Ontology highlight
ABSTRACT:
SUBMITTER: Findlater M
PROVIDER: S-EPMC2858392 | biostudies-literature | 2010 Apr
REPOSITORIES: biostudies-literature
Findlater Michael M Bernskoetter Wesley H WH Brookhart Maurice M
Journal of the American Chemical Society 20100401 13
Hydrogenation of the (PONOP)Ir(I)CH(3) complex [PONOP = 2,6-bis(di-tert-butylphosphinito)pyridine] yields the unexpected trans-dihydride species (PONOP)IrCH(3)(H)(2). Mechanistic investigations have revealed that this reaction proceeds via proton-catalyzed H(2) cleavage, a pathway that circumvents the intermediacy of the typically invoked cis-dihydride isomer. Protonation yields the cationic (PONOP)Ir(CH(3))(H)(+) complex, which is then trapped by H(2) to yield an eta(2)-H(2) complex. Deprotonat ...[more]