Heterobimetallic complexes of palladium and platinum containing a redox-active W[SNS]2metalloligand.
Complexes of the general formula W[SNS]2M(dppe) (M = Pd, Pt; [SNS]H3= bis(2-mercapto-p-tolyl)amine; dppe = 1,2-bis(diphenylphosphino)ethane) were prepared by combining the corresponding (dppe)MCl2synthon with W[SNS]2under reducing conditions. X-ray diffraction studies revealed the formation of a heterobimetallic complex supported by a single thiolate bridging ligand and a short metal-metal bond between the tungsten and palladium or platinum. Electrochemical and computational results show that the frontier orbitals lie predominantly on the W[SNS]2fragment suggesting that it behaves as a redox-active metalloligand in these complexes.
Department of Chemistry, University of California, Irvine, California 92617, USA. aheyduk@uci.edu.
Kyle E
KE
Rosenkoetter
Joseph W
JW
Ziller
Alan F
AF
Heyduk