The tetradentate ligand MeN4 (N, N'-di-methyl-2,11-diaza[3,3](2,6)pyridinophane) was found to stabilize a series of cationic Pd complexes in both PdIII and PdIV oxidation states which allows for the unprecedented direct structural and reactivity comparison of the two oxidation states in an identical ligand environment. Moreover, the PdIII and/or PdIV oxidation states can be accessed by oxidation of the corresponding PdII precursors with mild oxidants (eg. O2 and H2O2) as several PdIII and PdIV intermediates were detected experimentally. These high-valent Pd intermediates can further lead to C-C bond and C-heteroatom bond formation.

Mononuclear Pd(III) and Pd(IV) complexes: Reactivity comparison and relevance to O2/H2O2 induced C-C and C-heteroatom bond formation

245th National Meeting (2013)

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