Stability constants of some bivalent transition and trivalent lanthanide metal chelates of novel benzoyl and salicoyl hydrazones derived from beta-diketones

ABSTRACT

The stability constants of some bivalent transition and trivalent lanthanide metal chelates of Noval benzoyl and salicoyl hydrazones derived form beta-diketone have been determined using potentiometric techniques in 50% v/v EtOH/H2O and at 0.1 ionic strength. The values of the stability constants have been correlated and discussed in relation to the basicity factor, 2nd ionization potential, electronegativity Xm and reciprocal of the ionic radius for transition and lanthanide elements