383162-16-1Relevant articles and documents
The synthesis and X-ray crystal structure of[(4-ferrocenylphenyl-imido)]trichlorobis(triphenylphosphine)rhenium(V) and related ferrocenyl-rhenium(V) compounds
Imrie,Dilworth,Zheng,Abrahams,Gerbera,Nyamoria
, p. 2624 - 2633 (2007/10/03)
The reaction of 4-ferrocenylaniline with trans-[ReOCl3(PPh3)2] gave [(4-ferrocenylphenylimido)]trichlorobis-(triphenylphosphine)rhenium(V) (1). The molecular structure of 1 has been determined by X-ray diffraction. The X-ray crystal structure of [(4-ferrocenylphenylimido)]tribromobis(triphenylphosphine)rhenium(V) (2) has also been determined and its molecular structure is compared with that of 1. The complexes 1 and 2 have also been investigated by cyclic voltammetry and UV-visible spectroscopy. The results of the cyclic voltammetry suggest that there is insignificant electron delocalization from the ferrocenyl group towards rhenium in 1 and 2. However, both 1 and 2 show a long wavelength absorption in their electronic spectra which is characteristic of conjugated ferrocenyl derivatives. The synthesis and characterization of two further similar imido-complexes but in which the ferrocenyl-phenyl group is part of a more extended unit is described (complexes 5 and 6). The synthesis of a rhenium oxo-complex,fac-oxotrichloro[1,1′-bis(diphenylphosphine) ferrocene]rhenium(V) (3) has also been achieved and 3 has been further derivatized with two different ferrocenylamines to provide rhenium complexes containing two ferrocenyl groups (4 and 7).
