CpFe+

Fig. 3. X-ray structure of the cyclic bissilylene complex 15 CpFe(CO)—SiMe2 OMe—SiMeOMe [40]...

The first silyl-metal complex was synthesized in 1956 with the compound CpFe(CO)2SiMe3 [93, 94]. Since then, methods for the formation of M-Si bonds have been investigated systematically and developed to an effective set of tools. Numerous articles covering this subject give evidence for the continuous development of this area [64, 95],... 

A photoinduced synthesis of the silylene-bridged dinuclear iron complex 71 has been accomplished from CpFe(CO)2SiMe3 and RSiH3. 

CpFe(arene)+ Mono-cations Benzylic Deprotonation.63... 

Activation towards nucleophilic attack by withdrawing the e density from the arene by CpFe ... 

Recently the first examples of complexes between the four-membered amidinato-Group 13 metal(l) heterocycles and transition metal fragments were reported. Complexes of the type CpFe(CO)2[M(X) But(NR)2 ] (M = Al, Ga, In X = Cl, Br R = Pri, Gy) were formed in salt-elimination reactions between Na[CpFe(CO)2] and [But(NR)2]MX2. A series of complexes between the four-membered amidinato-Group 13 metal(l) heterocycles and Group 10 metal(O) fragments have been prepared according to Scheme 35. ... 

Reaction of Na[FcC(NCy)2l with CpFe(CO)2l afforded the carbamoyl derivative CpFe(CO)[FcC(NCy)N(Cy)C(0)] (Scheme 136). Although not thermally labile, a CO ligand is readily lost on UV irradiation to give the amidinate derivative CpFe(CO)[FcC(NCy)2]- The addition of CO (SOpsig) to a solution of... 

CpFe(CO)[FcC(NCy)2] results in rapid exchange of CO at 25 °C. Heating this solution to 80 °C results in the partial formation of the carbamoyl species by a formal CO insertion into an Fe-N bond (Scheme 136). ... 

The triple-decked Tj -CpFe(PhBC4H3Et)FeCp-T7 complex is formed from 1-phenyl-4,5-dihydroborepine and [T) -CpFe(CO)2l2 by thermal reaction the boraben-zene derivative 77 -CpFe(PhBC5H4Me) also forms. With Mn2(CO), l-phenyl-4,5-dihydroborepine yields the triple-decker complex (CO)3Mn(PhBC4H3Et)Mn(CO)3. The borole complexes described so far are available using stable boroles as reactants. But borole molecules can also be generated from precursers in the course of complexation. 

The reaction of the 2,3-dihydro-l,3-diborole with [r7 -CpFe(CO)2]2 and CpCofCOIj at... 

C affords the green, triple-decked 7j -CpFe-M-(Et2C2-... 

As described ( 6.5.3.1) l-phenylbora-2,5-cyclohexadiene (cyclic divinylborane) reacts with FeCCOj under irradiation to the Fe(CO)3 complex. The dinuclear borabenzene complex [(C5H5BPh)Fe(CO>2]2 is found as a by-product. It is to be compared with the well-known [Tj -CpFe(CO)2]2. CjHjBPh reacts spontaneously with Co2(CO)u to form three products. Above 60°C (C5H5BPh)Co(CO)2 is the only product . At 30°C yellow isomers III and IV having partially hydrogenated borabenzene ligands form above 40°C III isomerizes to IV. 

Reaction of the Zn complex itself with CoClj yields different compounds by ligand transfer , e.g., T7 -CpCo(Et2C2B2Me2S) (83%), (ij -Cp)2Fe (70%) and traces of the triple-decked complex Tj -CpFe- A-(Et2C2B2Me2S)FeCp-i7. ... 

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