Alexander D. Garnovskii is Head of the Department of Coordination Compounds, Institute of Physical and Organic Chemistry, Rostov State University, Rostov-on-Don, Russia. The author or coauthor of more than 700 professional publications, including eight books, he holds 30 patents and is a member of the Russian Academy of Natural Sciences. Professor Garnovskii received the Ph.D. (1961) and D.Hab. (1972) degrees from Rostov State University, Rostov-on-Don, Russia. Boris I. Kharisov is a Professor and Researcher at the Universidad Aut6noma de Nuevo Leon, Monterrey, Mexico. The author or coauthor of more than 50 professional publications, including two books, he holds two patents and is a member of the Mexican Chemical Society and the Mexican Academy of Sciences. Dr. Kharisov received the Ph.D. degree (1993) from Moscow State University, Russia.