Tuesday, May 20, 2008 - 9:40 AM
Library Building, Rm LB-6 (Queensborough Community College)
368

Tightening the Belt

Colin Nuckolls, Columbia University, New York, NY

Department of Chemistry and The Nanoscience Center

This presentation details metathesis reactions on strained [8]-annulenes. One annulene, where one of its double bonds is kinked into a trans-configuration, is found to wind into helical conformation and is spring-loaded with ~18kcal/mol strain energy to act as an active monomer for ROMP. The polymerization produces a living phenylene vinylene with all ortho-linkages. The polymer has equal number of cis and trans double bonds.