We have been investigating multidentate ancillary ligands that incorporate amido and phosphine type donors with a variety of linkers. Previous efforts have included CH2SiMe2 and o-phenylene type linking units. In an effort to simply this, we have examined (i) phosphine imines, prepared by deprotonation of ketoimines and subsequent reaction of chlorophosphine reagents, and (ii) phosphinimine imines, prepared by reaction of the aforementioned phosphine imines with aryl azides. With respect to our efforts with phosphine imines, we have examined tridentate and bidentate versions aimed at exploring simpler approaches to cooperativity effects in homogeneous catalysis. In the phosphinimine project, we are trying to mimic diketiminates as ancillary ligands.  The coordination chemistry of these related ligand systems will be presented.

Design of new ancillary ligands with nitrogen and phosphorus donors

247th National Meeting (2014)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.