Carbon Ligands

Organometallic compounds are not specifically discussed in this section. No carbonyl chemistry of scandium and yttrium has been reported yet and there is also no cyanide chemistry of these two elements although thiocyanato complexes of scandium Sc NCS 6 3 bonded through nitrogen are known. 8 The important developments involving scandium or yttrium with carbon have involved the fullerene derivatives of these elements. There have been some scandium carbide systems prepared but these will be...

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A useful compound for the preparation of organoscandium compounds is ,3-diketiminato scan-dium dichloride. This compound is prepared from the lithium salt of the aryl- -diketiminate and ScCl3 thf 3 the product retains a thf ligand and is five-coordinate in the solid state. 1H NMR shows that the compound is fluxional in solution.129 The chlorides are easily replaced and alkylation with organolithium compounds has been investigated. Reaction of bis-trimethylsilyl-methylscandium aryl-...