Abstract The synthesis and characterization of a cyclometalated ruthenium(II) complex [RuCl(PSiPCy)] containing monoanionic, tridentate coordinating PSiP-pincer ligand [κ3-(2-Cy2PC6H4)2SiMe]− ([PSiPCy]) are reported. Complex 3 is one of the few examples of halogenated ruthenium(II) complexes supported by the pincer-like bis(phosphino)silyl ligand. The structure of complex 3 was unambiguously determined
and cobalt–dinitrogen complexesbearing PSiP‐type pincerligands are newly designed and prepared, on the basis of our previous proposal that iron– and cobalt–dinitrogen complexesbearing trimethylsilyl ligands are key reactive intermediates in the catalytic formation of silylamine from nitrogen gas under ambient reaction conditions. These iron– and cobalt–dinitrogen complexes are found to work as effective
Synthesis of Bis(phosphino)silyl Pincer-Supported Iron Hydrides for the Catalytic Hydrogenation of Alkenes
作者:Luke J. Murphy、Michael J. Ferguson、Robert McDonald、Michael D. Lumsden、Laura Turculet
DOI:10.1021/acs.organomet.8b00807
日期:2018.12.24
characterization of Fe pincer complexes supported by a bis(phosphino)silyl (PSiP) ligand are described. While four-coordinate species of the type (PSiP)FeX (X = halide) proved challenging to access, examples of five-coordinate (PSiP)Fe(II) and (PSiP)Fe(I) species were prepared and crystallographically characterized. In studying the reactivity of such (PSiP)Fe precursors, a variety of iron hydride species were
Room temperature benzene C–H activation by a new [PSiP]Ir pincer complex
作者:Darren F. MacLean、Robert McDonald、Michael J. Ferguson、Andrew J. Caddell、Laura Turculet
DOI:10.1039/b811811f
日期:——
The synthesis and reactivity of coordinatively unsaturated Rh and Ir complexes supported by the new bis(phosphino)silyl pincer ligand [κ3-(2-Cy2PC6H4)2SiMe]â ([Cy-PSiP]â) are reported, including the first example of facile, room temperature intermolecular arene CâH bond activation mediated by a silyl pincer complex.
Activation of Molecular Hydrogen and Oxygen by PSiP Complexes of Cobalt
作者:Luke J. Murphy、Adam J. Ruddy、Robert McDonald、Michael J. Ferguson、Laura Turculet
DOI:10.1002/ejic.201800915
日期:2018.11
were generally unsuccessful, with the sole exception of H2, which reacted to afford the dihydride complex (Cy‐PSiP)Co(PMe3)(H)2. The dihydride complex undergoes Co‐H site exchange in solution and readily eliminates H2. The CoI precursor (Cy‐PSiP)Co(PMe3)N2 is a competent precatalyst for the hydrogenation of terminal alkenes. Exposure of (Cy‐PSiP)CoI to O2 gas under anhydrous conditions led to rapid ligand