Redox Behavior of N,N′-Ethylenebis(salicylideneaminato)bis(triphenylphosphine)ruthenium(II)

Visible spectra and electrochemical behavior of the title complex [Ru{C2H4(N=CHC6H4O-o)2}{P(C6H5)3}2] (I) are reported. The redox potentials of the ruthenium complex were determined at 25°C to be E⊖=0.27±0.01 V (in CH2Cl2) and −0.161±0.005 V (in CH3OH), relative to E⊖(Fe(C5H5)2)+⁄0)=0.400 V.