Add time:07/30/2019         Source:sciencedirect.com

Phase-selective ac polarography has been used to measure the electron transfer parameters of (η4-cyclooctatetraene)iron tricarbonyl in N,N-dimethylformamide with tetra-n-butylammonium hexafluorophosphate as supporting electrolyte. Uncorrected ks values of 0.24 and 0.15 cm s−1 were measured for the processes (COT)Fe(CO)30/1− and (COT)Fe(CO)31−/2−, respectively. An α of 0.52 was measured for each wave. These results were compared to those previously reported for the free cyclooctatetraene ligand, and it was concluded that no large structural changes accompany the reduction of the COT—metal compound, in either the first or second one-electron step.

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