The spectroscopic (ir, uv, nmr, and ms) and thermal properties of N-(4-methyl-2-pyridyl)benzaldimine, N-(6-methyl-2-pyridyl)benzaldimine, N-(4-methyl-2-pyridyl)salicylaldimine and N-(6-methyl-2-pyridyl)salicylaldimine have been studied. Their acidity constants are discussed in relationship to their stereochemistry. Finally, reaction of these compounds with metal salts has been studied in a qualitative manner.
[Journal Translation]
We have isolated the complexes of the Schiff bases N-(4-methyl-2-pyridyl)salicylaldimine and N-(6-methyl-2-pyridyl)salicylaldimine with Co(II), Ni(II), Cu(II), and UO2(II) in both aqueous alcoholic and absolute alcoholic solutions. We note different modes of action of these Schiff bases according to the medium used. However, in aqueous alcoholic solution the complexes mentioned have a remarkable capacity for reaction with the substances in solution. We propose two new gravimetric methods for Ni(II) and UO2(II).
[Journal Translation]