While the redox active backbone of bis(phosphino)ferrocene ligands is often cited as being important in catalytic studies, there has been limited study of the structural features of oxidized bis(phosphino)ferrocene ligands. Oxidation of [Re(CO)3(dippf)Br] (dippf = 1,1′-bis(di-isopropylphosphino)ferrocene) by [NO][BF]4 results in the formation of [Re(CO)3(dippf)Br][BF4]. The oxidized species, [Re(CO)3(dippf)Br][BF4], is compared to the neutral species, [Re(CO)3(dippf)Br], using X-ray crystallography, cyclic voltammetry, visible spectroscopy, IR spectroscopy and 57Fe Mössbauer spectroscopy. In addition, the magnetic moment of the paramagnetic [Re(CO)3(dippf)Br][BF4] was measured using SQUID and Evans method. Finally, DFT was employed to examine the nature of the oxidized ligand.

Oxidation of a coordinated bis(phosphino)ferrocene ligand

251st National Meeting (2016)

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