The first 1,3,2-diazaalumina-[3]ferrocenophanes

N,N′Dilithio-1,1′-bis(trimethylsilylamino)ferrocene reacts with aluminum dichlorides RAlCl2 [R = tBu, CH(SiMe3)2, Si(SiMe3)2] in the presence of pyridine to give the respective 1,3,2-diazaalumina-[3]ferrocenophanes as pyridine adducts. The complex with R = tBu could be isolated in good yield and high purity and was characterised by multinuclear NMR in solution and X-ray structural analysis in the solid state.