Three-coordinate copper platforms that support rapid Cu(II/I) electron transfer and metal-ligand multiple bonding

INOR 93

Neal P. Mankad, nealm@caltech.edu and Jonas C Peters, jpeters@caltech.edu. Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd. MC 127-72, 1200 E. California Blvd., Pasadena, CA 91125
Three-coordinate copper ions are important as biological electron transfer (ET) reagents, and yet synthetic three-coordinate copper systems that mediate reversible ET are rare and the factors that influence their ET rates have not been studied. Isolation of three-coordinate copper anilide complexes in the Cu(I) and Cu(II) oxidation states supported by bis(phosphino)borate ligands will be described, and measurements of the self-exchange ET rates in these systems will be discussed. In addition, the synthesis, spectroscopic characterization, and reactivity of terminal [bis(phosphino)borate]copper carbene and nitrene species, which are implicated as intermediates in copper-catalyzed group transfer reactions, will be presented.
 

Coordination Chemistry: Synthesis
1:30 PM-4:50 PM, Sunday, 10 September 2006 Moscone Center -- Room 302, Oral

Division of Inorganic Chemistry

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006