Abstract
Photolysis of CpFe(η6-p-xyl)+(p-xyl = p-xylene) in acetonitrile at-40 °C results in an intensely purple solution that contains the CpFe(CH3CN)3ion. Allowing this purple solution to warm to room temperature results in the formation of the previously reported photoproducts: ferrocene and Fe(CH3CN)62+. The cyclic voltammogram of CpFe(CH3CN)3+ exhibits one irreversible oxidation Ep, a= +0.64 V vs. Ag/AgCl which is cyclopentadienyl ligand centered. Anodic photocurrents due to the CpFe(CH3CN)3+ cation were detected at room temperature via the photolysis of acetonitrile solutions of CpFe(η6-arene)+(arene = p-xylene, 9-cinnamylidenefluorene) through a rotating photoelectrode (RPE). A decrease in the photocurrent with increased rate of RPE rotation is observed for arene = 9-cinnamylidenefluorene, but for arene = p-xylene, the photocurrent was independent of rotation rate. These observations are explained in terms of the differences in the molar absorptivity of the two compounds.
Original language | English (US) |
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Pages (from-to) | 1641-1644 |
Number of pages | 4 |
Journal | Journal of the American Chemical Society |
Volume | 107 |
Issue number | 6 |
DOIs | |
State | Published - Mar 1985 |