No abstract

Jordan et al. / Electroreduction of Porphyrins and Metaltoporphyrins 3857 result from increased covalency in the (MesCp)zMn system. ConclusionsOur magnetic studies of decamethylmanganocene indicate that permethylation of the C p ring results in exclusively lowspin behavior, in contrast to other manganocenes where high-spin states are thermally populated. From this result we conclude that the ligand field strength of the C p ring is significantly enhanced by the complete replacement of the hydrogens with electron-donating methyl groups. The low-spin configuration of (Me5Cp)zMn renders it inert toward ring displacement and hydrolysis but the complex does undergo reversible oxidation and reduction to give low-spin 16-and 18-electron species for which no analogues exist in the other manganocenes. Further studies on other first-row transitionmetal decamethylmetallocenes are now in progress.

No abstract

No abstract

No abstract