Synthetic and electrochemical studies on electroactive ionophores based on the di-η-cyclopentadienyl-molybdenum and -tungsten fragments

Article abstract of DOI:10.1016/0022-328X(88)89023-5

The compound reacts with HSCH2(CH2OCH2)3CH2SH in the presence of base giving the metalla-crown ether complex which can undergo a reversible one-electron oxidation.Treatment of (M=Mo or W) with 4'-carboxybenzo-15-crown-5 and base gives the complexes 2>, which also undergo reversible oxidation.Small changes in the E1/2 (<20 mV) were observed upon changing the electrolyte from (C2H5)4NPF6 to NaPF6.The new compounds, 2> (M=Mo or W) prepared from the sodium salt of (benzo-15-crown-5) -4'-thiol and , undergo a reversible one-electron oxidation and the E1/2 is shifted anodically upon addition of alkali metal cations.