A new series of Mn(II)-anilide complexes have been prepared and chara­cterized by elemental analysis, TGA and IR spectra. Electronic and EPR spectra indicate octahedral geometry around the MN(II) ion, where the solvent mole­cules (H20 or EtOH) occupy axial positions leading to the trans structure.The stability constants of the complexes in 50% dioxane are determi ned by potentionetric techniques. The values of the conditional stability constants depend on molecular structure. Deviation of the o-log K plots slopes from unity is attributed mainly to steric effect, 1T-electron back donation from the metal on or structural changes in the ligand. 


S M A EL WAFA ,A A SALEH ,M A EL BAHAIRY ,R M ISSA ,