Photoreactions of vinylferrocene with carbon tetrachloride and tetrachloroethylene in cyclohexane

Summary

The photodecomposition of vinylferrocene in binary equimolar solvents such as carbon tetrachloride — cyclohexane and tetrachloroethene — cyclohexane exposed to monochromatic (λ = 300 nm) and polychromatic (λ 300 nm) radiation has been studied, and the quantum yields of the photoproducts and of vinylferrocene photodecrement determined. U.V. spectra of the systems suggest that intermolecular charge-transfer complexes are formed, in the first interaction stage between vinylferrocene and halogen derivatives; equilibrium constants, K, and molar extinction coefficients, (ɛ_c), have been determined for this process.