Mechanistic investigation of the oxidative addition reactions between different iridium (I) cyclooctadiene ([Ir(LL′)(cod)]) complexes and iodomethane

Mechanisms of reactions in solution

“…The kinetics of oxidative addition of iodomethane in nitromethane with, for example, 2.2.2-Z 4 -cycloocta-1,5-diene(2-pyridinethiolato-N-oxide-k-O,k-S)iridium(I) [Ir I (hpt)(cod)], have been investigated. 215 An associative mechanism involving a linear transition state is proposed on account of the large negative DS z in different solvents.…”

Electronic influence of β-diketonato-type ligands on the coordination of 1,5-cyclooctadiene to palladium(II) as defined by `Venus fly trap' geometric parameters

“…The known ability of coordinating to middle and late transition metals is well documented (Crabtree, 2005), generally forming halido complexes. However, cooordinating with other bidendate ligands have also been explored in our group (Leipoldt et al, 1980;Basson et al, 1989;Theron et al, 2005;Kotze et al, 2010;Warsink & Roodt, 2012).…”

Guanidinato and amidinato complexes of iridium(I)

“…Oxidative addition reactions using iridium and rhodium complexes are well-known in the literature because of the ability of these metal centers to be supported in the +1 and +3 oxidation states. [91][92][93] Reactions [ Yield: 2.9 mg (67%). The 1 H NMR and ESI(+)MS data were indistinguishable from those of the guanidine ligand precursor 58 and did not reveal any other products.…”