摘要
Platinum complexes of the diimino/carbazolyl NNN pincer ligand have been prepared and characterized.Cyclometallation of the mesityl substituent was observed to occur unexpectedly easily in(NNN)PtOTf,which also catalyzed cyclometallation in(NNN)PtMe.Introduction Pincer complexes have gained in popularity in part because they offer a robust and well-defined framework for study of elementary reactions at transition metal centers.1 Our group,among many others,has been particularly attracted to pincer ligands based on the diarylamido central unit with ortho-positioned side donors(Chart 1).
基金
the US National Science Foundation(grant CHE-1062840 for the REU site at TAMU and grant CHE-1300299 to O.V.O.)
the Welch Foundation(grant A-1717 to O.V.O.)for support of this research.We are also grateful to Ms.Linda Redd for editorial assistance,to Allen Lunsford for assistance with cyclic voltammetry measurements,and to Prof.Andrei Vedernikov for insightful discussions.
