Heterobimetallic complexes of the boron and aluminum containing 2-(dimethylaminomethyl)ferrocenyl ligands: Syntheses, characteristics and structures

The organometal derivatives (FcN)BCl2 (1), (FcN)(2)AlX [X = Br (2), I (3)] are formed at metathesis reactions of the anhydrous metal halides MX2 (M = B, X = Cl; M = Al, X = Br, I) with 2-(dimethylaminomethyl)ferrocenyl lithium, (FcN)Li. In contrary donor-acceptor complexes of the formula L --> BX'(3) [X' = C6H5CH2 (4), Cl (5), Br (6), I (7)] are formed at metalation react ions ofdimethylaminomethyl-ferrocene (L, FcNH) and BX'(3). The crystal structures of 1-3 and 5 could be proved by single crystal x-ray determinations. An intervalent electron transfer was determined by Fe-57-Mossbauer spectroscopy at 1-7. Cyclic voltammetric measurement was carried out at complex 4.