Mixed complex compounds of palmitate, oleate calcium with acetamide, nicotinamide and thiocarbamide

Abstract

The mixed coordination compounds of palmitate and calcium oleate were synthesized. The
composition, individuality, thermal behavior, methods of coordinating the palmitate and oleate fragments,
acetamide, nicotinamide and thiocarbamide molecules have been established. Comparison of the diffraction
patterns of calcium palmitate and oleate, free ligand molecules and synthesized compounds showed the
mismatch of the diffractograms, and this proves that the synthesized complexes have an individual crystal
lattice different from the starting materials. The method of coordination of amide molecules, the
environment of the central ion, is proved by IR spectroscopy. Acetamide molecules are coordinated with the
central atom through an oxygen atom, thiocarbamide and nicotinamide molecules are coordinated through
sulfur and nitrogen atoms, respectively, palmitate and oleate fragments coordinate bidentantly.