1. Department of Chemistry, Iowa State University, Ames, Iowa 50011, Department of Chemistry, University of California at Berkeley, Berkeley, California 94720, Institute for Theoretical Chemistry, University of Vienna, Waehringerstrasse 17, A-1090 Vienna, Austria, Department of Chemistry and Biochemistry, Texas Tech University, Memorial Circle & Boston, Lubbock, Texas 79409-1061, and Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nam. 2, CZ-16610...