Study of complexation o f cesium( I) and cerium(III) metal ca tions with ۱,۱۳-bis(۸-quinolyl)-۱,۴,۷,۱۰,۱۳-penta oxatridecane in bi nary mix ed non-aq ueous solvents

Studies of complexation o f open-c hain ligand s in vari ous solvents, show that the thermodynamic a nd kineti c paramet ers for complexation process es and e ven the stiochio metry of crown ether complexe s are affected by the nature and composition of the solvent system [۱ ,۲]. Cond uctometry offers a simple and an inexpe nsive experimental arrangement for such inve stigations. The advantage of conducto metry is that the measurements can be carried out with h igh precision at very low concentration in solution system s [۳]. The goal of this investigation is to study the effect of the nature and composition of the mixed non-aqueous solvents on stability,selectivity and thermodynamic param eters of ۱,۱۳-bis(۸-quinolyl)-۱,۴,۷,۱۰,۱۳-pentaoxatridecane ligand with cesium(I) and cerium(III) cations in acetonitrile-methanol(AN-Me OH) and acetonitrile-ethylacetate (AN-EtOAc) using the conductometri c technique.

کلیدواژه ها:

Krypt ofix۵ ، Cs+ a nd Ce۳+ ، Mixed non-aqueous solv ents ، Conductometry