamine) and Salicylicaldehyde
TL;DR: In this paper, a Schiff base ligand derived from 2,2'-bis(p-methoxyphenylamine) and salicylical dehyde and its transition metal complexes with Cu (Ⅱ), Co (µ), and Mn () have been synthesized.