Structure and Reactivity of Early−Late Heterobimetallic Complexes

Bridged Dinuclear Tripodal Tris(amido)phosphane Complexes of Titanium and Zirconium as Diligating Building Blocks for Organometallic Polymers

“…The dilithium salt of the fulvalene dianion (Li 2 C 10 H 8 ) reacts with 9a,b to produce the dinuclear complexes trans-[P(CH 2 NAr R ) 3 Zr] 2 (µ-η eter of this phosphane ligand, [12,18] and allows for the observation of through-space spin-spin coupling by NMR spectroscopy when the central metal is spin-active, [19] and in paramagnetic complexes provides an electronic exchangecoupling pathway when a second paramagnetic metal center is bound to the phosphane donor. [19] With suitable building blocks, this interaction could be used to create heterometallic [20,21] 1D wires, or 2D or 3D networks that could have properties resulting from through-space exchangecoupling, or through-space electron-transfer. The target bis-(phosphane) building blocks for such an approach are shown in Scheme 1, and feature a pair of metal-bearing tripodal tris(amido)phosphane ligands, as well as a bridge between the metal centers labeled M. The addition of suitable late-transition-metal fragments capable of bonding to two phosphane moieties, labeled MЈL n in Scheme 1, should provide a facile route to transition-metal-containing oligomers and polymers.…”

Phenylvinylidene Clusters Containing ReFePt Metal Cores and Chelate Diphosphine Ligands at the Platinum Atom

“…Раство-рители (бензол, диэтиловый эфир, петролейный эфир, тетрагидрофуран, хлористый метилен) предварительно очищали от примесей, следов воды и кислорода путем перегонки над соот-ветствующими осушителями. Комплексы Cp(CO) 2 Re(μ-C=CHPh)Pt(P-P) (P-P = dppe (7); dppp (8)) и CpReFePt(µ 3 -C=CHPh)(CO) 6 (PPh 3 ) (3) синтезированы по методикам [20,23]. В экспери-ментах использованы 1,2-бис(дифенилфосфино)этан (Merck), 1,3-бис(дифенилфосфино)пропан (Acros).…”

Dimerization of ethynylaniline to a quinoline derivative using a ruthenium/gold heterobimetallic catalyst

“…Bimetallic catalysts have recently been reported for a wide variety of applications, [1][2][3][4][5][6][7][8] including carbon-carbon bond forming reactions, 9-11 methanol oxidation, 8 molecular switching, 12,13 and polymerization of ethylene. 14 In these examples, the different metal centers in heterobimetallic catalysts provide advantages including the formation of products different from those obtained using mononuclear complexes.…”