KINETIC AND QUANTUM-CHEMICAL INVESTIGATION OF fac right arroww mer ISOMERIZATION OF COBALT(III) TRISAMINOETHOXIDE

The kinetics of the fac right arrow mer isomerization of cobalt(III) trisaminoethoxide were studied. The acceleration of the reaction with decrease of the pH of the solution is explained by the formation of a reactive monoprotonated form of the complex. The direction of isomerization agrees with quantum-chemical calculations performed at the B3LYP/6-31G** level. The rate constants and activation parameters of the process were obtained. The mechanism of isomerization is discussed.