Heterobimetal complexes

Synthesis Characterisation and Catalytic Activity of Heterobimetal Complexes... 

The synthesis of a number of heterobimetal complexes of the type [(RhRuCl2Cp)( u-CO)2(jU-f/ -L-L)](R/i-RM) (L-L = dppm, [dppm = bis-(diphenylphosphino)methane] Ph2PC(=CH2)-PPh2, Ph2PNHPPh2 or dppp [dppp = bis(diphenylphosphino)propane] has been carried out. These complexes are readily prepared by treatment of the chelating phosphine complexes... 

Figure 1 Synthesis of ruthenium-rhodium heterobimetal complexes...

The structures of the fulvene complex Ti (n -CgH CPh2 >2 its CO adduct are described.The heterobimetal complex Zr[Ru(CO)2Cp]2 P2 equilibrate with (7). Complex (7) reacts... 

Hydrostannation of (l-alkynyl)carbene chromium complexes involves addition to the M = C bond as well as to the C=C bond and is strongly influenced by the substituent at the alkynyl moiety. By the bulky trimethyl-silyl group of compound lg, a 1,1-addition to the carbene carbon atom is promoted with formation of a densely functionalized 1,3-heterobimetal lie propargyl reagent 93 containing both a stannyl and a silyl group. A 3,1-addition is observed with phenyl derivative la and also the vinyl compound lo, which leads to production of an allene 94 and 95, respectively (Scheme 31).111... 

Beck and co-workers (84,8.5) utilized the anionic carbonylmetallates [M(C0)5] (M = Mn, Re) and [WCp(CO),] in nucleophilic addition reactions with cationic hexadienyl, cyclohexadienyl, cycloheptadienyl, and cyclooctadienyl complexes of iron and ruthenium to give heterobimetal lie complexes with rj iV-hydrocarbon bridges. The reaction of [Fe(i7 -... 

Complex Na3La[(S)-BINOL]3 6THF H2O (2) seems to accommodate a unique metal/ligand constellation which makes this complex the first heterobimetal-lic, multifunctional, asymmetric catalyst. Michael adducts in enantiomeric excesses as high as 92% were obtained in high yield even at room temperature (eq. (11)) [119],... 

Metal-metal bonded early-late heterobimetal-lic complexes and the issue of metal-metal bonding have been discussed specifically in ... 

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