FERROCENYL SULFINYLIMIDE AND DIFERROCENYL SULFURDIIMIDE, FC-NSO AND FC(NSN)FE

(1)) The reactions of ferrocenylamine, Fc-NH2 (1), with thionyl chlori de and sulfur dichloride in hexane solution in the presence of triethy lamine lead to the title compounds Fc-NSO (2) and Fc(NSN)Fc (3), respe ctively. 2 and 3 have also been obtained in reactions of the silylated ferrocenylamine, Fc-NH(SiMe(3)) (Ib), with thionyl chloride. The ferr ocenyl sulfinylimide 2 has been converted to sulfurdiimides such as Fc (NSN)Fc (3) and Fc(NSN)R (R = (t)Bu (4a), SiMe(3) (4b)) by reaction wi th the lithium derivative of silylated amines, LiN(SiMe(3))R (R = Fc, (t)Bu, SiMe(3)). The new ferrocenyl compounds 2-4 have been characteri zed by their NMR spectra, and their electrochemical behaviour has been studied. The molecular structure of Fc-NSO (2) has been determined by an X-ray structure analysis; the sulfinylimide has the Z configuratio n, and the -NSO group is coplanar with the cyclopentadienyl ring to wh ich it is attached.