Circular Dichroism Studies of Outer-Sphere Complexation in Coordination Compounds

摘要

In the present work a large number of symmetric and dissymmetric complexes of cobalt(III), chromium(III) and nickel(II) have been prepared and studied in the presence of a number of chiral environments with the object to establish whether or not hydrogen bonding is operative in outersphere complexation systems. The experimental observations show that hydrogen bonding theory is not tenable, instead electrostatic interaction theory which considers both the quality and quantity of charge on the complex and environment substance explains quite well the outersphere systems. Many parallel systems, which are not explained by hydrogen bonding, can easily be explained by electrostatic interaction theory of outersphere complexation.