Schiff Bases of Acetone Derivatives: Spectroscopic Properties and Physical Constants
作者:E. S. Ibrahim、S. A. Sallam、A. S. Orabi、B. A. El-Shetary、A. Lentz
DOI:10.1007/pl00010152
日期:1998.2
Schiff bases of acetylacetone, benzoylacetone, dibenzoylmethane, and thienoyltrifluoroacetone with ethanolamine and 2-aminophenol were synthesized and characterized by elemental analysis, infrared and H-1 NMR spectra. Dissociation constants of the synthesized ligands were determined in methanol-water and at an ionic strength of 0.1 M KNO3 at different temperatures; the associated thermodynamic parameters were calculated. Single crystals of one of the ligands were prepared; the X-ray diffraction pattern was analyzed. Thermal analyses of the investigated ligands were performed and correlated with the ligand structure.