Complexation of tetracyanoethylene with dicarbonyl(cyclopentadienyl)iron moiety gave the title tetranuclear complex, CpFe(CO)24(m4-h1:h1:h1:h1:-TCNE)BF44 (1·BF44; Cp = h5-C5H5) with ligand coordination via its nitrile groups. Electrochem. and absorption spectroscopy (UV/Vis, IR) of the complex 1·BF44 reveal only a small degree of metal-to-ligand p back donation, in contrast to previously characterized compds. (TCNE)(MLn)4. Accordingly, the one-electron reduced (m4-TCNE)CpFe(CO)243+ exhibits a very well resolved EPR spectrum at g = 1.9965 with detectable coupling of 0.055 mT for 57Fe in natural abundance from four coordinated Fe(CO)2(C5H5)+ groups. on SciFinder(R)
Please log in
to take part in the discussion (add own reviews or comments).