Progress toward the synthesis of tugsten, rhenium, and molybedenum bisamido complexes using 1,4-di-tert-butyl-1,4-diazabuta-1,3-diene (DAD)

CHED 1232

Lori A. Watson, watsolo@earlham.edu, Gaya Hettiarachchi, and Janny Concha Urday Zaa. Department of Chemistry, Earlham College, 801 National Road West, Richmond, IN 47374
Unsaturated transition metal complexes are important in organometallic catalysis due to their coordinative and electronic unsaturation. Their ability to react without ligand dissociation promotes rapid reaction with a wide variety of substrates. Amido ligands can act to stabilize these unsaturated complexes as well as provide a ready method to modify the steric profile of the ligand by substitution of the organic group. The synthesis of tungsten, rhenium and molybdenum constrained geometry bisamido complexes with potential for alkene metathesis, C-X bond activation, and hydrogenation reactions is explored with the Li2-DAD ligand. The synthesis and characterization of WOCl(THF)-DAD is detailed and other analogous reactions are discussed.

 

Undergraduate Research Poster Session: Inorganic Chemistry
2:00 PM-4:00 PM, Monday, March 26, 2007 Hyatt Regency Chicago -- Riverside Center, Poster

Division of Chemical Education

The 233rd ACS National Meeting, Chicago, IL, March 25-29, 2007