Abstract: | On 2-(Dimethylaminomethyl)ferrocenyl Compounds of Vanadium, Niobium, and Tantalum Former results, indicating the ability of (dimethylaminomethyl)ferrocenyl groups forming stable σ-organo transition-metal derivatives, were proved by the synthesis of heterobimetallic 2-(dimethylaminomethyl)ferrocenyl compounds of the three-valued vanadium as well as five valued niobium and tantalum from VCl3, NbCl5, TaCl5, and (FcN)Li ( I ). The synthesis and properties of the compounds (FcN)2VCl ( II ), (FcN)nNbCl5–n(THF)x n = 1, x = 1,3 ( III ); n = 2, x = 0 ( IV ); n = 3, x = 0 ( V )] as well as (FcN)TaCl4(THF)1.5 ( VI ) are reported. An intensive characterization, especially in respect of possible chelate structures was tried by i.r., 1H-n.m.r., uv-vis, mass spectroscopy, and elementary analysis. |