Synthesis and properties of transition metal to carbon bonds

The known properties of alkyl and aryl derivatives of transition elements are reviewed, with particular attention to binary compounds of this type. Factors contributing to thermal stability of metal-carbon cr-bonds are -discussed and new contributions are presented dealing with: (i) chemistry of titanium(Iv) and titanium(n); (iz) metal-carbon bonds in N,N' -ethylenebis(salicylideneiminato) complexes ofiron and cobalt; (iiz) reactivity ofrhenium(I) bromo-carbonyl complexes; (iv) use of meta! carbonyls as a source of zerovalent metals in the preparations of binary complexes of 9,10-phenanthrenequinone and (v) synthesis of cyclopentadienyl-alkyl and cyclopentadienyl-aryl derivatives of uranium(Iv).